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Low-pressure area

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3880: 42: 54: 666:) their counter-clockwise (anticlockwise) circulation in the northern hemisphere (as the wind moves inward and is deflected right from the center of high pressure) and clockwise circulation in the southern hemisphere (as the wind moves inward and is deflected left from the center of high pressure). A tropical cyclone differs from a hurricane or typhoon based only on geographic location. A tropical cyclone is fundamentally different from a mid-latitude cyclone. A 3894: 502: 559: 606: 4227: 2836: 416: 321: 398:. In winter, the land cools off quickly, but the ocean keeps the heat longer due to its higher specific heat. The hot air over the ocean rises, creating a low-pressure area and a breeze from land to ocean while a large area of drying high pressure is formed over the land, increased by wintertime cooling. Monsoons resemble 588:
to deflect winds blowing towards the low-pressure center and creating a circulation. Worldwide, tropical cyclone activity peaks in late summer, when the difference between temperatures aloft and sea surface temperatures is the greatest. However, each particular basin has its own seasonal patterns. On
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of at least 26.5 °C (79.7 °F) are needed down to a depth of at least 50 m (160 ft); waters of this temperature cause the overlying atmosphere to be unstable enough to sustain convection and thunderstorms. Another factor is rapid cooling with height, which allows the release of the
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can occur at various scales, from the microscale to the synoptic scale. Larger-scale troughs, also called Rossby waves, are synoptic in scale. Shortwave troughs embedded within the flow around larger scale troughs are smaller in scale, or mesoscale in nature. Both Rossby waves and shortwaves embedded
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suggests that approximately 234 significant extratropical cyclones form each winter. In Europe, particularly in the United Kingdom and in the Netherlands, recurring extratropical low-pressure weather systems are typically known as depressions. These tend to bring wet weather throughout the year.
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a worldwide scale, May is the least active month while September is the most active month. November is the only month that activity in all the tropical cyclone basins is possible. Nearly one-third of the world's tropical cyclones form within the western Pacific Ocean, making it the most active
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circulations are caused by thermal lows which form over large areas of land and their strength is driven by how land heats more quickly than the surrounding nearby ocean. This generates a steady wind blowing toward the land, bringing the moist near-surface air over the oceans with it. Similar
274:. Meteorologists use the term "cyclone" where circular pressure systems flow in the direction of the Earth's rotation, which normally coincides with areas of low pressure. The largest low-pressure systems are cold-core polar cyclones and extratropical cyclones which lie on the 307:
due to a passing by shortwave aloft or upper-level jet streak before occluding later in their life cycle as cold-core cyclones. Polar lows are small-scale, short-lived atmospheric low-pressure systems that occur over the ocean areas poleward of the main
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in Australia during February. Its poleward progression is accelerated by the onset of the summer monsoon which is characterized by the development of lower air pressure over the warmest part of the various continents. The large-scale thermal lows over
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in both the Northern and Southern Hemispheres. They are part of the larger class of mesoscale weather-systems. Polar lows can be difficult to detect using conventional weather reports and are a hazard to high-latitude operations, such as shipping and
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located in both the Northern and Southern hemispheres. All share one important aspect, that of upward vertical motion within the troposphere. Such upward motions decrease the mass of local atmospheric columns of air, which lowers surface pressure.
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Schematic representation of flow (represented in black) around a low-pressure area in the Northern hemisphere. The pressure-gradient force is represented by blue arrows, the Coriolis acceleration (always perpendicular to the velocity) by red
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are needed, as high shear is disruptive to the storm's circulation. Lastly, a formative tropical cyclone needs a pre-existing system of disturbed weather, although without a circulation no cyclonic development will take place.
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circulations. In the southern hemisphere, the monsoon trough associated with the Australian monsoon reaches its most southerly latitude in February, oriented along a west-northwest/east-southeast axis. Many of the world's
635:. Since stronger high-pressure systems contain cooler or drier air, the air mass is denser and flows towards areas that are warm or moist, which are in the vicinity of low-pressure areas in advance of their associated 527:
circulation. Monsoon troughing in the western Pacific reaches its zenith in latitude during the late summer when the wintertime surface ridge in the opposite hemisphere is the strongest. It can reach as far as the
394:, surface heating, convergence at the surface, divergence aloft, or from storm-produced outflows at the surface. However the lifting occurs, the air cools due to expansion in lower pressure, which in turn produces 376:
can lead to intense, rapid solar heating of the lower layers of air. The hot air is less dense than surrounding cooler air. This, combined with the rising of the hot air, results in a low-pressure area called a
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form due to latent heat driven by significant thunderstorm activity, and are warm-core with well-defined circulations. Certain criteria need to be met for their formation. In most situations,
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over deserts and other land masses. Since localized areas of warm air are less dense than their surroundings, this warmer air rises, which lowers atmospheric pressure near that portion of the
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below as air flows upwards away from the surface, which lowers surface pressures as this upward motion partially counteracts the force of gravity packing the air close to the ground.
174:. Monsoon troughs reach their northerly extent in August and their southerly extent in February. When a convective low acquires a well-hot circulation in the tropics it is termed a 89:
are associated with lighter winds and clear skies. Winds circle anti-clockwise around lows in the northern hemisphere, and clockwise in the southern hemisphere, due to opposing
2002: 1318: 402:, terms usually referring to the localized, diurnal (daily) cycle of circulation near coastlines everywhere, but they are much larger in scale - also stronger and seasonal. 85:
is lower than that of surrounding locations. Low-pressure areas are commonly associated with inclement weather (such as cloudy, windy, with possible rain or storms), while
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February position of the ITCZ and monsoon trough in the Pacific Ocean, depicted by area of convergent streamlines offshore Australia and in the equatorial eastern Pacific
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shows the process which sustains low-pressure areas. Diverging winds aloft allow for lower pressure and convergence at the Earth's surface, which leads to upward motion.
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tend to form east of climatological trough positions aloft near the east coast of continents, or west side of oceans. A study of extratropical cyclones in the
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circulations. Low-pressure areas can also form due to organized thunderstorm activity over warm water. When this occurs over the tropics in concert with the
4586: 3195: 643:, between a high-pressure system and a low-pressure system, the stronger the wind. Thus, stronger areas of low pressure are associated with stronger winds. 702:
are often too small, and of too short duration, to be influenced by the Coriolis force, but may be so-influenced when arising from a low-pressure system.
1973: 1769: 1216: 216:, such as heat energy from the surface, allows for warmer night-time minimums in all seasons. The stronger the area of low pressure, the stronger the 3609: 1815: 1125: 178:. Tropical cyclones can form during any month of the year globally but can occur in either the northern or southern hemisphere during December. 1603: 1479: 1414: 1091: 1556: 1302: 1261: 3925: 2534: 2358: 909: 765: 1720:
S.K. Gulev; O. Zolina & S. Grigoriev (2001). "Winter Storms in the Northern Hemisphere (1958–1999) via the Internet Wayback Machine".
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Large polar cyclones help determine the steering of systems moving through the mid-latitudes, south of the Arctic and north of the
943: 1070: 694:. Friction with land slows down the wind flowing into low-pressure systems and causes wind to flow more inward, or flowing more 3918: 3630: 3589: 2527: 1578: 1574: 1486: 1418: 1223: 1200: 1190: 1129: 1095: 1062: 913: 888: 858: 769: 3623: 721: 520: 167: 1502: 270:. Cyclogenesis is an umbrella term for several different processes, all of which result in the development of some sort of 4905: 4895: 194: 4782: 3391: 493:, and Southeast Asia. The lows are most commonly located over the Tibetan plateau and in the lee of the Rocky mountains. 4798: 4372: 4256: 4154: 3528: 3407: 2981: 2865: 2763: 2408: 1912:"Forcing of the Asian monsoon on the Tibetan Plateau: Evidence from high-resolution ice core and tropical coral records" 1658: 1766: 1444: 4709: 4393: 4295: 4126: 3734: 3716: 3318: 3002: 2904: 2735: 619: 387: 213: 2181: 1845: 4777: 3386: 4194: 3990: 2803: 2599: 2478: 2098: 1390:"Frequently Asked Questions: Why do tropical cyclones require 80 °F (27 °C) ocean temperatures to form?" 4890: 4832: 3498: 3441: 2234: 1697: 1672: 41: 4607: 4400: 4351: 3884: 3216: 3009: 2960: 2338: 2084: 2061: 1655:
A climatology based on reanalysis of baroclinic developmental regions in the extratropical northern hemisphere.
