SEL7 URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 357 NWS STORM PREDICTION CENTER NORMAN OK 945 PM CDT MON JUN 4 2012 THE NWS STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF FAR NORTHEAST ARKANSAS SOUTHERN ILLINOIS WESTERN KENTUCKY FAR SOUTHEAST MISSOURI WESTERN AND MIDDLE TENNESSEE EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 945 PM UNTIL 400 AM CDT. HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH OF PADUCAH KENTUCKY TO 50 MILES SOUTHEAST OF JACKSON TENNESSEE. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7). 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 352...WW 353...WW 354...WW 355...WW 356... DISCUSSION...LOOSELY-ORGANIZED TSTM CLUSTER OVER SE MO/SRN IL/WRN KY EXPECTED MOVE/DEVELOP SLOWLY SSE THROUGH LATER TNGT IN ASSOCIATION WITH WEAK IMPULSE IN NW FLOW ALOFT. UPLIFT ALONG EXISTING STORM OUTFLOW AND PRESENCE OF STRONG BUOYANCY ABOVE THE SLOWLY COOLING BOUNDARY LAYER SUGGEST A CONTINUED RISK FOR SPORADIC SVR HAIL/LOCALLY DMGG WIND GIVEN VEERING WIND PROFILES OF MODEST MAGNITUDE. 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 34025.
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