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Severe Thunderstorm Watch 545
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WW0545 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
Low 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.
   SEL5
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 545
   NWS STORM PREDICTION CENTER NORMAN OK
   1230 PM CDT SAT JUL 4 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHERN ARKANSAS
          EXTREME SOUTHERN MISSOURI
          EASTERN OKLAHOMA
   
   EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 1230 PM UNTIL
   800 PM 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 45
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 50 MILES SOUTH
   SOUTHWEST OF MUSKOGEE OKLAHOMA TO 25 MILES NORTH OF WALNUT RIDGE
   ARKANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).
   
   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...THUNDERSTORMS SHOULD CONTINUE TO INTENSIFY ALONG EWD
   TRACKING MCS OUTFLOW MOVING INTO HOT/UNSTABLE AIRMASS FROM ERN OK
   ACROSS NRN AR THIS AFTERNOON. DESPITE LIMITED MID-LEVEL
   FLOW...SUFFICIENT LIFT ALONG LEADING EDGE OF COLD POOL...AND
   STEEPENING LOW-LEVEL LAPSE RATES SHOULD CONTRIBUTE TO DAMAGING WIND
   POTENTIAL AS STORMS MOVE/DEVELOP EAST THROUGH THE AFTERNOON.
   
   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 28015.
   
   
   ...CARBIN
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Page last modified: July 05, 2009
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