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Severe Thunderstorm Watch 257
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WW0257 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Very Low
Severe Hail 2"+ Hail
Moderate 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.
   SEL7

   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 257
   NWS STORM PREDICTION CENTER NORMAN OK
   640 PM CDT SAT JUN 7 2014

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     NORTHERN ALABAMA
     MIDDLE TENNESSEE

   * EFFECTIVE THIS SATURDAY NIGHT FROM 640 PM UNTIL MIDNIGHT CDT.

   * PRIMARY THREATS INCLUDE...
     ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
     ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
   STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHEAST OF
   NASHVILLE TENNESSEE TO 15 MILES SOUTHWEST OF HUNTSVILLE ALABAMA. 
   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 252...WW 253...WW
   254...WW 255...WW 256...

   DISCUSSION...LOOSELY-ORGANIZED BANDS OF STORMS IN MODESTLY SHEARED
   ENVIRONMENT EXPECTED TO CONTINUE SPREADING GENERALLY E ACROSS THE
   MIDDLE TN VLY THROUGH LATER THIS EVE. WHILE BOTH BUOYANCY AND SHEAR
   DIMINISH WITH EWD EXTENT...REGION WILL BE GLANCED BY ASCENT AND
   STRONGER WIND FIELD ASSOCIATED WITH PROGRESSIVE MID-MS VLY UPR VORT.
   THIS MAY SUPPORT A RISK FOR SVR HAIL AND WIND IN STRONGER UPDRAFTS.

   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 26025.


   ...CORFIDI
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Page last modified: June 08, 2014
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