

049 

WWUS20 KWNS 102243

SEL0

SPC WW 102243

OHZ000-PAZ000-WVZ000-110500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 460

NWS STORM PREDICTION CENTER NORMAN OK

645 PM EDT FRI JUN 10 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHERN OHIO

       EXTREME WESTERN PENNSYLVANIA

       NORTHERN PANHANDLE OF WEST VIRGINIA



EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 645 PM

UNTIL 100 AM EDT.



HAIL TO 2 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 35

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 20 MILES SOUTHWEST

OF FINDLAY OHIO TO 35 MILES NORTH NORTHEAST OF WHEELING WEST

VIRGINIA.  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 457...WW 458...WW 459...



DISCUSSION...ISOLATED SEVERE STORMS OVER NORTHERN OH WILL TRACK

EASTWARD ACROSS THE WATCH AREA DURING THE NEXT FEW HOURS.

SUFFICIENT VERTICAL SHEAR IN THIS REGION...COUPLED WITH A

MOIST/UNSTABLE AIR MASS WILL PROMOTE A RISK OF DAMAGING WINDS AND

HAIL IN THE STRONGEST 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 28035.





...HART

