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WWUS20 KWNS 021931

SEL5

SPC WW 021931

KYZ000-TNZ000-VAZ000-WVZ000-030100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 135

NWS STORM PREDICTION CENTER NORMAN OK

335 PM EDT SUN MAY 2 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EASTERN KENTUCKY

       NORTHEAST TENNESSEE

       EXTREME SOUTHWEST VIRGINIA

       WESTERN AND CENTRAL WEST VIRGINIA



EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 335 PM UNTIL 900

PM EDT.



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 55

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 45 MILES SOUTHWEST

OF LONDON KENTUCKY TO 40 MILES EAST OF CHARLESTON WEST VIRGINIA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 133...WW 134...



DISCUSSION...SEVERAL BOWING CONVECTIVE STRUCTURES OVER TN/KY WILL

TRACK NORTHEASTWARD INTO WV AND EXTREME SOUTHWEST VA THROUGH THE

AFTERNOON.  VERY STRONG WINDS JUST ABOVE THE SURFACE COUPLED WITH

RATHER STRONG DAYTIME HEATING AND STEEP LOW LEVEL LAPSE RATES WILL

PROMOTE THE RISK OF DAMAGING WINDS IN THE STRONGER STORMS.



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 450. MEAN STORM

MOTION VECTOR 24040.





...HART

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