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20 NM- WATERS FROM CAPE BLANCO OR TO PT. ST. GEORGE CA FROM 20 TO 60 NM- 230 PM PDT FRI OCT 3 2008 ...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 5 AM PDT SUNDAY... ...GALE WARNING REMAINS IN EFFECT UNTIL 2 AM PDT SATURDAY... THE HAZARDOUS SEAS WARNING IS NOW IN EFFECT UNTIL 5 AM PDT SUNDAY. A GALE WARNING REMAINS IN EFFECT UNTIL 2 AM PDT SATURDAY. A STRONG FRONT MOVING THROUGH THE WATERS TODAY WILL BRING SOUTH WINDS OF 35 TO 40 KT WITH OCCASIONAL GUSTS NEAR 50 KT TO THE AREA. HIGHER GUSTS UP TO 55 KT ARE EXPECTED AROUND CAPE BLANCO. THESE WINDS WILL PERSIST THROUGH THE LATE EVENING... THEN WILL SHIFT SOUTHWEST AND GRADUALLY EASE TO 20 TO 30 KT LATE TONIGHT. AS THE WINDS INCREASE...COMBINED SEAS WILL BUILD TO 12 TO 15 FEET AT 8 SECONDS. THEN ON SATURDAY...WESTERLY SWELLS OF 15 TO 16 FEET AT 12 SECONDS WILL ARRIVE..DECREASING TO 9 TO 11 FEET SUNDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A GALE WARNING MEANS THAT CONDITIONS WILL BE HAZARDOUS TO COMMERCIAL VESSELS AND EXTREMELY HAZARDOUS TO SMALL CRAFT. A HAZARDOUS SEAS WARNING MEANS THAT WAVES WITH EXTREME STEEPNESS ARE IMMINENT OR OCCURRING. AREAS THAT ARE PRONE TO SHOALING WILL BE VERY DANGEROUS. && $ $
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133 WHUS76 KMFR 032130 MWWMFR URGENT - MARINE WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 230 PM PDT FRI OCT 3 2008 PZZ356-376-041030- /O.EXT.KMFR.SE.W.0039.000000T0000Z-081005T1200Z/ /O.CON.KMFR.GL.W.0035.000000T0000Z-081004T0900Z/ COASTAL WATERS FROM CAPE BLANCO OR TO PT. ST. GEORGE CA OUT
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when wave heights and/or wave steepness values reach certain criteria. These criteria are defined by the local forecast office. Such tall waves can pose a serious threat to vessels that do not seek shelter.
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The following is an example of a
Hazardous Seas Warning issued by the National Weather Service office in
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58:Severe weather terminology (United States)
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613:Tropical depression local statement
83:Glossary - National Weather Service
16:Weather warning for dangerous waves
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1466:Weather warnings and advisories
608:Tropical storm local statement
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1070:Heavy freezing spray warning
780:Urban and small stream flood
1173:Major hurricane-force winds
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1065:Heavy freezing spray watch
169:Severe weather terminology
103:National Weather Service.
77:National Weather Service.
1416:Hazardous weather outlook
1406:Special weather statement
603:Hurricane local statement
1411:Severe weather statement
1083:Marine weather statement
133:National Weather Service
105:"Hazardous Seas Warning"
79:"Hazardous Seas Warning"
25:National Weather Service
1294:Air stagnation advisory
1093:Beach hazards statement
1060:Freezing spray advisory
296:Winter weather advisory
830:Excessive heat warning
427:Freezing rain advisory
267:Special marine warning
21:Hazardous Seas Warning
1445:Information statement
1359:Volcanic ash advisory
1211:Blowing dust advisory
1088:Rip current statement
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329:Blizzard/blowing snow
1389:Saffir–Simpson scale
1331:Evacuation immediate
1253:Dense smoke advisory
1216:Blowing dust warning
1180:Extreme wind warning
1133:Advisory-force winds
1011:Hurricane-force wind
948:Small craft advisory
825:Excessive heat watch
1391:(tropical cyclones)
953:Brisk wind advisory
905:Hard freeze warning
260:Marine thunderstorm
1336:Fire weather watch
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1226:Dust storm warning
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1326:Fire warning
1196:particulates
1152:-force winds
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941:Marine winds
872:Extreme cold
306:Winter storm
190:Thunderstorm
112:. Retrieved
108:
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86:. Retrieved
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72:
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20:
18:
1385:(tornadoes)
1370:used by NWS
863:PDS warning
803:temperature
754:River flood
658:Flash flood
577:Storm surge
401:Snow squall
246:PDS warning
840:Wind chill
812:Heat index
508:Hurricanes
356:Heavy snow
289:Advisories
64:References
1204:Dust/sand
1102:High surf
745:Statement
714:Statement
681:Emergency
671:PDS watch
442:Avalanche
251:Emergency
236:PDS watch
208:PDS watch
1460:Category
1440:Advisory
1377:Beaufort
1346:Aviation
1194:Airborne
928:Maritime
848:Advisory
801:Apparent
787:Advisory
761:Advisory
735:Advisory
699:Advisory
649:Advisory
554:Cyclones
531:Typhoons
476:cyclones
474:Tropical
460:Advisory
381:Advisory
198:Advisory
52:See also
1435:Warning
1425:Tsunami
1044:Warning
1018:Warning
1002:Warning
981:Warning
934:weather
932:coastal
900:Warning
879:Warning
858:Warning
771:Warning
730:Warning
709:Warning
676:Warning
644:Warning
590:Warning
567:Warning
544:Warning
521:Warning
498:Warning
450:Warning
409:Warning
391:Warning
363:Warning
319:Warning
282:weather
241:Warning
223:Tornado
213:Warning
171:in the
36:Example
27:of the
1379:(wind)
1354:SIGMET
888:Freeze
280:Winter
182:storms
180:Severe
114:20 May
88:20 May
1431:Watch
1399:Other
1240:Smoke
1039:Watch
1023:Watch
997:Watch
990:Storm
976:Watch
895:Watch
853:Watch
766:Watch
740:Watch
704:Watch
666:Watch
639:Watch
632:Flood
623:Flood
585:Watch
562:Watch
539:Watch
516:Watch
493:Watch
455:Watch
386:Watch
314:Watch
231:Watch
203:Watch
1313:Fire
1150:Gale
1126:Wind
968:Gale
116:2011
90:2011
1263:Ash
1236:Fog
930:and
419:Ice
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19:A
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161:e
154:t
147:v
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.