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can also form from mesocyclones, but more often develop from environments of high instability and low vertical
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image of typical extratropical cyclones over the ocean. Note the maximum winds on the poleward side of the
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there are an average of 37 cyclones in existence during any 6-hour period. A separate study in the
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experienced in its vicinity. Globally, low-pressure systems are most frequently located over the
93:. Low-pressure systems form under areas of wind divergence that occur in the upper levels of the 86: 35: 917: 777: 576:
Tropical cyclones generally need to form more than 555 km (345 mi) or poleward of the
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is initially accelerated from areas of high pressure to areas of low pressure. This is due to
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circulations, or low-pressure areas, within the atmosphere. Cyclogenesis is the opposite of
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provides an index used to gauge the magnitude of this effect in the Northern Hemisphere.
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also occur during the summer over continental areas across the subtropics - such as the
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that powers a tropical cyclone. High humidity is needed, especially in the lower-to-mid
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Carlyle H. Wash, Stacey H. Heikkinen, Chi-Sann Liou, and Wendell A. Nuss (1989).
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Diverging winds aloft, ahead of these troughs, cause atmospheric lift within the
30:"Weather system" redirects here. For a general discussion on pressure areas, see 4767: 4684: 4663: 4642: 4628: 4460: 4379: 3846: 3766: 3660: 3513: 3376: 3293: 3272: 3251: 3237: 3069: 2988: 2393: 2368: 2289: 1884: 993: 746: 605: 547: 524: 439: 399: 378: 354: 345: 325: 309: 279: 259: 237: 209: 182: 147: 141: 114: 102: 66: 4226: 2835: 1654: 1043: 1018: 240:), recurring low-pressure weather systems are typically known as "low levels". 4803: 3851: 3841: 3820: 3781: 3493: 3412: 2429: 2383: 2348: 2182:"What is a Hurricane, Typhoon, or Tropical Cyclone? | Precipitation Education" 1762: 1389: 1361: 636: 415: 362: 358: 349: 320: 126: 118: 2006: 1706: 1322: 4858: 4747: 3985: 3815: 3771: 3751: 3467: 3356: 2594: 2510: 2505: 2497: 2353: 1673:"Variability of Southern Hemisphere Extratropical Cyclone Behavior, 1958–97" 1452: 804: 538: 445: 283: 190: 159: 46: 1856: 1741: 1516:
CHAPTER 8: Introduction to the Hydrosphere (e). Cloud Formation Processes.
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as it rises, the cloudy skies typical of low-pressure areas act to dampen
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form as warm core cyclones over land, and can lead to tornado formation.
198: 49:. The center of the spiral-shaped cloud system is also center of the low. 3965: 3793: 3569: 2574: 2468: 2285: 2130:"What is the difference between a hurricane, a cyclone, and a typhoon?" 699: 687: 683: 663: 659: 628: 542: 382: 271: 255: 163: 58: 1846:"Chapter-II Monsoon-2004: Onset, Advancement and Circulation Features" 654:'s rotation is what gives winds around low-pressure areas (such as in 486: 369: 2058: 1653:
L. de la Torre, Nieto R., Noguerol M., Añel J.A., Gimeno L. (2008).
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National Centre for Environmental Science. Retrieved on 2009-04-04.
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A second is an area where wind divergence aloft occurs ahead of
4150: 3914: 2759: 2523: 2258: 1445:"Using the WSR-88D to Predict East Central Florida Waterspouts" 550:
are associated with these climatological low-pressure systems.
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within the flow around Rossby waves migrate equatorward of the
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A clockwise spinning low-pressure area or cyclone of southern
1362:"Frequently Asked Questions: How do tropical cyclones form?" 1239:
Monthly Weather Review pp. 234–257. Retrieved on 2008-06-28.
1019:"A rational subdivision of scales for atmospheric processes" 776:. Glossary of Meteorology. Allen Press. 2008. Archived from 212:
during the day. At night the absorptive effect of clouds on
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National Centre for Medium Range Forecasting (2004-10-23).
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10.1175/1520-0442(2000)013<0550:VOSHEC>2.0.CO;2
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A visible image of a powerful northern hemisphere cyclone,
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Polar Lows: Mesoscale Weather Systems in the Polar Regions
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British Wind Energy Association. Retrieved on 2009-02-16.
2007:"Frequently Asked Questions: When is hurricane season?" 2087:
Southern Region Headquarters. Retrieved on 2009-02-16.
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Arctic Oscillation (AO) time series, 1899 – June 2002.
631:(or temperature and moisture) differences between two 2158:"COMPARE AND CONTRAST: MID-LAT CYCLONE AND HURRICANE" 254:
Cyclogenesis is the development and strengthening of
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Atlantic Oceanographic and Meteorological Laboratory
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Atlantic Oceanographic and Meteorological Laboratory
