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Severe Thunderstorm Watch 268
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WW0268 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
High 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.
   SEL8
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 268
   NWS STORM PREDICTION CENTER NORMAN OK
   1245 PM CDT FRI MAY 8 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          PARTS OF SOUTHERN INDIANA
          MUCH OF CENTRAL AND PARTS OF EASTERN KENTUCKY
          MUCH OF  MIDDLE AND PARTS OF EASTERN TENNESSEE
   
   EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 1245 PM UNTIL
   700 PM CDT.
   
   HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80
   STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH
   NORTHEAST OF LOUISVILLE KENTUCKY TO 40 MILES SOUTH SOUTHWEST OF
   CROSSVILLE TENNESSEE.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
   THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).
   
   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 267...
   
   DISCUSSION...MATURE DERECHO CONTINUES RAPIDLY EWD WITH WIDESPREAD
   DAMAGING WINDS.  AIR MASS WHILE NOT QUITE AS UNSTABLE AS FURTHER
   W...IS BECOMING MDTLY UNSTABLE ACROSS THE WATCH AND WILL SUPPORT
   CONTINUATION OF DAMAGING WINDS ALONG WITH BRIEF/ISOLATED
   TORNADOES...PARTICULARLY ASSOCIATED WITH THE MESO CYCLONE
   ACCOMPANYING THE DERECHO.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
   MOTION VECTOR 26045.
   
   
   ...HALES
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Page last modified: May 08, 2009
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