URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 43 NWS STORM PREDICTION CENTER NORMAN OK 1030 PM CST TUE FEB 28 2012 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF NORTHWEST ARKANSAS EXTREME SOUTHEAST KANSAS SOUTHWEST AND SOUTH CENTRAL MISSOURI EASTERN OKLAHOMA EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 1030 PM UNTIL 500 AM CST. TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 85 STATUTE MILES EAST AND WEST OF A LINE FROM 65 MILES NORTH OF SPRINGFIELD MISSOURI TO 45 MILES SOUTH SOUTHEAST OF POTEAU OKLAHOMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3). REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND 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. OTHER WATCH INFORMATION...CONTINUE...WW 41...WW 42... DISCUSSION...BROKEN FRONTAL SQUALL LINE...WITH SOME EMBEDDED SEMI-DISCRETE STORMS/SUPERCELLS...WILL CONTINUE TO SURGE EWD ACROSS OK/KS INTO SW MO/NW AR OVERNIGHT. SOME LOW-LEVEL MOISTENING AND A CONTINUATION OF VERY STRONG LOW-MIDLEVEL SHEAR PROFILES WILL MAINTAIN A RISK FOR DAMAGING WINDS AND POSSIBLY A COUPLE OF TORNADOES...AS WELL AS LARGE HAIL WITH THE MOST INTENSE/PERSISTENT SUPERCELL STRUCTURES. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION VECTOR 27050.
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