SEVERE THUNDERSTORM WATCH NUMBER 549 NWS STORM PREDICTION CENTER NORMAN OK 1045 AM CDT WED OCT 30 2013 THE NWS STORM PREDICTION CENTER HAS ISSUED A * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF FAR NORTHEAST KANSAS NORTHERN MISSOURI * EFFECTIVE THIS WEDNESDAY MORNING AND AFTERNOON FROM 1045 AM UNTIL 500 PM CDT. * PRIMARY THREATS INCLUDE... SEVERAL LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE A FEW DAMAGING WIND GUSTS TO 70 MPH POSSIBLE THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 20 MILES WEST OF SAINT JOSEPH MISSOURI TO 15 MILES EAST SOUTHEAST OF KIRKSVILLE MISSOURI. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9). 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. && DISCUSSION...SLIGHTLY ELEVATED TSTMS EXPECTED TO PERSIST AND POSSIBLY INCREASE IN AREA OF SUSTAINED LOW-LVL WAA/MOISTURE TRANSPORT ASSOCIATED WITH SRN PART OF UPR IMPULSE EJECTING NNE ACROSS NEB/SD. GIVEN QUALITY OF MOIST INFLOW...RELATIVELY STEEP MID-LVL LAPSE RATES...AND PRESENCE OF SUFFICIENT CLOUD-LAYER SHEAR FOR SUSTAINED UPDRAFTS...POTENTIAL WILL EXIST FOR SVR HAIL AND POSSIBLY LOCALLY DMGG WIND. DEVELOPMENT ALSO MAY BE ENHANCED BY LOW-LVL UPLIFT NEAR W-E...OUTFLOW-REINFORCED WARM FRONT OVER NRN MO. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 26035. ...CORFIDI ====================================================================== 373 WWUS40 KWNS 301546 WWP9 SEVERE THUNDERSTORM WATCH PROBABILITIES FOR WS 0549 NWS STORM PREDICTION CENTER NORMAN OK 1042 AM CDT WED OCT 30 2013 WS 0549 PROBABILITY TABLE: PROB OF 2 OR MORE TORNADOES : 10% PROB OF 1 OR MORE STRONG /F2-F5/ TORNADOES : = 65 KNOTS : = 2 INCHES : 20% PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS : 60% && ATTRIBUTE TABLE: MAX HAIL /INCHES/ : 1.5 MAX WIND GUSTS SURFACE /KNOTS/ : 60 MAX TOPS /X 100 FEET/ : 500 MEAN STORM MOTION VECTOR /DEGREES AND KNOTS/ : 26035 PARTICULARLY DANGEROUS SITUATION : NO && FOR A COMPLETE GEOGRAPHICAL DEPICTION OF THE WATCH AND WATCH EXPIRATION INFORMATION SEE WOUS64 FOR WOU9.
Posted on: Wed, 30 Oct 2013 17:07:44 +0000
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