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000 

WWUS20 KWNS 081638

SEL0

SPC WW 081638

KYZ000-OHZ000-PAZ000-TNZ000-VAZ000-WVZ000-090100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 370

NWS STORM PREDICTION CENTER NORMAN OK

1240 PM EDT FRI JUN 8 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EASTERN KENTUCKY

       SOUTHEAST OHIO

       SOUTHWEST PENNSYLVANIA

       EASTERN AND PARTS OF MIDDLE TENNESSEE

       FAR WESTERN VIRGINIA

       MUCH OF WEST VIRGINIA



EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 1240 PM UNTIL

900 PM EDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 85

STATUTE MILES EAST AND WEST OF A LINE FROM 75 MILES SOUTH

SOUTHWEST OF CROSSVILLE TENNESSEE TO 15 MILES NORTH NORTHWEST OF

PITTSBURGH PENNSYLVANIA.  FOR A COMPLETE DEPICTION OF THE WATCH

SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



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 367...WW 368...WW 369...



DISCUSSION...SQUALL LINE FROM SWRN OH TO WRN TN WILL CONTINUE

RAPIDLY EWD WITH INTENSIFICATION THROUGH THE AFTERNOON AS IT

ENCOUNTERS INCREASINGLY UNSTABLE AIRMASS.  SHEAR PROFILES PROVIDE BY

S/WV TROUGH PASSING THRU GREAT LAKES WILL ENHANCE WIND DAMAGE

POTENTIAL...PARTICULARLY ASSOCIATED WITH BOWING SEGMENTS IN THE

SQUALL LINE.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 24035.





...HALES

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