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Thompson (2005). 1820:University Corporation for Atmospheric Research 1671:Ian Simmonds & Kevin Keay (February 2000). 1394:National Oceanic and Atmospheric Administration 1366:National Oceanic and Atmospheric Administration 1352: 1350: 1348: 1346: 1344: 1342: 1023:Bulletin of the American Meteorological Society 4717:List of atmospheric pressure records in Europe 3326:List of atmospheric pressure records in Europe 1953:"1.2 Pacific Ocean Surface Streamline Pattern" 1529:Global maps of Local Land-Atmosphere coupling. 1443:Choy, Barry K.; Scott M. Spratt (2003-05-13). 390:is caused by the moist ocean-air being lifted 4162: 3926: 2771: 2535: 2270: 1974:"Global Pattern of Surface Pressure and Wind" 1237:A Rapid Cyclogenesis Event during GALE IOP 9. 181:Atmospheric lift will also generally produce 8: 2005:, Hurricane Research Division (2009-02-06). 1527:Bart van den Hurk and Eleanor Blyth (2008). 1518:Physical Geography. Retrieved on 2009-01-01. 865:. Glossary of Meteorology. Allen Press. 2009 515:Elongated areas of low pressure form at the 639:. The stronger the pressure difference, or 541:help create pressure gradients which drive 303:Extratropical cyclones form as waves along 4822: 4169: 4155: 4147: 4143: 4028: 4021: 4012: 3933: 3919: 3911: 3756: 3689: 3534: 3431: 2778: 2764: 2756: 2752: 2637: 2630: 2621: 2542: 2528: 2520: 2493: 2484: 2473: 2373: 2277: 2263: 2255: 1471: 1469: 158:'s surface. Large-scale thermal lows over 1935: 1696: 1042: 189:once the air temperature drops below the 3610:South-West Indian Ocean tropical cyclone 1649: 1647: 1497: 1495: 1285:E. A. Rasmussen & J. Turner (2003). 800:"What's happening inside highs and lows" 604: 40: 757: 2124: 2122: 2076: 2074: 1321:, Hurricane Research Division (2004). 1293:. Cambridge University Press. p.  129:that extends through the troposphere). 1569:Glossary of Meteorology (June 2000). 1503:What causes the west African monsoon? 1124:Glossary of Meteorology (June 2000). 908:Glossary of Meteorology (June 2000). 883:Glossary of Meteorology (June 2000). 7: 2359:Tropical cyclones and climate change 2059:Education and Careers: What is wind? 4783:East Asian-northwest Pacific storms 3583:Mediterranean tropical-like cyclone 3576:North Indian Ocean tropical cyclone 3509:Mediterranean tropical-like cyclone 3392:East Asian-northwest Pacific storms 1890:Australian Broadcasting Corporation 1881:Australian Broadcasting Corporation 3671:Upper tropospheric cyclonic vortex 3617:Australian region tropical cyclone 2103:Wind Systems: Low Pressure Centers 1853:Ministry of Earth Sciences (India) 938:BBC Weather Glossary (July 2006). 136:, which are of smaller wavelength. 25: 2205:Horton, Jennifer (20 July 2009). 232:. In Europe (particularly in the 4225: 3892: 3878: 2834: 2099:"Tropical Cyclones (Hurricanes)" 1475:Glossary of Meteorology (2009). 1413:Glossary of Meteorology (2009). 1212:Glossary of Meteorology (2009). 1189:Glossary of Meteorology (2009). 944:British Broadcasting Corporation 3631:South Atlantic tropical cyclone 3590:Black Sea tropical-like cyclone 1916:Journal of Geophysical Research 1575:American Meteorological Society 1487:American Meteorological Society 1419:American Meteorological Society 1224:American Meteorological Society 1201:American Meteorological Society 1130:American Meteorological Society 1096:American Meteorological Society 1063:American Meteorological Society 914:American Meteorological Society 889:American Meteorological Society 859:American Meteorological Society 770:American Meteorological Society 690:occurs in the south Pacific or 532:in East Asia during August and 34:. For the opposite effect, see 4778:Continental North Asian storms 3624:South Pacific tropical cyclone 3387:Continental North Asian storms 1549:Meteorology at the Millennium. 1547:Robert Penrose Pearce (2002). 1538:KNMI. Retrieved on 2009-01-02. 969:"UCAR Glossary — Cyclone" 722:Intertropical Convergence Zone 521:Intertropical Convergence Zone 208:decreases, which causes lower 168:Intertropical Convergence Zone 1: 2097:Nelson, Stephen (Fall 2014). 1251:"The Norwegian Cyclone Model" 4317:Great Sheffield Gale of 1962 4257:Moray Firth fishing disaster 3885:Tropical cyclones portal 2926:Great Sheffield Gale of 1962 2866:Moray Firth fishing disaster 2409:Ridiculously Resilient Ridge 2162:www.theweatherprediction.com 1659:New York Academy of Sciences 411:Mid-latitudes and subtropics 195:diurnal temperature extremes 4710:List of European windstorms 4127:Pacific Northwest windstorm 3735:Mesoscale convective vortex 3717:Mesoscale convective system 3319:List of European windstorms 2736:Pacific Northwest windstorm 2038:James B Elsner, Kam-Biu Liu 1249:Shay Johnson (2001-09-25). 1165:, San Diego. Archived from 620:Precipitation (meteorology) 214:outgoing longwave radiation 57:A low-pressure system over 4922: 1641:. Retrieved on 2009-03-02. 1559:. Retrieved on 2009-01-02. 1489:. Retrieved on 2009-03-02. 1226:. Retrieved on 2009-03-02. 1203:. Retrieved on 2009-03-02. 1154:Joel Norris (2005-03-19). 1100:amsglossary.allenpress.com 1067:amsglossary.allenpress.com 1044:10.1175/1520-0477-56.5.527 992:Robert Hart (2003-02-18). 863:amsglossary.allenpress.com 774:amsglossary.allenpress.com 613: 569: 508: 429: 247: 134:embedded shortwave troughs 29: 4833:Australian east coast low 4373:1992 New Year's Day Storm 4223: 4146: 3872: 3499:Australian east coast Low 3442:Australian east coast low 2982:1992 New Year's Day Storm 2832: 2755: 2519: 2239:SCIENCE — Earth and Space 1951:U. S. Navy (1998-01-22). 1514:Michael Pidwirny (2008). 4886:Meteorological phenomena 4401:Boxing Day Storm of 1998 4394:Christmas Eve storm 1997 3010:Boxing Day Storm of 1998 3003:Christmas Eve storm 1997 2339:Annular tropical cyclone 2085:National Weather Service 1776:Retrieved on 2009-03-02. 1639:University of Washington 1163:University of California 998:Florida State University 732:Surface weather analysis 698:, toward their centers. 4629:Friederike (David) 2018 4622:Eleanor (Burglind) 2018 4345:December 1981 windstorm 4303:North Sea flood of 1953 4216:Christmas Flood of 1717 3799:Multiple-vortex tornado 3238:Friederike (David) 2018 3231:Eleanor (Burglind) 2018 2954:December 1981 windstorm 2912:North Sea flood of 1953 2825:Christmas Flood of 1717 2211:SCIENCE, EVERYDAY MYTHS 1814:Becca Hatheway (2008). 1787:"Understanding weather" 1551:Academic Press, p. 66. 798:Williams, Jack (2007). 566:, at its peak intensity 460:shows that between the 286:lie within the smaller 197:. Since clouds reflect 113:, which form half of a 4854:Southern Ocean cyclone 3942:Extratropical cyclones 3740:Line echo wave pattern 3694:Mesoscale ocean eddies 3463:Southern Ocean cyclone 2551:Extratropical cyclones 2344:Bar (tropical cyclone) 2334:Central dense overcast 2138:National Ocean Service 1627:Todd Mitchell (2004). 