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Severe Thunderstorm Watch 204
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WW0204 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Moderate Moderate

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL4
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 204
   NWS STORM PREDICTION CENTER NORMAN OK
   205 PM EDT TUE MAY 21 2013
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   
   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     NORTHERN CONNECTICUT
     WESTERN AND CENTRAL MASSACHUSETTS
     SOUTHERN NEW HAMPSHIRE
     NORTHERN RHODE ISLAND
   
   * EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 205 PM UNTIL
     900 PM EDT.
   
   * PRIMARY THREATS INCLUDE...
     SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2
       INCHES IN DIAMETER POSSIBLE
     SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 40
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 15 MILES WEST OF
   WESTFIELD MASSACHUSETTS TO 30 MILES NORTH NORTHEAST OF PROVIDENCE
   RHODE ISLAND.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
   
   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 201...WW 202...WW 203...
   
   DISCUSSION...AT LEAST SCATTERED VIGOROUS THUNDERSTORM DEVELOPMENT IS
   EXPECTED ACROSS PARTS OF SOUTHERN NEW ENGLAND THIS
   AFTERNOON...WITHIN THE WARM SECTOR OF A WEAK FRONTAL WAVE.  FAIRLY
   STEEP MID-LEVEL LAPSE RATES ARE CONTRIBUTING TO SIZABLE CAPE...IN
   THE PRESENCE OF MODESTLY STRONG DEEP LAYER SHEAR BENEATH 30-40 KT
   WESTNORTHWESTERLY 500 MB FLOW.  SUPERCELL STRUCTURES APPEAR
   POSSIBLE...CONTRIBUTING TO THE RISK FOR SEVERE HAIL AND POTENTIALLY
   DAMAGING WIND GUSTS.
   
   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 29025.
   
   
   ...KERR
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Page last modified: May 22, 2013
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