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Severe Thunderstorm Watch 349
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WW0349 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Low Very Low

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL9
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 349
   NWS STORM PREDICTION CENTER NORMAN OK
   830 PM EDT MON MAY 23 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          EXTREME NORTHEAST KENTUCKY
          EASTERN OHIO
          WESTERN PENNSYLVANIA
          WEST CENTRAL AND NORTHWEST WEST VIRGINIA
          LAKE ERIE
   
   EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 830 PM UNTIL
   200 AM 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 60
   STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES WEST
   NORTHWEST OF BRADFORD PENNSYLVANIA TO 60 MILES SOUTHWEST OF
   HUNTINGTON WEST VIRGINIA.  FOR A COMPLETE DEPICTION OF THE WATCH
   SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
   
   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 342...WW 344...WW
   345...WW 346...WW 347...WW 348...
   
   DISCUSSION...WELL-FORMED QLCS OVER OH/NRN KY WILL CONTINUE EWD
   TOWARD THE UPPER OH VALLEY INTO THE EARLY OVERNIGHT HOURS.  THOUGH
   THE BOUNDARY LAYER WILL GRADUALLY COOL/STABILIZE AHEAD OF THE
   STORMS...INSTABILITY AND LOW-MIDLEVEL VERTICAL SHEAR SHOULD REMAIN
   SUFFICIENT FOR ORGANIZED STORMS WITH A DAMAGING WIND AND ISOLATED
   HAIL RISK.  OTHER MORE ISOLATED CELLS MAY PERSIST FOR ANOTHER COUPLE
   OF HOURS ACROSS NE OH/NW PA IN THE WARM ADVECTION REGIME.
   
   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 500. MEAN STORM
   MOTION VECTOR 27040.
   
   
   ...THOMPSON
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