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Severe Thunderstorm Watch 277
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WW0277 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
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.
   SEL7
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 277
   NWS STORM PREDICTION CENTER NORMAN OK
   1130 PM EDT FRI MAY 8 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHEAST ARKANSAS
          FAR SOUTHERN ILLINOIS
          CENTRAL AND SOUTHERN KENTUCKY
          SOUTHEAST MISSOURI
          NORTHERN TENNESSEE
   
   EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 1130 PM
   UNTIL 700 AM EDT.
   
   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 50
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 20 MILES NORTH
   NORTHWEST OF WALNUT RIDGE ARKANSAS TO 40 MILES EAST SOUTHEAST OF
   JACKSON KENTUCKY.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).
   
   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 271. WATCH NUMBER 271 WILL NOT BE IN EFFECT
   AFTER 1130 PM EDT. CONTINUE...WW 272...WW 273...WW 274...WW
   275...WW 276...
   
   DISCUSSION...TSTMS EXPECTED TO PERSIST AND POSSIBLY INCREASE ALONG
   WSW-ENE AXIS OF SLIGHTLY-ELEVATED WAA/CONFLUENCE FROM THE AR/MO
   BORDER INTO SRN KY.  QUALITY OF WARM SECTOR MOISTURE AND MODERATE
   WLY MID LVL FLOW SUGGEST POTENTIAL FOR A FEW SUSTAINED STORMS WITH
   HAIL.  ACTIVITY MAY TEND TO BACK-BUILD/MERGE/REGENERATE OVER WW
   THROUGH EARLY SAT.  THIS MAY ALLOW FOR DEVELOPMENT OF
   WEAKLY-ORGANIZED LEWPS WITH LOCALLY DMGG WIND/HAIL AND PERHAPS AN
   ISOLD TORNADO.
   
   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 26035.
   
   
   ...CORFIDI
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