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Severe Thunderstorm Watch 155
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WW0155 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.
   SEL5
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 155
   NWS STORM PREDICTION CENTER NORMAN OK
   905 AM CDT FRI MAY 10 2013
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   
   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     UPPER TEXAS COAST
     COASTAL WATERS
   
   * EFFECTIVE THIS FRIDAY MORNING AND AFTERNOON FROM 905 AM UNTIL
     200 PM CDT.
   
   * PRIMARY THREATS INCLUDE...
     SEVERAL 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 65
   STATUTE MILES EITHER SIDE OF A LINE FROM 50 MILES NORTHEAST OF
   HOUSTON TEXAS TO 10 MILES WEST OF PALACIOS TEXAS.  FOR A COMPLETE
   DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
   (WOUS64 KWNS WOU5).
   
   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 154...
   
   DISCUSSION...RELATIVELY WELL-ORGANIZED CLUSTERS OF INTENSE STORMS
   WILL PERSIST WHILE MOVING ESEWD ACROSS THE UPPER TX COAST THROUGH
   THE REST OF THE MORNING. THIS ACTIVITY IS BEING FUELED BY A PLUME OF
   VERY UNSTABLE AIR STREAMING ACROSS AN OUTFLOW BOUNDARY LEFT IN THE
   WAKE OF EARLIER MCS NOW MOVING OVER SE LA/MS DELTA. EXPECT GRADUAL
   INCREASE IN CONVECTIVE VIGOR AS STORMS ENCOUNTER SOME INCREASE IN
   DIURNAL DESTABILIZATION BEFORE MOVING OVER THE WRN GULF LATER. UNTIL
   THEN...SHEAR PROFILES FROM HGX AND CRP SOUNDING SHOW MORE THAN
   ADEQUATE SHEAR FOR SUPERCELL STRUCTURES AND/OR LINE SEGMENTS WITH
   BOTH LARGE HAIL AND DMG WIND POTENTIAL.
   
   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 29035.
   
   
   ...CARBIN
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Page last modified: May 10, 2013
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