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Severe Thunderstorm Watch 198
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WW0198 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate 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.
   SEL8
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 198
   NWS STORM PREDICTION CENTER NORMAN OK
   1145 PM CDT SUN APR 24 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          LARGE PART OF NORTHERN TEXAS
   
   EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 1145 PM UNTIL
   500 AM CDT.
   
   HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 45 MILES NORTH
   NORTHWEST OF SAN ANGELO TEXAS TO 50 MILES NORTH OF LONGVIEW
   TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
   WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).
   
   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...THIS SEVERE THUNDERSTORM WATCH REPLACES
   TORNADO WATCH NUMBER 196. WATCH NUMBER 196 WILL NOT BE IN EFFECT
   AFTER 1145 PM CDT. CONTINUE...WW 197...
   
   DISCUSSION...SEVERE THUNDERSTORMS INCLUDING SUPERCELLS WILL CONTINUE
   TO BE A THREAT THRU MUCH OF THE NIGHT WITH THE APPROACHING UPPER
   TROUGH AND WIND MAX PROVIDING LARGE SCALE ASCENT.  WITH THE AIR MASS
   REMAINING MDTLY UNSTABLE AND THE AVAILABLE SHEAR ADDITIONAL
   THUNDERSTORMS WILL CONTINUE TO REDEVELOP FROM THE DRY LINE WRN
   PORTION OF THE WATCH EWD.  PRIMARY THREAT WILL BE LARGE HAIL AND
   LOCAL DAMAGING DOWNBURST WINDS.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
   MOTION VECTOR 24030.
   
   
   ...HALES
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