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Severe Thunderstorm Watch 307
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WW0307 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Low
Severe Wind 65 kt+ Wind
High Moderate
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.
   SEL7

   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 307
   NWS STORM PREDICTION CENTER NORMAN OK
   145 PM EDT THU JUN 13 2013

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     NORTHERN ALABAMA
     NORTHERN GEORGIA
     WESTERN NORTH CAROLINA
     NORTHWEST SOUTH CAROLINA
     MIDDLE AND EASTERN TENNESSEE

   * EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 145 PM UNTIL
     800 PM EDT.

   * PRIMARY THREATS INCLUDE...
     SEVERAL SIGNIFICANT DAMAGING WIND GUSTS TO 75 MPH POSSIBLE
     SEVERAL VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE
     A FEW TORNADOES POSSIBLE

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 50 MILES NORTH
   NORTHWEST OF MUSCLE SHOALS ALABAMA TO 40 MILES EAST NORTHEAST OF
   CHARLOTTE NORTH CAROLINA.  FOR A COMPLETE DEPICTION OF THE WATCH
   SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).

   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 305...WW 306...

   DISCUSSION...POTENTIAL FOR SEVERE THUNDERSTORMS WILL INCREASE ACROSS
   THE WATCH AREA THROUGH THE AFTERNOON AS A COLD FRONT SUPPORTED BY
   STRONG UPPER TROUGH SPREADS SOUTHWARD. VERY UNSTABLE AIRMASS NOW
   SITUATED AHEAD OF THE FRONT AND UPPER SYSTEM WILL FUEL INTENSE
   THUNDERSTORM UPDRAFTS THAT WILL DEVELOP AMIDST STRONG UNIDIRECTIONAL
   SHEAR. RESULTING STORMS SHOULD ATTAIN SUPERCELL/SPLITTING CELL
   CHARACTER WITH LARGE HAIL AND HIGH WINDS LIKELY. WITH TIME...CELL
   MERGERS OR SOME CLUSTERING MAY SUPPORT THE DEVELOPMENT OF LINE
   SEGMENTS/LEWPS WITH INCREASING CHANCE FOR MORE WIDESPREAD WIND
   DAMAGE.

   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 32035.


   ...CARBIN
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