| 词条 | Special weather statement |
| 释义 |
A Special Weather Statement (Codename SPS with FEMA and National Weather Service) is a form of weather advisory. Special Weather Statements are issued by the National Weather Service of the United States (the NWS) and the Meteorological Service of Canada (the MSC). There are no set criteria for special weather statements in either country. United StatesA Special Weather Statement may be issued by the NWS for hazards that have not yet reached warning or advisory status or that do not have a specific code of their own, such as widespread funnel clouds. They are also occasionally used to clear counties from severe weather watches.[1] A common form of special weather statement is a significant weather alert. Occasionally special weather statements appear as heat advisories. An EAS activation can and may be requested on very rare occasions. United States: Other UsesSpecial Weather Statements may also be issued for possible fire weather conditions, such as an enhanced risk. They even can be issued for rain/snow that may hit Advisory criteria such as snow being one inch that isn't going to likely pose a threat. Sometimes Special Weather Statements may be issued to update on current weather conditions, but that is sometimes issued by a Short Term Forecast. Examples of an American Special Weather StatementSpecial Weather StatementNational Weather Service New York NY754 AM EDT Thu May 3 2018NJZ004-006-103>108-NYZ072>075-176-178-032200-Eastern Passaic-Hudson-Western Bergen-Eastern Bergen-Western Essex-Eastern Essex-Western Union-Eastern Union-New York (Manhattan)-Bronx-Richmond (Staten Island)-Kings (Brooklyn)-Northern Queens-Southern Queens-754 AM EDT Thu May 3 2018Relative humidity will fall to 30-35 percent late this morningthrough this afternoon across much of New York City and NortheastNew Jersey. These low relative humidity values combined withsouthwest winds gusting to 25-30 mph will result in an enhancedrisk for fire spread across these areas. Relative humidity valuesare expected to increase and gusts diminish by this evening.For more information on wildfire danger, prevention andeducation, please visit your state forestry or environmentalprotection website.$$ SPECIAL WEATHER STATEMENTNATIONAL WEATHER SERVICE BISMARCK ND1022 PM CDT WED SEP 30 2015NDZ012-021-010400-MCHENRY ND-MCLEAN ND-1022 PM CDT WED SEP 30 2015...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN MCLEAN AND SOUTHCENTRAL MCHENRY COUNTIES...AT 1021 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 11MILES SOUTHEAST OF BENEDICT...OR 25 MILES EAST OF GARRISON...MOVINGNORTHEAST AT 15 MPH.PENNY SIZE HAIL WILL BE POSSIBLE WITH THIS STORM.LOCATIONS IMPACTED INCLUDE...BUTTE...RUSO AND STRAWBERRY LAKE.FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFESHELTER INSIDE A BUILDING OR VEHICLE.&&LAT...LON 4785 10054 4785 10058 4770 10059 4764 10092 4778 10105 4793 10073TIME...MOT...LOC 0321Z 244DEG 14KT 4774 10088$$ABELING SPECIAL WEATHER STATEMENTNATIONAL WEATHER SERVICE LITTLE ROCK AR426 PM CDT WED APR 27 2011ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-280015-ARKANSAS-BAXTER-BOONE-BRADLEY-CALHOUN-CLARK-CLEBURNE-CLEVELAND-CONWAY-DALLAS-DESHA-DREW-FAULKNER-FULTON-GARLAND-GRANT-HOT SPRING-INDEPENDENCE-IZARD-JACKSON-JEFFERSON-JOHNSON-LINCOLN-LOGAN-LONOKE-MARION-MONROE-MONTGOMERY-NEWTON-OUACHITA-PERRY-PIKE-POLK-POPE-PRAIRIE-PULASKI-SALINE-SCOTT-SEARCY-SHARP-STONE-VAN BUREN-WHITE-WOODRUFF-YELL-INCLUDING THE CITIES OF...ALTHEIMER...AMITY...ARKADELPHIA...ARKANSAS CITY...ASH FLAT...AUGUSTA...AVILLA...BATESVILLE...BAUXITE...BEARDEN...BEE BRANCH...BEEBE...BENTON...BISMARCK...BONNERDALE...BOONEVILLE...BRINKLEY...BRYANT...BULL SHOALS...CABOT...CALICO