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Tornado Watch 267
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WW0267 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Low
Severe Wind 65 kt+ Wind
High High
Severe Hail 2"+ Hail
High 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.
   SEL7
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 267
   NWS STORM PREDICTION CENTER NORMAN OK
   920 AM CDT FRI MAY 8 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          PARTS OF NORTHEAST ARKANSAS
          PARTS OF SOUTHERN ILLINOIS
          WESTERN KENTUCKY
          SOUTHEAST MISSOURI
          MUCH OF WESTERN AND MIDDLE TENNESSEE
   
   EFFECTIVE THIS FRIDAY MORNING AND AFTERNOON FROM 920 AM UNTIL 400
   PM CDT.
   
   TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
   GUSTS TO 105 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
   AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE
   MILES NORTH AND SOUTH OF A LINE FROM 25 MILES WEST OF WEST PLAINS
   MISSOURI TO 35 MILES EAST SOUTHEAST OF CLARKSVILLE TENNESSEE. 
   FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU7).
   
   REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
   TORNADOES AND 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.
   
   OTHER WATCH INFORMATION...CONTINUE...WW 266...
   
   DISCUSSION...A MATURE VERY INTENSE DERECHO IS MOVING VERY RAPIDLY
   ALONG THERMAL/INSTABILITY GRADIENT ACROSS MID MS VLY INTO TN AND
   LOWER OH VALLEYS.  WITH A VERY MOIST UNSTABLE AIR MASS AND STRONG
   VEERING SHEAR PROFILES...EMBEDDED TORNADIC SUPERCELLS WILL CONTINUE
   TO BE ASSOCIATED WITH THE DERECHO ALONG WITH WIDESPREAD DAMAGING
   WINDS.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 90 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   650. MEAN STORM MOTION VECTOR 27055.
   
   
   ...HALES
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Page last modified: May 08, 2009
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