1602:Weather (2004-09-01). 885:"Cyclonic circulation" 727:North American Monsoon 611: 591:tropical cyclone basin 567: 506: 454:Extratropical cyclones 427: 329: 324:This depiction of the 81:is a region where the 62: 50: 4503:Friedhelm/Bawbag 2011 4366:Burns' Day storm 1990 4250:Night of the Big Wind 3971:Post-tropical cyclone 3112:Friedhelm/Bawbag 2011 2975:Burns' Day storm 1990 2859:Night of the Big Wind 2580:Post-tropical cyclone 2329:Rapid intensification 1978:Ohio State University 1742:10.1007/s003820000145 1501:Louisa Watts (2009). 608: 561: 504: 436:Extratropical cyclone 418: 323: 56: 44: 4906:Atmospheric pressure 4896:Atmospheric dynamics 4338:Gale of January 1976 3899:Tornadoes portal 3809:Anticyclonic tornado 3777:Low-topped supercell 3555:Cape Verde hurricane 2947:Gale of January 1976 2031:"Examining the ENSO" 1937:10.1029/2004JD004933 1767:Frontal Depressions. 1017:I. Orlanski (1975). 742:Trough (meteorology) 400:sea and land breezes 392:upwards by mountains 342:heat of condensation 83:atmospheric pressure 4818:Southern Hemisphere 4773:Western Disturbance 4587:Thomas (Doris) 2017 4359:Great storm of 1987 4324:1968 Scotland storm 4264:Tay Bridge disaster 4243:Great Storm of 1824 4209:Great Storm of 1703 4179:European windstorms 4008:Northern Hemisphere 3601:Southern Hemisphere 3539:Northern Hemisphere 3427:Southern Hemisphere 3382:Western Disturbance 3196:Thomas (Doris) 2017 2968:Great storm of 1987 2933:1968 Scotland storm 2873:Tay Bridge disaster 2852:Great Storm of 1824 2818:Great Storm of 1703 2788:European windstorms 2617:Northern Hemisphere 2435:South Atlantic High 2423:Southern Hemisphere 2399:North American High 2377:Northern Hemisphere 1928:2005JGRD..110.4101D 1734:2001ClDy...17..795G 1689:2000JCli...13..550S 1604:"The Asian Monsoon" 1214:Upper-Level Trough. 1035:1975BAMS...56..527. 674:that occurs in the 470:Northern Hemisphere 458:Southern Hemisphere 374:evaporative cooling 264:high-pressure areas 170:, it is known as a 87:high-pressure areas 18:Low pressure system 3956:Anticyclonic storm 3548:Atlantic hurricane 3504:Lake Huron cyclone 2565:Anticyclonic storm 2440:South Pacific High 2404:North Pacific High 2319:High-pressure area 2309:Anticyclonic storm 2080:JetStream (2008). 2064:2011-03-04 at the 1801:"KNMI - Depressie" 1772:2009-02-24 at the 1677:Journal of Climate 1634:2003-12-12 at the 1610:on August 31, 2007 1534:2009-02-25 at the 1482:2008-05-22 at the 1219:2009-06-09 at the 1196:2009-06-09 at the 717:High-pressure area 712:East Asian Monsoon 612: 601:Associated weather 582:5th parallel south 578:5th parallel north 568: 507: 450:Arctic oscillation 432:Arctic oscillation 428: 337:water temperatures 330: 315:offshore platforms 63: 51: 36:High-pressure area 4871: 4870: 4867: 4866: 4812: 4811: 4756: 4755: 4726: 4725: 4271:Eyemouth disaster 4187:14th-18th century 4135: 4134: 4095: 4094: 3976:Low-pressure area 3908: 3907: 3868: 3867: 3864: 3863: 3860: 3859: 3804:Satellite tornado 3679: 3678: 3644: 3643: 3640: 3639: 3564:Pacific hurricane 3480: 3479: 3476: 3475: 3421: 3420: 3365: 3364: 3335: 3334: 2880:Eyemouth disaster 2796:14th-18th century 2744: 2743: 2704: 2703: 2585:Low-pressure area 2463: 2462: 2455:Subtropical ridge 2414:Subtropical ridge 2324:Low-pressure area 2294:Centers of action 2107:Tulane University 1557:978-0-12-548035-2 1304:978-0-521-62430-5 678:and northeastern 641:pressure gradient 333:Tropical cyclones 187:adiabatic cooling 71:low-pressure area 16:(Redirected from 4913: 4891:Types of cyclone 4838:Black nor'easter 4823: 4819: 4738:Black Sea storms 4719: 4712: 4694: 4687: 4680: 4673: 4666: 4659: 4652: 4645: 4638: 4631: 4624: 4617: 4610: 4603: 4596: 4589: 4582: 4575: 4568: 4561: 4554: 4547: 4540: 4533: 4526: 4519: 4512: 4505: 4498: 4491: 4484: 4477: 4470: 4463: 4456: 4449: 4442: 4424: 4417: 4410: 4403: 4396: 4389: 4382: 4380:Braer Storm 1993 4375: 4368: 4361: 4354: 4347: 4340: 4333: 4326: 4319: 4312: 4305: 4298: 4291: 4273: 4266: 4259: 4252: 4245: 4229: 4218: 4211: 4204: 4197: 4181: 4171: 4164: 4157: 4148: 4144: 4088: 4081: 4063: 4056: 4049: 4042: 4029: 4022: 4018: 4013: 4009: 3935: 3928: 3921: 3912: 3897: 3896: 3895: 3883: 3882: 3881: 3757: 3690: 3633: 3626: 3619: 3612: 3602: 3592: 3585: 3578: 3566: 3557: 3550: 3540: 3535: 3447:Black nor'easter 3432: 3428: 3347:Black Sea storms 3328: 3321: 3303: 3296: 3289: 3282: 3275: 3268: 3261: 3254: 3247: 3240: 3233: 3226: 3219: 3212: 3205: 3198: 3191: 3184: 3177: 3170: 3163: 3156: 3149: 3142: 3135: 3128: 3121: 3114: 3107: 3100: 3093: 3086: 3079: 3072: 3065: 3058: 3051: 3033: 3026: 3019: 3012: 3005: 2998: 2991: 2989:Braer Storm 1993 2984: 2977: 2970: 2963: 2956: 2949: 2942: 2935: 2928: 2921: 2914: 2907: 2900: 2882: 2875: 2868: 2861: 2854: 2838: 2827: 2820: 2813: 2806: 2790: 2780: 2773: 2766: 2757: 2753: 2697: 2690: 2672: 2665: 2658: 2651: 2638: 2631: 2627: 2622: 2618: 2544: 2537: 2530: 2521: 2494: 2490: 2485: 2481: 2474: 2430:South Polar High 2384:North Polar High 2374: 2279: 2272: 2265: 2256: 2250: 2249: 2247: 2246: 2231: 2225: 2224: 2222: 2221: 2202: 2196: 2195: 2193: 2192: 2178: 2172: 2171: 2169: 2168: 2154: 2148: 2147: 2145: 2144: 2126: 2117: 2116: 2114: 2113: 2094: 2088: 2078: 2069: 2055: 2049: 2048: 2046: 2045: 2035: 2027: 2021: 2020: 2018: 2017: 1999: 1993: 1992: 1990: 1989: 1980:. Archived from 1972:Hobgood (2008). 1969: 1963: 1962: 1960: 1959: 1948: 1942: 1941: 1939: 1907: 1901: 1900: 1898: 1897: 1877: 1871: 1870: 1868: 1867: 1861: 1855:. Archived from 1850: 1841: 1835: 1834: 1832: 1831: 1822:. Archived from 1811: 1805: 1804: 1797: 1791: 1790: 1783: 1777: 1760: 1754: 1753: 1722:Climate Dynamics 1717: 1711: 1710: 1700: 1668: 1662: 1651: 1642: 1625: 1619: 1618: 1616: 1615: 1606:. Archived from 1596: 1590: 1589: 1587: 1586: 1577:. Archived from 1566: 1560: 1545: 1539: 1525: 1519: 1512: 1506: 1499: 1490: 1473: 1464: 1463: 1461: 1460: 1451:. Archived from 1440: 1434: 1433: 1431: 1430: 1421:. Archived from 1410: 1404: 1403: 1401: 1400: 1382: 1376: 1375: 1373: 1372: 1354: 1337: 1336: 1334: 1333: 1315: 1309: 1308: 1292: 1282: 1276: 1275: 1273: 1272: 1266: 1260:. Archived from 1255: 1246: 1240: 1233: 1227: 1210: 1204: 1187: 1181: 1180: 1178: 1177: 1171: 1160: 1151: 1145: 1144: 1142: 1141: 1132:. Archived from 1121: 1115: 1114: 1112: 1111: 1088: 1082: 1081: 