SPC Tornado Watch 25

WW 25 TORNADO OK TX 031830Z - 040200Z
URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 25 NWS STORM PREDICTION CENTER NORMAN OK 1230 PM CST FRI FEB 3 2012 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF SOUTHERN OKLAHOMA WESTERN NORTH/NORTH CENTRAL TEXAS EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 1230 PM UNTIL 800 PM CST. TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES SOUTH SOUTHEAST OF MINERAL WELLS TEXAS TO 45 MILES NORTHWEST OF ARDMORE OKLAHOMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5). 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. DISCUSSION...CONVECTION HAS INITIATED ALONG THE DRYLINE AND COLD FRONT DRYLINE INTERSECTION FROM SWRN OK INTO WRN N TX. STORMS SHOULD CONTINUE TO INTENSIFY AS THEY MOVE ENE INTO AN INSTABILITY AXIS CHARACTERIZED BY MLCAPE TO 1200 J/KG AND 50-60 KTS OF 0-6KM SHEAR. ACTIVITY WILL LIKELY EVOLVE INTO NE-SW ORIENTED BANDS AND CLUSTERS WITH DMGG WINDS AND HAIL. ALTHOUGH THE O-2KM WIND FIELDS WERE BEGINNING TO VEER OVER FAR SWRN OK...SUFFICIENT 0-1KM SHEAR WAS NOTED ON THE TLX/PURCELL PROFILERS TO INCLUDE POSSIBILITY OF A COUPLE TORNADOES...ESPECIALLY WITH THE MORE DISCRETE STORMS. AVIATION...TORNADOES AND 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 450. MEAN STORM MOTION VECTOR 24030. ...RACY Read more

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