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Severe Thunderstorm Watch 1
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WW0001 Radar
Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
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   SEL1
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 1
   NWS STORM PREDICTION CENTER NORMAN OK
   935 AM CST SAT JAN 3 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHEAST LOUISIANA
          SOUTHERN MISSISSIPPI
          COASTAL WATERS
   
   EFFECTIVE THIS SATURDAY MORNING AND AFTERNOON FROM 935 AM UNTIL
   500 PM CST.
   
   HAIL TO 1.5 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 85
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 15 MILES NORTH
   NORTHWEST OF INTRACOASTAL CITY LOUISIANA TO 10 MILES EAST
   SOUTHEAST OF GULFPORT MISSISSIPPI.  FOR A COMPLETE DEPICTION OF
   THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS
   WOU1).
   
   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.
   
   DISCUSSION...SCATTERED THUNDERSTORMS ARE INCREASING ACROSS SOUTH
   CENTRAL LA AHEAD OF APPROACHING UPPER TROUGH.  THESE STORMS ARE
   FORECAST TO CONTINUE TO INTENSIFY THIS MORNING AND EARLY
   AFTERNOON...SPREADING EAST-NORTHEASTWARD.  MUCAPE VALUES 1500 J/KG
   AND SUFFICIENT EFFECTIVE SHEAR WILL PROMOTE ORGANIZED AND/OR
   SUPERCELL STORMS CAPABLE OF HAIL AND DAMAGING WINDS.
   
   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 450. MEAN STORM
   MOTION VECTOR 25030.
   
   
   ...HART
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Page last modified: January 03, 2009
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