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79:. Drafts can also be caused by low or high pressure regions. A low pressure region will attract air from the surrounding area, which will move towards the center and then rise, creating an updraft. A high pressure region will attract air from the surrounding area, which will move towards the center and sink, spawning a
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Vertical drafts, known as updrafts or downdrafts, are localized regions of warm or cool air that move vertically. A mass of warm air will typically be less dense than the surrounding region, and so will rise until it reaches air that is either warmer or less dense than itself. The converse will occur
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which occurs through chimneys which have fireplaces on the lowermost levels (such as basements) of multi-level buildings. It involves cold air coming down the chimney due to low air pressure, and makes it hard to light fires, and can push soot and
114:. Downburst damage can be differentiated from that of a tornado because the resulting destruction is circular and radiates away from the center. Tornado damage radiates inward, towards the center of the damage.
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in general, are a major contributor to airplane crashes during takeoff and landing in a thunderstorm. Extreme cases, known as
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Warm, moist updraft from a thunderstorm associated with a southward-moving frontal boundary - taken from
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and microbursts, can be deadly and difficult to predict or observe. The crash of
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in 1985 was presumably caused by a microburst, and prompted the
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181:— airplane crash linked to severe downdraft
117:The term "downdraft" can also refer to a type of
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265:National Science Digital Library - Downdraft
217:A Dictionary of Environment and Conservation
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98:on its final approach before landing at
67:for a mass of cool air, and is known as
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100:Dallas/Fort Worth International Airport
58:of rising air, often within a cloud.
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231:10.1093/acref/9780198609957.001.0001
86:Updrafts and downdrafts, along with
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27:Small-scale current of rising air
164:Low level windshear alert system
104:Federal Aviation Administration
75:, and is the central source of
136:Terminal Doppler Weather Radar
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723:Severe weather and convection
662:Potentially hazardous object
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169:Atmospheric thermodynamics
96:Delta Air Lines Flight 191
270:the Microburst Windshear
158:National Weather Service
223:Oxford University Press
189:forward flank downdraft
221:(1 ed.). Oxford:
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140:Doppler weather radar
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713:Aviation meteorology
213:Park, Chris (2007).
185:Rear flank downdraft
718:Gliding meteorology
54:) is a small-scale
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387:Soil liquefaction
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16:(Redirected from
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397:Volcano eruption
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667:Impact event
655:Astronomical
589:Thunderstorm
584:Bomb cyclone
448:Hydrological
417:Volcanic ash
382:Seismic risk
330:Mass wasting
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244:. Retrieved
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146:) and abroad
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682:Solar flare
568:Megadrought
528:Temperature
501:Megatsunami
480:Storm surge
475:Flash flood
353:Debris flow
44:meteorology
707:Categories
363:Earthquake
321:Geological
200:References
108:air safety
92:downbursts
88:wind shear
69:subsidence
52:up-draught
692:Hypernova
687:Supernova
635:Firestorm
550:Heat wave
545:Ice storm
540:Cold wave
343:Avalanche
338:Landslide
246:14 August
174:Lee waves
119:backdraft
112:tornadoes
81:downdraft
18:Downdraft
642:ARkStorm
630:Wildfire
535:Blizzard
435:Sinkhole
130:See also
62:Overview
625:Derecho
599:Tornado
560:Drought
496:Tsunami
348:Mudflow
194:Thermal
56:current
48:updraft
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150:NEXRAD
73:clouds
618:Other
489:Other
456:Flood
410:Lahar
46:, an
593:Hail
461:List
368:List
248:2014
235:ISBN
187:and
154:NOAA
227:doi
156:'s
144:FAA
42:In
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