1079: 1078: 1055: 1049: 1048: 1046: 1014: 1008: 1007: 1005: 1004: 989: 983: 982: 980: 979: 965: 959: 958: 956: 955: 946:. Archived from 935: 929: 928: 926: 925: 916:. Archived from 905: 899: 898: 896: 895: 880: 874: 873: 871: 870: 851: 845: 844: 842: 841: 822: 816: 815: 813: 812: 795: 789: 788: 786: 785: 762: 696:ageostrophically 688:tropical cyclone 616:Geostrophic wind 572:Tropical cyclone 554:Tropical cyclone 268:anticyclogenesis 176:tropical cyclone 21: 4921: 4920: 4916: 4915: 4914: 4912: 4911: 4910: 4876: 4875: 4872: 4863: 4842: 4817: 4808: 4787: 4752: 4722: 4715: 4708: 4697: 4690: 4683: 4676: 4669: 4662: 4655: 4648: 4641: 4634: 4627: 4620: 4613: 4606: 4599: 4592: 4585: 4578: 4571: 4564: 4557: 4550: 4543: 4536: 4529: 4522: 4515: 4508: 4501: 4494: 4487: 4480: 4473: 4466: 4459: 4452: 4445: 4438: 4427: 4420: 4413: 4406: 4399: 4392: 4385: 4378: 4371: 4364: 4357: 4350: 4343: 4336: 4329: 4322: 4315: 4308: 4301: 4294: 4287: 4276: 4269: 4262: 4255: 4248: 4241: 4230: 4221: 4214: 4207: 4202:Burchardi flood 4200: 4195:Grote Mandrenke 4193: 4182: 4177: 4175: 4131: 4091: 4084: 4077: 4066: 4059: 4054:Great basin low 4052: 4045: 4040:Alberta clipper 4038: 4016: 4007: 4002: 3944: 3939: 3909: 3904: 3893: 3891: 3879: 3877: 3856: 3825: 3746: 3711: 3675: 3636: 3629: 3622: 3615: 3608: 3600: 3595: 3588: 3581: 3574: 3562: 3553: 3546: 3538: 3526: 3518: 3472: 3451: 3426: 3417: 3396: 3361: 3331: 3324: 3317: 3306: 3299: 3292: 3285: 3278: 3271: 3264: 3257: 3250: 3243: 3236: 3229: 3222: 3215: 3208: 3201: 3194: 3187: 3180: 3173: 3166: 3159: 3152: 3145: 3138: 3131: 3124: 3117: 3110: 3103: 3096: 3089: 3082: 3075: 3068: 3061: 3054: 3047: 3036: 3029: 3022: 3015: 3008: 3001: 2994: 2987: 2980: 2973: 2966: 2959: 2952: 2945: 2938: 2931: 2924: 2917: 2910: 2903: 2896: 2885: 2878: 2871: 2864: 2857: 2850: 2839: 2830: 2823: 2816: 2811:Burchardi flood 2809: 2804:Grote Mandrenke 2802: 2791: 2786: 2784: 2740: 2700: 2693: 2686: 2675: 2668: 2663:Great basin low 2661: 2654: 2649:Alberta clipper 2647: 2625: 2616: 2611: 2553: 2548: 2515: 2511:South Polar low 2506:North Polar low 2488: 2477: 2459: 2450:Australian High 2418: 2363: 2297: 2283: 2253: 2244: 2242: 2233: 2232: 2228: 2219: 2217: 2204: 2203: 2199: 2190: 2188: 2180: 2179: 2175: 2166: 2164: 2156: 2155: 2151: 2142: 2140: 2128: 2127: 2120: 2111: 2109: 2096: 2095: 2091: 2082:Origin of Wind. 2079: 2072: 2066:Wayback Machine 2056: 2052: 2043: 2041: 2033: 2029: 2028: 2024: 2015: 2013: 2001: 2000: 1996: 1987: 1985: 1971: 1970: 1966: 1957: 1955: 1950: 1949: 1945: 1922:(D4): 1 of 13. 1909: 1908: 1904: 1895: 1893: 1879: 1878: 1874: 1865: 1863: 1859: 1848: 1843: 1842: 1838: 1829: 1827: 1813: 1812: 1808: 1799: 1798: 1794: 1785: 1784: 1780: 1774:Wayback Machine 1761: 1757: 1728:(10): 795–809. 1719: 1718: 1714: 1670: 1669: 1665: 1652: 1645: 1636:Wayback Machine 1626: 1622: 1613: 1611: 1598: 1597: 1593: 1584: 1582: 1568: 1567: 1563: 1546: 1542: 1536:Wayback Machine 1526: 1522: 1513: 1509: 1500: 1493: 1484:Wayback Machine 1474: 1467: 1458: 1456: 1442: 1441: 1437: 1428: 1426: 1412: 1411: 1407: 1398: 1396: 1384: 1383: 1379: 1370: 1368: 1356: 1355: 1340: 1331: 1329: 1317: 1316: 1312: 1305: 1284: 1283: 1279: 1270: 1268: 1264: 1253: 1248: 1247: 1243: 1234: 1230: 1221:Wayback Machine 1211: 1207: 1198:Wayback Machine 1188: 1184: 1175: 1173: 1169: 1158: 1153: 1152: 1148: 1139: 1137: 1123: 1122: 1118: 1109: 1107: 1090: 1089: 1085: 1076: 1074: 1057: 1056: 1052: 1016: 1015: 1011: 1002: 1000: 991: 990: 986: 977: 975: 967: 966: 962: 953: 951: 937: 936: 932: 923: 921: 907: 906: 902: 893: 891: 882: 881: 877: 868: 866: 853: 852: 848: 839: 837: 824: 823: 819: 810: 808: 797: 796: 792: 783: 781: 764: 763: 759: 755: 708: 622: 603: 586:Coriolis effect 584:, allowing the 574: 556: 523:as part of the 513: 499: 483:Mexican plateau 442: 413: 408: 252: 246: 230:Rocky Mountains 222:Tibetan Plateau 206:solar radiation 152:solar incidence 91:Coriolis forces 39: 32:Pressure system 28: 23: 22: 15: 12: 11: 5: 4919: 4917: 4909: 4908: 4903: 4898: 4893: 4888: 4878: 4877: 4869: 4868: 4865: 4864: 4862: 4861: 4856: 4850: 4848: 4844: 4843: 4841: 4840: 4835: 4829: 4827: 4820: 4814: 4813: 4810: 4809: 4807: 4806: 4801: 4795: 4793: 4789: 4788: 4786: 4785: 4780: 4775: 4770: 4764: 4762: 4758: 4757: 4754: 4753: 4751: 4750: 4745: 4740: 4734: 4732: 4728: 4727: 4724: 4723: 4721: 4720: 4713: 4705: 4703: 4699: 4698: 4696: 4695: 4688: 4681: 4674: 4667: 4660: 4653: 4646: 4639: 4632: 4625: 4618: 4611: 4604: 4597: 4590: 4583: 4576: 4569: 4562: 4559:Christina 2014 4555: 4548: 4541: 4534: 4527: 4520: 4513: 4506: 4499: 4492: 4485: 4478: 4471: 4464: 4457: 4450: 4443: 4435: 4433: 4429: 4428: 4426: 4425: 4418: 4411: 4404: 4397: 4390: 4383: 4376: 4369: 4362: 4355: 4348: 4341: 4334: 4331:Quimburga 1972 4327: 4320: 4313: 4306: 4299: 4292: 4284: 4282: 4278: 4277: 4275: 4274: 4267: 4260: 4253: 4246: 4238: 4236: 4232: 4231: 4224: 4222: 4220: 4219: 4212: 4205: 4198: 4190: 4188: 4184: 4183: 4176: 4174: 4173: 4166: 4159: 4151: 4141: 4137: 4136: 4133: 4132: 4130: 4129: 4124: 4119: 4114: 4109: 4103: 4101: 4097: 4096: 4093: 4092: 4090: 4089: 4082: 4079:Panhandle hook 4074: 4072: 4068: 4067: 4065: 4064: 4057: 4050: 4043: 4035: 4033: 4026: 4019: 4010: 4004: 4003: 4001: 4000: 3995: 3994: 3993: 3983: 3978: 3973: 3968: 3963: 3958: 3952: 3950: 3946: 3945: 3940: 3938: 3937: 3930: 3923: 3915: 3906: 3905: 3903: 3902: 3888: 3873: 3870: 3869: 3866: 3865: 3862: 3861: 3858: 3857: 3855: 3854: 3849: 3844: 3839: 3833: 3831: 3827: 3826: 3824: 3823: 3818: 3813: 3812: 3811: 3806: 3801: 3791: 3786: 3785: 3784: 3779: 3774: 3763: 3761: 3754: 3748: 3747: 3745: 3744: 3743: 3742: 3732: 3727: 3721: 3719: 3713: 3712: 3710: 3709: 3704: 3698: 3696: 3687: 3681: 3680: 3677: 3676: 3674: 3673: 3668: 3663: 3658: 3652: 3650: 3646: 3645: 3642: 3641: 3638: 3637: 3635: 3634: 3627: 3620: 3613: 3605: 3603: 3597: 3596: 3594: 3593: 3586: 3579: 3572: 3567: 3560: 3559: 3558: 3543: 3541: 3532: 3520: 3519: 3517: 3516: 3511: 3506: 3501: 3496: 3490: 3488: 3482: 3481: 3478: 3477: 3474: 3473: 3471: 3470: 3465: 3459: 3457: 3453: 3452: 3450: 3449: 3444: 3438: 3436: 3429: 3423: 3422: 3419: 3418: 3416: 3415: 3410: 3404: 3402: 3398: 3397: 3395: 3394: 3389: 3384: 3379: 3373: 3371: 3367: 3366: 3363: 3362: 3360: 3359: 3354: 3349: 3343: 3341: 3337: 3336: 3333: 