WW 485 SEVERE TSTM KS OK 080325Z – 081000Z
URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 485 NWS STORM PREDICTION CENTER NORMAN OK 1025 PM CDT WED AUG 7 2013 THE NWS STORM PREDICTION CENTER HAS ISSUED A * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF SOUTH CENTRAL KANSAS NORTHWESTERN AND NORTH CENTRAL OKLAHOMA * EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 1025 PM UNTIL 500 AM CDT. * PRIMARY THREATS INCLUDE... SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES WEST NORTHWEST OF HUTCHINSON KANSAS TO 55 MILES SOUTHWEST OF ENID OKLAHOMA. 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 483...WW 484... DISCUSSION...A BAND OF STRONG/SEVERE THUNDERSTORMS CONTINUES SHIFTING EWD ACROSS WESTERN KANSAS AND THE TEXAS AND OKLAHOMA PANHANDLES...WHILE OTHER STORMS HAVE BEGUN TO INTENSIFY NEAR THE RED RIVER AREA OF SOUTHWESTERN OKLAHOMA. WITH LOW-LEVEL EASTERLY FLOW OBSERVED BENEATH MODEST MID-LEVEL WESTERLIES SUPPORTING FORWARD PROPAGATION OF THE CONVECTION INTO AN INCREASINGLY UNSTABLE ENVIRONMENT...EXPECT SEVERE THREAT TO EXPAND EAST OF PREVIOUSLY ISSUED WW 483 OVER THE NEXT SEVERAL HOURS. ALONG WITH POTENTIAL FOR LARGE HAIL...DAMAGING WIND GUSTS CAN BE EXPECTED IN THE VICINITY OF STRONGER PORTIONS OF THE EVOLVING LINE OF STORMS. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 25035. ...GOSS
via SPC Forecast Products http://www.spc.noaa.gov/products/watch/ww0485.html
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