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Severe Thunderstorm Watch 570
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WW0570 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
High Low
Severe Hail 2"+ Hail
Very 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.
   SEL0

   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 570
   NWS STORM PREDICTION CENTER NORMAN OK
   825 PM EST SUN NOV 17 2013

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     THE WESTERN MARYLAND PANHANDLE
     WESTERN NEW YORK
     WESTERN PENNSYLVANIA
     THE NORTHERN WEST VIRGINIA PANHANDLE
     LAKE ERIE
     LAKE ONTARIO

   * EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 825 PM
     UNTIL 100 AM EST.

   * PRIMARY THREATS INCLUDE...
     SEVERAL DAMAGING WIND GUSTS TO 70 MPH LIKELY

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
   STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH OF
   BUFFALO NEW YORK TO 15 MILES SOUTHWEST OF MORGANTOWN WEST
   VIRGINIA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   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 565...WW 566...WW
   567...WW 568...WW 569...

   DISCUSSION...A SQUALL LINE WILL RACE EWD AT 50 KT ACROSS WRN PA/NY
   DURING THE NEXT SEVERAL HOURS.  DESPITE MINIMAL INSTABILITY AND
   LITTLE IF ANY LIGHTNING...60-70 KT FLOW WITHIN 1 KM OF THE GROUND
   WILL SUPPORT A RISK FOR DAMAGING WINDS WITH THE CONVECTIVE LINE.

   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 350. MEAN STORM
   MOTION VECTOR 27050.


   ...THOMPSON
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Page last modified: November 18, 2013
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