ROCK...CAMDEN...CAVE CITY...CENTER RIDGE...CHIDESTER...CLARENDON...CLARKSVILLE...CLINTON...CONWAY...COTTON PLANT...DANVILLE...DARDANELLE...DE VALLS BLUFF...DE WITT...DEER...DES ARC...DONALDSON...DRASCO...DUMAS...EL PASO...ENGLAND...FAIRFIELD BAY...FLIPPIN...FORDYCE...FOURCHE JUNCTION...GASSVILLE...GEORGETOWN...GILLETT...GLENWOOD...GOULD...GRADY...GRAVELLY...GREENBRIER...GREERS FERRY...GURDON...HAMPTON...HARDY...HARRISON...HASKELL...HAZEN...HEBER SPRINGS...HECTOR...HERMITAGE...HORSESHOE BEND...HOT SPRINGS...HOT SPRINGS VILLAGE...HOUSTON...HUMNOKE...HUMPHREY...JACKSONVILLE...JASPER...JESSIEVILLE...KINGSLAND...LACEY...LEAD HILL...LEOLA...LESLIE...LITTLE ROCK...LONOKE...MALVERN...MAMMOTH SPRING...MARSHALL...MAUMELLE...MAYFLOWER...MCCRORY...MCGEHEE...MELBOURNE...MENA...MONTICELLO...MORO BAY...MORRILTON...MOUNT IDA...MOUNT MAGAZINE...MOUNTAIN HOME...MOUNTAIN VIEW...MURFREESBORO...NEWPORT...NORFORK...NORMAN...NORTH LITTLE ROCK...OIL TROUGH...OKOLONA...OLA...OMAHA...OXFORD...OZONE...PARIS...PARON...PELSOR...PERRYVILLE...PINE BLUFF...PINE RIDGE...PLEASANT PLAINS...POYEN...PRATTSVILLE...REDFIELD...RISON...ROHWER...ROSE BUD...RUSSELLVILLE...SALEM...SEARCY...SHERIDAN...SHERWOOD...STAR CITY...STEPHENS...STUTTGART...SUMMIT...SWIFTON...THORNTON...TUCKERMAN...VILONIA...VIOLA...WALDRON...WARREN...WESTERN GROVE...WICKES...WRIGHTSVILLE...Y CITY...YELLVILLE426 PM CDT WED APR 27 2011...COLD AIR FUNNELS POSSIBLE THIS AFTERNOON...THE ENVIRONMENT THIS AFTERNOON HAS BECOME FAVORABLE FOR COLD AIRFUNNEL CLOUDS AS AN AREA OF UPPER LEVEL LOW PRESSURE MOVES THROUGH.COLD AIR FUNNELS RARELY REACH THE GROUND AND GENERALLY POSE LITTLETHREAT.$$ CanadaSpecial Weather Statements are issued by the MSC for weather events that are unusual or those that cause general inconvenience or public concern and cannot adequately be described in a weather forecast. These may include widespread events such as Arctic outflows, Alberta clippers, coastal fog banks, areas of possible thunderstorm development, and strong winds such as chinooks and les suetes winds. They are written in a free style and may also reflect warnings in effect near the United States border. Example of a Canadian Special Weather StatementWOCN17 CWHX 141915Special weather statement updated by Environment Canada at 4:45 PM NDT Tuesday 14 May 2013.---------------------------------------------------------------------Special weather statement for: Churchill Falls and vicinity Churchill Valley Upper Lake Melville Eagle River Nain and vicinity Hopedale and vicinity Postville - Makkovik Rigolet and vicinity Cartwright to Black Tickle. Snow, ice pellets and freezing rain expected on Wednesday.---------------------------------------------------------------------==discussion==A low pressure system south of Nova Scotia will move northward to lie south of Goose Bay by Wednesday evening. Rain associated with this system will develop over central regions overnight tonight then change to snow or ice pellets with a risk of freezing rain before morning. In the Rigolet area, snow is expected to mix with or change to ice pellets, however an extended period of freezing rain is possible. Precipitation is expected to remain primarily as snow from Nain to Makkovik and in the Churchill Falls area. Though snowfall amounts are not expected to reach warning criteria at this time.The public is advised to monitor future forecasts and warnings as warnings may be required or extended.Please monitor the latest forecasts and warnings from EnvironmentCanada at www.weatheroffice.gc.caEnd See also
References1. ^Special Weather Statement External links
2 : Statements|Weather warnings and advisories |
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