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Severe Thundersnow Warning
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In Dublin Coffman Weather Service (DCWS) terminology, a Severe Thundersnow Warning (DCATE Code: TSN-W) is a warning issued when a dangerous Winter Storm is expected to bring winds of 58 MPH or higher or hail at least as large as quarters, in addition to thunder and lightning, to a specific location. The warning is issued as soon as thunder, as well as the severe criteria, become imminent or occurring in an area. The warning is to be issued for the smallest area possible. It was developed in response to confusion resulting from the severe conditions of the January 31 - February 2, 2011 North American winter storm. The DCWS office in Dublin issued 15 Severe Thunderstorm Warnings for areas that would not experience a rain-producing Thunderstorm, but would experience wind speeds and precipitation rates commonly associated with severe thunderstorms, as well as thunder and lightning. The Severe Thundersnow Warning is now expected to be used in these situations. Example Severe Thundersnow Warning This is an example Severe Thundersnow warning based on the January 31 - February 2, 2011 North American winter storm. <pre> BULLETIN - DCAS ACTIVATION REQUESTED SEVERE THUNDERSNOW WARNING DUBLIN COFFMAN WEATHER SERVICE DUBLIN OH 712 PM EDT 1 FEBRUARY 2011 THE DUBLIN COFFMAN WEATHER SERVICE IN DUBLIN OHIO HAS ISSUED A… *SEVERE THUNDERSNOW WARNING FOR BLIZZARD THUNDERSNOW FOR THE ENTIRE CHICAGO AREA INCLUDING THE COUNTIES OF COOK… DEKALB… DUPAGE… GRUNDY… KANE… KENDALL… MCHENRY… LAKE… LASALLE… KANKAKEE… AND WILL IN NORTHEAST ILLINOIS AS WELL AS JASPER… LAKE… NEWTON… LAPORTE… AND PORTER COUNTIES IN NORTHWEST INDIANA… KENOSHA AND RACINE COUNTY IN SOUTHEAST WISCONSIN… AND ALL CITIES INCLUDED IN THEM. *UNTIL 915 PM. *AT 710 PM… DOPPLER RADAR INDICATED A BLIZZARD CAPABLE OF PRODUCING SNOWFALL RATES TO 2 INCHES PER HOUR… THUNDER AND LIGHTNING… AND DAMAGING WINDS TO 70 MPH. THIS DANGEROUS BLIZZARD WAS WIDESPREAD ACROSS THE ENTIRE CHICAGO AREA AND ONGOING. WIND DAMAGE FROM THIS STORM WILL BE SIMILAR TO THAT PRODUCED BY SEVERE THUNDERSTORMS… WINDCHILLS WILL REMAIN DANGEROUSLY LOW… AND SNOW WILL RAPIDLY BURY ANY OBJECT LEFT OUTDOORS. *PRECAUTIONARY/PREPAREDNESS ACTIONS… TAKE COVER INDOORS AND AWAY FROM WINDOWS!. THIS STORM IS CAPABLE OF BLOWING OUT WINDOWS AND VENTURING OUTDOORS MAY RESLT IN RAPID FROSTBITE!. DRIVING IN THIS STORM IS EXTREMELY DANGEROUS DUE TO HIGH WINDS AND EXTREME SNOWFALL RATES. && /O.KDUB.ALT.TSN.W.201102011912.201102012115.O/ $$ STAR </pre> See Also
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