STORM PREDICTION CENTER NORMAN OK 305 PM CDT FRI MAY 15 2009 THE NWS
STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF
CENTRAL INTO EASTERN KANSAS WESTERN INTO NORTHERN OKLAHOMA
EASTERN TEXAS PANHANDLE EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING
FROM 305 PM UNTIL 1000 PM CDT. TORNADOES...HAIL TO 3 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 NORTH AND SOUTH OF A LINE FROM 70 MILES
SOUTHWEST OF GAGE OKLAHOMA TO 50 MILES NORTH NORTHEAST OF CHANUTE KANSAS.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU7). 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 305...WW
306... DISCUSSION...EXTREME INSTABILITY IN PLACE AHEAD OF APPROACHING
SURFACE COLD FRONT SHOULD SUPPORT RAPID SEVERE THUNDERSTORM DEVELOPMENT
DURING THE NEXT 1-2 HOURS...BOTH NEAR FRONT AND DRY LINE OVER ERN TX
PANHANDLE. DEGREE OF INSTABILITY AND STRENGTH OF CAP MAY SUPPORT DISCRETE
DEVELOPMENT INTO THE EARLY EVENING...DESPITE THE MODEST DEEP LAYER SHEAR.
SHOULD STORMS REMAIN DISCRETE...SLOW SSEWD MOVING SUPERCELLS SHOULD
EVOLVE WITH ATTENDANT THREATS OF VERY LARGE HAIL AND BRIEF TORNADOES.
SHEAR WILL REMAIN STRONGER WITH POSSIBLY A GREATER TORNADO POTENTIAL INTO
ERN KS. OVERALL EVOLUTION INTO A LARGER MCS...POSSIBLY COMPOSED OF
SEVERAL SMALL-SCALE BOW ECHOES SHOULD OCCUR THROUGH THE MID EVENING.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND
ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR
29025. EVANS KANSAS COUNTIES INCLUDED ARE
ALLEN ANDERSON BARBER
BUTLER CHASE CHAUTAUQUA
COFFEY COMANCHE COWLEY
DICKINSON DOUGLAS ELK
FRANKLIN GEARY GREENWOOD
HARPER HARVEY JEFFERSON
KINGMAN LABETTE LYON
MARION MCPHERSON MONTGOMERY
MORRIS NEOSHO OSAGE
PRATT RENO SEDGWICK
SHAWNEE SUMNER WABAUNSEE
WILSON WOODSON
OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA BECKHAM BLAINE
CUSTER DEWEY ELLIS
GARFIELD GRANT HARPER
KAY KINGFISHER MAJOR
NOBLE OSAGE PAWNEE
ROGER MILLS WOODS WOODWARD
TEXAS COUNTIES INCLUDED ARE
COLLINGSWORTH DONLEY GRAY
HEMPHILL LIPSCOMB OCHILTREE
ROBERTS WHEELER
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