3332: 3330: 3329: 3322: 3314: 3312: 3308: 3307: 3305: 3304: 3297: 3290: 3283: 3276: 3269: 3262: 3255: 3248: 3241: 3234: 3227: 3220: 3213: 3206: 3199: 3192: 3185: 3178: 3171: 3168:Christina 2014 3164: 3157: 3150: 3143: 3136: 3129: 3122: 3115: 3108: 3101: 3094: 3087: 3080: 3073: 3066: 3059: 3052: 3044: 3042: 3038: 3037: 3035: 3034: 3027: 3020: 3013: 3006: 2999: 2992: 2985: 2978: 2971: 2964: 2957: 2950: 2943: 2940:Quimburga 1972 2936: 2929: 2922: 2915: 2908: 2901: 2893: 2891: 2887: 2886: 2884: 2883: 2876: 2869: 2862: 2855: 2847: 2845: 2841: 2840: 2833: 2831: 2829: 2828: 2821: 2814: 2807: 2799: 2797: 2793: 2792: 2785: 2783: 2782: 2775: 2768: 2760: 2750: 2746: 2745: 2742: 2741: 2739: 2738: 2733: 2728: 2723: 2718: 2712: 2710: 2706: 2705: 2702: 2701: 2699: 2698: 2691: 2688:Panhandle hook 2683: 2681: 2677: 2676: 2674: 2673: 2666: 2659: 2652: 2644: 2642: 2635: 2628: 2619: 2613: 2612: 2610: 2609: 2604: 2603: 2602: 2592: 2587: 2582: 2577: 2572: 2567: 2561: 2559: 2555: 2554: 2549: 2547: 2546: 2539: 2532: 2524: 2517: 2516: 2514: 2513: 2508: 2502: 2500: 2491: 2482: 2479:Synoptic scale 2471: 2465: 2464: 2461: 2460: 2458: 2457: 2452: 2447: 2442: 2437: 2432: 2426: 2424: 2420: 2419: 2417: 2416: 2411: 2406: 2401: 2396: 2391: 2386: 2380: 2378: 2371: 2365: 2364: 2362: 2361: 2356: 2351: 2346: 2341: 2336: 2331: 2326: 2321: 2316: 2311: 2305: 2303: 2299: 2298: 2292:of the world ( 2284: 2282: 2281: 2274: 2267: 2259: 2252: 2251: 2241:. WONDEROPOLIS 2226: 2197: 2173: 2149: 2118: 2089: 2070: 2050: 2022: 1994: 1964: 1943: 1902: 1883:(1999-08-11). 1872: 1836: 1806: 1792: 1778: 1755: 1712: 1683:(3): 550–561. 1663: 1657:Annals of the 1643: 1620: 1591: 1561: 1540: 1520: 1507: 1491: 1465: 1435: 1405: 1388:(2004-08-13). 1377: 1360:(2009-02-06). 1338: 1310: 1303: 1277: 1258:weather.ou.edu 1241: 1228: 1205: 1182: 1146: 1126:"Polar vortex" 1116: 1083: 1050: 1029:(5): 527–530. 1009: 984: 973:meted.ucar.edu 960: 930: 900: 875: 855:"Cyclogenesis" 846: 826:"Cyclogenesis" 817: 790: 756: 754: 751: 750: 749: 744: 739: 734: 729: 724: 719: 714: 707: 704: 676:Atlantic Ocean 650:caused by the 648:Coriolis force 602: 599: 555: 552: 517:monsoon trough 511:Monsoon trough 498: 497:Monsoon trough 495: 479:Sonoran Desert 466:70th parallels 424:occluded front 412: 409: 407: 404: 305:weather fronts 297:polar cyclones 276:synoptic scale 248:Main article: 245: 242: 172:monsoon trough 138: 137: 130: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 4918: 4907: 4904: 4902: 4899: 4897: 4894: 4892: 4889: 4887: 4884: 4883: 4881: 4874: 4860: 4857: 4855: 4852: 4851: 4849: 4845: 4839: 4836: 4834: 4831: 4830: 4828: 4824: 4821: 4815: 4805: 4802: 4800: 4797: 4796: 4794: 4790: 4784: 4781: 4779: 4776: 4774: 4771: 4769: 4766: 4765: 4763: 4759: 4749: 4746: 4744: 4743:Icelandic Low 4741: 4739: 4736: 4735: 4733: 4729: 4718: 4714: 4711: 4707: 4706: 4704: 4700: 4693: 4689: 4686: 4682: 4679: 4675: 4672: 4668: 4665: 4661: 4658: 4654: 4651: 4647: 4644: 4640: 4637: 4633: 4630: 4626: 4623: 4619: 4616: 4612: 4609: 4605: 4602: 4598: 4595: 4591: 4588: 4584: 4581: 4577: 4574: 4570: 4567: 4563: 4560: 4556: 4553: 4549: 4546: 4542: 4539: 4535: 4532: 4528: 4525: 4521: 4518: 4514: 4511: 4507: 4504: 4500: 4497: 4493: 4490: 4486: 4483: 4479: 4476: 4472: 4469: 4465: 4462: 4458: 4455: 4451: 4448: 4444: 4441: 4437: 4436: 4434: 4430: 4423: 4419: 4416: 4412: 4409: 4405: 4402: 4398: 4395: 4391: 4388: 4384: 4381: 4377: 4374: 4370: 4367: 4363: 4360: 4356: 4353: 4349: 4346: 4342: 4339: 4335: 4332: 4328: 4325: 4321: 4318: 4314: 4311: 4307: 4304: 4300: 4297: 4293: 4290: 4286: 4285: 4283: 4279: 4272: 4268: 4265: 4261: 4258: 4254: 4251: 4247: 4244: 4240: 4239: 4237: 4233: 4228: 4217: 4213: 4210: 4206: 4203: 4199: 4196: 4192: 4191: 4189: 4185: 4180: 4172: 4167: 4165: 4160: 4158: 4153: 4152: 4149: 4145: 4142: 4138: 4128: 4125: 4123: 4120: 4118: 4115: 4113: 4110: 4108: 4105: 4104: 4102: 4098: 4087: 4086:November gale 4083: 4080: 4076: 4075: 4073: 4069: 4062: 4058: 4055: 4051: 4048: 4044: 4041: 4037: 4036: 4034: 4030: 4027: 4023: 4020: 4017:North America 4014: 4011: 4005: 3999: 3996: 3992: 3989: 3988: 3987: 3984: 3982: 3979: 3977: 3974: 3972: 3969: 3967: 3964: 3962: 3959: 3957: 3954: 3953: 3951: 3947: 3943: 3936: 3931: 3929: 3924: 3922: 3917: 3916: 3913: 3901: 3900: 3889: 3887: 3886: 3875: 3874: 3871: 3853: 3850: 3848: 3845: 3843: 3840: 3838: 3835: 3834: 3832: 3828: 3822: 3819: 3817: 3814: 3810: 3807: 3805: 3802: 3800: 3797: 3796: 3795: 3792: 3790: 3787: 3783: 3780: 3778: 3775: 3773: 3770: 3769: 3768: 3765: 3764: 3762: 3758: 3755: 3753: 3749: 3741: 3738: 3737: 3736: 3733: 3731: 3728: 3726: 3723: 3722: 3720: 3718: 3714: 3708: 3705: 3703: 3702:Catalina eddy 3700: 3699: 3697: 3695: 3691: 3688: 3686: 3682: 3672: 3669: 3667: 3664: 3662: 3659: 3657: 3656:Cold-core low 3654: 3653: 3651: 3647: 3632: 3628: 3625: 3621: 3618: 3614: 3611: 3607: 3606: 3604: 3598: 3591: 3587: 3584: 3580: 3577: 3573: 3571: 3568: 3565: 3561: 3556: 3552: 3551: 3549: 3545: 3544: 3542: 3536: 3533: 3530: 3525: 3521: 3515: 3512: 3510: 3507: 3505: 3502: 3500: 3497: 3495: 3492: 3491: 3489: 3487: 3483: 3469: 3466: 3464: 3461: 3460: 3458: 3454: 3448: 3445: 3443: 3440: 3439: 3437: 3433: 3430: 3424: 3414: 3411: 3409: 3406: 3405: 3403: 3399: 3393: 3390: 3388: 3385: 3383: 3380: 3378: 3375: 3374: 3372: 3368: 3358: 3355: 3353: 3352:Icelandic Low 3350: 3348: 3345: 3344: 3342: 3338: 3327: 3323: 3320: 3316: 3315: 3313: 3309: 3302: 3298: 3295: 3291: 3288: 3284: 3281: 3277: 3274: 3270: 3267: 3263: 3260: 3256: 3253: 3249: 3246: 3242: 3239: 3235: 3232: 3228: 3225: 3221: 3218: 3214: 3211: 3207: 3204: 3200: 3197: 3193: 3190: 3186: 3183: 3179: 3176: 3172: 3169: 3165: 3162: 3158: 3155: 3151: 3148: 3144: 3141: 3137: 3134: 3130: 3127: 3123: 3120: 3116: 3113: 3109: 3106: 3102: 3099: 3095: 3092: 3088: 3085: 3081: 3078: 3074: 3071: 3067: 3064: 3060: 3057: 3053: 3050: 3046: 3045: 3043: 3039: 3032: 3028: 3025: 3021: 3018: 3014: 3011: 3007: 3004: 3000: 2997: 2993: 2990: 2986: 2983: 2979: 2976: 2972: 2969: 2965: 2962: 2958: 2955: 2951: 2948: 2944: 2941: 2937: 2934: 2930: 2927: 2923: 2920: 2916: 2913: 2909: 2906: 2902: 2899: 2895: 2894: 2892: 2888: 2881: 2877: 2874: 2870: 2867: 2863: 2860: 2856: 2853: 2849: 2848: 2846: 2842: 2837: 2826: 2822: 2819: 2815: 2812: 2808: 2805: 2801: 2800: 2798: 2794: 2789: 