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Severe Thunderstorm Watch 753
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WW0753 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
Moderate 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.
   SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 753
   NWS STORM PREDICTION CENTER NORMAN OK
   630 PM CDT THU OCT 1 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          CENTRAL AND SOUTHWEST ARKANSAS
          NORTHWEST LOUISIANA
          NORTHEAST TEXAS
   
   EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 630 PM
   UNTIL 200 AM CDT.
   
   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 60
   STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH
   NORTHEAST OF HOT SPRINGS ARKANSAS TO 60 MILES SOUTH OF LONGVIEW
   TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
   WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).
   
   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 751...WW 752...
   
   DISCUSSION...A BROKEN BAND OF STRONG/SEVERE STORMS ALONG THE COLD
   FRONT WILL CONTINUE TO MOVE EWD/SEWD THROUGH EARLY TONIGHT ACROSS SW
   AR/NE TX/NW LA...WHILE OTHER MORE ISOLATED STORMS FORM IN THE WARM
   SECTOR ACROSS SW AR IN A ZONE OF WEAK BACKGROUND ASCENT.  THE
   COMBINATION OF MODERATE INSTABILITY AND SUFFICIENT DEEP LAYER
   VERTICAL SHEAR FOR SUPERCELLS WILL CONTINUE TO SUPPORT ORGANIZED
   SEVERE STORMS CAPABLE OF PRODUCING DAMAGING WINDS AND LARGE HAIL. 
   AN ISOLATED TORNADO CANNOT BE COMPLETELY RULED OUT CLOSER TO THE
   WARM FRONT IN AR...THOUGH GRADUAL WEAKENING OF LOW-LEVEL SHEAR AND
   INSTABILITY TONIGHT SUGGESTS THAT ANY TORNADO THREAT WILL BE
   LIMITED.
   
   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 29030.
   
   
   ...THOMPSON
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Page last modified: October 02, 2009
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