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Severe Thunderstorm Watch 284
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WW0284 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 284
   NWS STORM PREDICTION CENTER NORMAN OK
   230 PM CDT THU JUN 6 2013

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     EAST CENTRAL AND SOUTHEAST TEXAS
     COASTAL WATERS

   * EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 230 PM UNTIL
     1000 PM CDT.

   * 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 70
   STATUTE MILES EITHER SIDE OF A LINE FROM 45 MILES NORTHWEST OF
   HUNTSVILLE TEXAS TO 20 MILES SOUTHEAST OF GALVESTON TEXAS.  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 283...

   DISCUSSION...STORMS ARE INCREASING OVER EAST CENTRAL TX NEAR THE
   INTERSECTION OF AN OUTFLOW BOUNDARY ARCING NW/SE ACROSS ERN TX AND A
   WEAK COLD FRONT MOVING EWD.  ACTIVITY IS IN THE SRN PORTION OF A
   VORTICITY MAX MOVING EWD TOWARD NERN TX.  STRONGER WNWLY WINDS ALOFT
   TO THE SOUTH OF THE VORTICITY MAX ARE CONTRIBUTING TO 30-40 KT DEEP
   LAYER SHEAR SUPPORTIVE OF ORGANIZED STORM STRUCTURES WITHIN AN
   UNSTABLE AIR MASS /MLCAPE TO 2500 J PER KG/.  ACTIVITY IS EXPECTED
   TO CONTINUE DEVELOPING SEWD WITH STRONGER CELLS CAPABLE OF PRODUCING
   LARGE HAIL AND 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 550. MEAN STORM
   MOTION VECTOR 28025.


   ...WEISS
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Page last modified: June 07, 2013
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