2781: 2776: 2774: 2769: 2767: 2762: 2761: 2758: 2754: 2751: 2747: 2737: 2734: 2732: 2729: 2727: 2724: 2722: 2719: 2717: 2714: 2713: 2711: 2707: 2696: 2695:November gale 2692: 2689: 2685: 2684: 2682: 2678: 2671: 2667: 2664: 2660: 2657: 2653: 2650: 2646: 2645: 2643: 2639: 2636: 2632: 2629: 2626:North America 2623: 2620: 2614: 2608: 2605: 2601: 2598: 2597: 2596: 2593: 2591: 2588: 2586: 2583: 2581: 2578: 2576: 2573: 2571: 2568: 2566: 2563: 2562: 2560: 2556: 2552: 2545: 2540: 2538: 2533: 2531: 2526: 2525: 2522: 2518: 2512: 2509: 2507: 2504: 2503: 2501: 2499: 2495: 2492: 2489:Surface-based 2486: 2483: 2480: 2475: 2472: 2470: 2466: 2456: 2453: 2451: 2448: 2446: 2445:Kalahari High 2443: 2441: 2438: 2436: 2433: 2431: 2428: 2427: 2425: 2421: 2415: 2412: 2410: 2407: 2405: 2402: 2400: 2397: 2395: 2392: 2390: 2389:Siberian High 2387: 2385: 2382: 2381: 2379: 2375: 2372: 2370: 2366: 2360: 2357: 2355: 2352: 2350: 2347: 2345: 2342: 2340: 2337: 2335: 2332: 2330: 2327: 2325: 2322: 2320: 2317: 2315: 2312: 2310: 2307: 2306: 2304: 2300: 2295: 2291: 2287: 2280: 2275: 2273: 2268: 2266: 2261: 2260: 2257: 2240: 2236: 2230: 2227: 2216: 2215:HowStuffWorks 2212: 2208: 2201: 2198: 2187: 2183: 2177: 2174: 2163: 2159: 2153: 2150: 2139: 2135: 2131: 2125: 2123: 2119: 2108: 2104: 2100: 2093: 2090: 2086: 2083: 2077: 2075: 2071: 2067: 2063: 2060: 2057:BWEA (2007). 2054: 2051: 2039: 2032: 2026: 2023: 2012: 2008: 2004: 1998: 1995: 1984:on 2009-03-18 1983: 1979: 1975: 1968: 1965: 1954: 1947: 1944: 1938: 1933: 1929: 1925: 1921: 1917: 1913: 1906: 1903: 1892: 1891: 1886: 1882: 1876: 1873: 1862:on 2011-07-21 1858: 1854: 1847: 1840: 1837: 1826:on 2012-05-26 1825: 1821: 1817: 1816:"Hadley Cell" 1810: 1807: 1802: 1796: 1793: 1788: 1782: 1779: 1775: 1771: 1768: 1764: 1759: 1756: 1751: 1747: 1743: 1739: 1735: 1731: 1727: 1723: 1716: 1713: 1708: 1704: 1699: 1694: 1690: 1686: 1682: 1678: 1674: 1667: 1664: 1660: 1656: 1650: 1648: 1644: 1640: 1637: 1633: 1630: 1624: 1621: 1609: 1605: 1601: 1595: 1592: 1581:on 2011-05-05 1580: 1576: 1572: 1565: 1562: 1558: 1554: 1550: 1544: 1541: 1537: 1533: 1530: 1524: 1521: 1517: 1511: 1508: 1504: 1498: 1496: 1492: 1488: 1485: 1481: 1478: 1472: 1470: 1466: 1455:on 2008-06-17 1454: 1450: 1446: 1439: 1436: 1425:on 2006-07-09 1424: 1420: 1416: 1415:"Mesocyclone" 1409: 1406: 1395: 1391: 1387: 1386:Chris Landsea 1381: 1378: 1367: 1363: 1359: 1358:Chris Landsea 1353: 1351: 1349: 1347: 1345: 1343: 1339: 1328: 1324: 1320: 1314: 1311: 1306: 1300: 1296: 1291: 1290: 1281: 1278: 1267:on 2006-09-01 1263: 1259: 1252: 1245: 1242: 1238: 1232: 1229: 1225: 1222: 1218: 1215: 1209: 1206: 1202: 1199: 1195: 1192: 1186: 1183: 1172:on 2010-06-26 1168: 1164: 1157: 1150: 1147: 1136:on 2011-01-09 1135: 1131: 1127: 1120: 1117: 1106:on 2011-05-14 1105: 1101: 1097: 1093: 1087: 1084: 1073:on 2010-12-31 1072: 1068: 1064: 1060: 1059:"Rossby wave" 1054: 1051: 1045: 1040: 1036: 1032: 1028: 1024: 1020: 1013: 1010: 999: 995: 988: 985: 974: 970: 964: 961: 950:on 2006-08-29 949: 945: 941: 934: 931: 920:on 2008-10-04 919: 915: 911: 904: 901: 890: 886: 879: 876: 864: 860: 856: 850: 847: 836:on 2006-08-30 835: 831: 827: 821: 818: 807: 806: 801: 794: 791: 780:on 2008-10-04 779: 775: 771: 767: 761: 758: 752: 748: 745: 743: 740: 738: 737:Tropical wave 735: 733: 730: 728: 725: 723: 720: 718: 715: 713: 710: 709: 705: 703: 701: 697: 693: 689: 685: 681: 680:Pacific Ocean 677: 673: 669: 665: 661: 657: 653: 649: 644: 642: 638: 634: 630: 626: 621: 617: 607: 600: 598: 596: 592: 587: 583: 579: 573: 565: 560: 553: 551: 549: 544: 540: 535: 534:20th parallel 531: 530:40th parallel 526: 522: 518: 512: 503: 496: 494: 492: 491:South America 488: 484: 480: 476: 471: 467: 463: 459: 455: 451: 447: 441: 437: 433: 425: 421: 417: 410: 405: 403: 401: 397: 393: 389: 384: 380: 375: 371: 366: 364: 360: 356: 351: 347: 343: 338: 334: 327: 322: 318: 316: 311: 306: 301: 298: 293: 289: 285: 281: 277: 273: 269: 265: 261: 257: 251: 243: 241: 239: 235: 234:British Isles 231: 227: 223: 219: 215: 211: 207: 204: 200: 196: 192: 188: 184: 179: 177: 173: 169: 165: 161: 157: 153: 149: 145: 143: 135: 131: 128: 124: 120: 116: 112: 108: 107: 106: 104: 100: 96: 92: 88: 84: 80: 76: 72: 68: 60: 55: 48: 43: 37: 33: 19: 4873: 4615:Herwart 2017 4608:Ophelia 2017 4531:St Jude 2013 4510:Joachim 2011 4489:Xynthia 2010 4447:Jeanett 2002 4432:21st century 4352:Charley 1986 4289:Ulysses 1903 4281:20th century 4235:19th century 4112:Hatteras low 4107:Aleutian Low 4047:Colorado low 3981:Weather bomb 3975: 3890: 3876: 3789:Funnel cloud 3707:Haida Eddies 3666:Polar vortex 3224:Herwart 2017 3217:Ophelia 2017 3140:St Jude 2013 3119:Joachim 2011 3098:Xynthia 2010 3056:Jeanett 2002 3041:21st century 2961:Charley 1986 2898:Ulysses 1903 2890:20th century 2844:19th century 2721:Hatteras low 2716:Aleutian Low 2656:Colorado low 2590:Weather bomb 2584: 2323: 2290:anticyclones 2243:. Retrieved 2238: 2229: 2218:. Retrieved 2210: 2200: 2189:. Retrieved 2186:pmm.nasa.gov 2185: 2176: 2165:. Retrieved 2161: 2152: 2141:. Retrieved 2133: 2110:. Retrieved 2102: 2092: 2053: 2042:. Retrieved 2040:. 2003-10-08 2037: 2025: 2014:. Retrieved 1997: 1986:. Retrieved 1982:the original 1967: 1956:. Retrieved 1946: 1919: 1915: 1905: 1894:. Retrieved 1888: 1875: 1864:. Retrieved 1857:the original 1839: 1828:. Retrieved 1824:the original 1809: 1795: 1781: 1758: 1725: 1721: 1715: 1680: 1676: 1666: 1623: 1612:. Retrieved 1608:the original 1594: 1583:. Retrieved 1579:the original 1571:"Gust Front" 1564: 1543: 1523: 1510: 1477:Thermal Low. 1457:. Retrieved 1453:the original 1438: 1427:. Retrieved 1423:the original 1408: 1397:. Retrieved 1380: 1369:. Retrieved 1330:. Retrieved 1313: 1288: 1280: 1269:. Retrieved 1262:the original 1257: 1244: 1231: 1208: 1185: 1174:. Retrieved 1167:the original 1149: 1138:. Retrieved 1134:the original 1119: 1108:. Retrieved 1104:the original 1099: 1092:"Short wave" 1086: 1075:. Retrieved 1071:the original 1066: 1053: 1026: 1022: 1012: 1001:. Retrieved 987: 976:. Retrieved 972: 963: 952:. Retrieved 948:the original 933: 922:. Retrieved 918:the original 903: 892:. Retrieved 878: 867:. Retrieved 862: 849: 838:. Retrieved 834:the original 829: 820: 809:. Retrieved 803: 793: 782:. Retrieved 778:the original 773: 760: 692:Indian Ocean 645: 623: 575: 514: 