URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 475 NWS STORM PREDICTION CENTER NORMAN OK 340 PM CDT TUE AUG 6 2013 THE NWS STORM PREDICTION CENTER HAS ISSUED A * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF SOUTHEAST COLORADO SOUTHWEST AND SOUTH CENTRAL KANSAS NORTHWESTERN OKLAHOMA * EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 340 PM UNTIL 1000 PM CDT. * PRIMARY THREATS INCLUDE... SEVERAL DAMAGING WIND GUSTS LIKELY WITH A FEW SIGNIFICANT GUSTS TO 80 MPH POSSIBLE SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 50 MILES NORTH NORTHWEST OF ELKHART KANSAS TO 35 MILES NORTH NORTHEAST OF MEDICINE LODGE KANSAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES. && OTHER WATCH INFORMATION...CONTINUE...WW 474... DISCUSSION...ISOLATED SEVERE STORM DEVELOPMENT IS NOW UNDERWAY SOUTH AND SOUTHWEST OF GOODLAND...IN THE PRESENCE OF STRONG INSTABILITY AND MODEST DEEP LAYER SHEAR. ADDITIONAL THUNDERSTORM DEVELOPMENT IS EXPECTED ACROSS THE SOUTH CENTRAL HIGH PLAINS THROUGH THE REMAINDER OF THE AFTERNOON...BECOMING FOCUSED NEAR/JUST NORTH OF A REMNANT BAROCLINIC ZONE NEAR THE KANSAS/OKLAHOMA BORDER AREA. THE EVOLUTION OF AN ORGANIZED MESOSCALE CONVECTIVE SYSTEM NEAR THIS BOUNDARY APPEARS POSSIBLE BY EARLY EVENING...WITH A BROADER SCALE DAMAGING WIND THREAT...IN ADDITION TO THE RISK FOR SEVERE HAIL. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 27040. ...KERR
Posted on: Tue, 06 Aug 2013 20:50:51 +0000
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