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Severe Thunderstorm Watch 778
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WW0778 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
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.
   SEL8
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 778
   NWS STORM PREDICTION CENTER NORMAN OK
   935 PM EDT SAT AUG 13 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHEAST INDIANA
          WESTERN OHIO
   
   EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 935 PM
   UNTIL 200 AM EDT.
   
   HAIL TO 1 INCH 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 EITHER SIDE OF A LINE FROM 65 MILES NORTH NORTHWEST
   OF DAYTON OHIO TO 25 MILES SOUTH OF DAYTON OHIO.  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 777...
   
   DISCUSSION...BROKEN LINE OF STORMS CONTINUES MOVING EAST INTO OH
   THIS EVENING WITH RECENT OBSERVED GUSTS IN THE RANGE OF 45-50KT.
   STORMS HAVE INCREASED A BIT IN INTENSITY SINCE THOSE OBSERVATIONS
   ACROSS THE INDIANAPOLIS AREA. BASED ON ILN EVENING RAOB INDICATING
   STEEP LAPSE RATES AND SUPPORTIVE LARGE SCALE PATTERN FEATURE DIGGING
   UPPER TROUGH...EXPECT THE CHANCE FOR STRONG TO SEVERE GUSTS AND HAIL
   TO ABOUT AN INCH TO ACCOMPANY SOME OF THE STORMS INTO OH OVER THE
   NEXT FEW HOURS.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
   A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION
   VECTOR 29025.
   
   
   ...CARBIN
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