475:Thermal lows 474: 443: 396:condensation 367: 355:Mesocyclones 331: 302: 292:Cyclogenesis 291: 280:mesocyclones 253: 250:Cyclogenesis 210:temperatures 180: 148:Thermal lows 146: 139: 99:cyclogenesis 78: 74: 70: 64: 4847:Other areas 4792:Other areas 4768:Asiatic Low 4692:Ciarán 2023 4678:Larisa 2023 4671:Eunice 2022 4657:Aurore 2021 4650:Dennis 2020 4636:Adrian 2018 4601:Xavier 2017 4573:Niklas 2015 4524:Andrea 2012 4517:Dagmar 2011 4468:Kyrill 2007 4454:Gudrun 2005 4440:Oratia 2000 4422:Martin 1999 4415:Lothar 1999 4408:Anatol 1999 4310:Debbie 1961 4296:Iberia 1941 4061:Bighorn Low 4032:Lee Cyclone 4025:Continental 3847:Steam devil 3767:Mesocyclone 3661:Cut-off low 3649:Upper level 3486:Subtropical 3456:Other areas 3401:Other areas 3377:Asiatic Low 3301:Ciarán 2023 3287:Larisa 2023 3280:Eunice 2022 3266:Aurore 2021 3259:Dennis 2020 3245:Adrian 2018 3210:Xavier 2017 3182:Niklas 2015 3133:Andrea 2012 3126:Dagmar 2011 3077:Kyrill 2007 3063:Gudrun 2005 3049:Oratia 2000 3031:Martin 1999 3024:Lothar 1999 3017:Anatol 1999 2919:Debbie 1961 2905:Iberia 1941 2670:Bighorn Low 2641:Lee Cyclone 2634:Continental 2394:Azores High 2369:Anticyclone 2134:OCEAN FACTS 1191:Short Wave. 802:. Weather. 747:Weather map 637:cold fronts 548:rainforests 525:Hadley cell 440:Thermal low 406:Climatology 379:thermal low 359:Waterspouts 346:troposphere 326:Hadley cell 310:polar front 238:Netherlands 224:and in the 201:, incoming 183:cloud cover 162:help drive 142:troposphere 125:with large 117:within the 115:Rossby wave 103:meteorology 67:meteorology 4880:Categories 4804:Kona storm 4685:Babet 2023 4664:Malik 2022 4643:Ciara 2020 4538:Xaver 2013 4496:Berit 2011 4482:Klaus 2009 4117:Nor'easter 3852:Fire whirl 3842:Dust devil 3821:Waterspout 3782:Wall cloud 3494:Kona storm 3413:Kona storm 3294:Babet 2023 3273:Malik 2022 3252:Ciara 2020 3147:Xaver 2013 3105:Berit 2011 3091:Klaus 2009 2726:Nor'easter 2349:Superstorm 2245:2016-12-25 2220:2016-12-25 2191:2020-02-24 2167:2020-02-24 2143:2016-12-24 2112:2016-12-24 2044:2007-08-18 2016:2009-12-24 1988:2009-03-08 1958:2006-11-26 1896:2008-05-03 1866:2008-05-03 1830:2009-02-16 1763:Met Office 1614:2008-05-22 1585:2008-07-09 1459:2009-12-26 1429:2006-12-07 1399:2006-07-25 1371:2009-12-31 1332:2007-03-23 1271:2006-10-11 1176:2009-10-26 1156:"QG Notes" 1140:2009-12-24 1110:2009-11-06 1077:2009-11-06 1003:2006-10-03 978:2006-10-24 954:2006-10-24 924:2008-09-17 894:2008-09-17 869:2009-02-21 840:2009-02-21 811:2009-02-16 784:2009-03-02 753:References 656:hurricanes 633:air masses 614:See also: 570:See also: 539:continents 509:See also: 430:See also: 363:wind shear 350:wind shear 284:polar lows 260:cyclolysis 160:continents 127:wavelength 119:Westerlies 95:atmosphere 4859:Sudestada 4826:Australia 4748:Genoa low 4594:Zeus 2017 4580:Egon 2017 4566:Tini 2014 4552:Anne 2014 4545:Dirk 2013 4475:Emma 2008 4387:Lili 1996 3986:Sting jet 3816:Landspout 3772:Supercell 3752:Whirlwind 3685:Mesoscale 3468:Sudestada 3435:Australia 3357:Genoa low 3203:Zeus 2017 3189:Egon 2017 3175:Tini 2014 3161:Anne 2014 3154:Dirk 2013 3084:Emma 2008 2996:Lili 1996 2595:Sting jet 2354:Hypercane 1885:"Monsoon" 1750:129364159 1707:1520-0442 940:"Cyclone" 910:"Cyclone" 830:nsidc.org 805:USA Today 766:"Cyclone" 700:Tornadoes 668:hurricane 446:Antarctic 288:mesoscale 244:Formation 203:shortwave 191:dew point 75:low area 47:Australia 4901:Vortices 4702:See also 4461:Per 2007 4122:Gulf low 3998:Rainband 3949:Concepts 3837:Gustnado 3730:Mesohigh 3725:Wake Low 3524:Tropical 3311:See also 3070:Per 2007 2731:Gulf low 2607:Rainband 2558:Concepts 2302:Concepts 2286:Cyclones 2062:Archived 1770:Archived 1765:(2009). 1632:Archived 1532:Archived 1480:Archived 1217:Archived 1194:Archived 706:See also 664:typhoons 660:cyclones 420:QuikSCAT 388:rainfall 256:cyclonic 199:sunlight 185:through 4100:Oceanic 3966:Cyclone 3794:Tornado 3570:Typhoon 3529:Outline 3514:Thermal 2709:Oceanic 2575:Cyclone 2469:Cyclone 1924:Bibcode 1730:Bibcode 1685:Bibcode 1031:Bibcode 684:typhoon 629:density 610:arrows. 543:monsoon 383:Monsoon 370:deserts 272:cyclone 228:of the 164:monsoon 111:troughs 59:Iceland 4799:Arctic 4140:Europe 3408:Arctic 2749:Europe 1748:  1705:  1555:  1301:  662:, and 487:Sahara 485:, the 481:, the 448:. The 438:, and 282:, and 123:trough 4731:Other 4071:Other 3961:Storm 3830:Minor 3760:Major 3340:Other 2680:Other 2570:Storm 2498:Polar 2314:Storm 2034:(PDF) 1860:(PDF) 1849:(PDF) 1746:S2CID 1265:(PDF) 1254:(PDF) 1170:(PDF) 1159:(PDF) 672:storm 670:is a 652:Earth 595:Earth 218:winds 156:Earth 101:. In 4761:Asia 3991:List 3370:Asia 2600:List 2288:and 1703:ISSN 1553:ISBN 1449:NOAA 1327:NOAA 1299:ISBN 682:, a 646:The 625:Wind 618:and 580:and 564:Megi 464:and 462:30th 236:and 69:, a 1932:doi 1920:110 1738:doi 1693:doi 1600:BBC 1295:612 1039:doi 593:on 519:or 368:In 226:lee 121:(a 79:low 77:or 65:In 4882:: 2237:. 2213:. 2209:. 2184:. 2160:. 2136:. 2132:. 2121:^ 2105:. 2101:. 2073:^ 2036:. 2009:. 1976:. 1930:. 1918:. 1914:. 1887:. 1851:. 1818:. 1744:. 1736:. 1726:17 1724:. 1701:. 1691:. 1681:13 1679:. 1675:. 1646:^ 1573:. 1494:^ 1468:^ 1447:. 1417:. 1392:. 1364:. 1341:^ 1325:. 1297:. 1256:. 1161:. 1128:. 1098:. 1094:. 1065:. 1061:. 1037:. 1027:56 1025:. 1021:. 996:. 971:. 942:. 912:. 887:. 861:. 857:. 828:. 772:. 768:. 658:, 597:. 489:, 434:, 381:. 365:. 73:, 61:. 4170:e 4163:t 4156:v 3934:e 3927:t 3920:v 3531:) 3527:( 2779:e 2772:t 2765:v 2543:e 2536:t 2529:v 2296:) 2278:e 2271:t 2264:v 2248:. 2223:. 2194:. 2170:. 2146:. 2115:. 2047:. 2019:. 1991:. 1961:. 1940:. 1934:: 1926:: 1899:. 1869:. 1833:. 1803:. 1789:. 1752:. 1740:: 1732:: 1709:. 1695:: 1687:: 1617:. 1588:. 1462:. 1432:. 1402:. 1374:. 1335:. 1307:. 1274:. 1179:. 1143:. 1113:. 1080:. 1047:. 1041:: 1033:: 1006:. 981:. 957:. 927:. 897:. 872:. 843:. 814:. 787:. 426:. 266:— 38:. 20:)

Index

Low pressure system
Pressure system
High-pressure area

Australia

Iceland
meteorology
atmospheric pressure
high-pressure areas
Coriolis forces
atmosphere
cyclogenesis
meteorology
troughs
Rossby wave
Westerlies
trough
wavelength
embedded shortwave troughs
troposphere
Thermal lows
solar incidence
Earth
continents
monsoon
Intertropical Convergence Zone
monsoon trough
tropical cyclone
cloud cover

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