[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 051646
SEL7
SPC WW 051646
ILZ000-INZ000-KYZ000-MOZ000-TNZ000-052300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 117
NWS STORM PREDICTION CENTER NORMAN OK
1145 AM CDT SUN APR 5 2009

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

       PARTS OF SOUTHERN ILLINOIS
       MUCH OF SOUTHERN INDIANA
       MUCH OF WESTERN AND CENTRAL KENTUCKY
       SMALL PART OF SOUTHEAST MISSOURI
       PARTS OF NORTHWEST TENNESSEE

EFFECTIVE THIS SUNDAY MORNING AND EVENING FROM 1145 AM UNTIL 600
PM CDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 85 STATUTE
MILES EAST AND WEST OF A LINE FROM 20 MILES NORTH NORTHEAST OF
BLOOMINGTON INDIANA TO 60 MILES SOUTHWEST 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.

DISCUSSION...STRONG S/WV TROUGH AND ASSOCIATED 100KT MID LEVEL JET
MAX WILL BE TRACKING INTO LOWER OH VALLEY THIS AFTERNOON. DEEPENING
SURFACE LOW MOVES ACROSS CENTRAL IL INTO IND WITH COLD FRONT
EXTENDING SSWWD INTO CENTRAL AR ATTM.  LOW LEVEL MOISTURE INCREASING
IN WARM SECTOR ALONG WITH SURFACE HEATING WILL RAISE MLCAPES TO NEAR
1000 J/KG.  SEVERE THUNDERSTORMS INCLUDING SUPERCELLS WILL DEVELOP
AHEAD OF SURFACE LOW AND COLD FRONT AND TRACK RAPIDLY ENEWD ACROSS
THE WATCH.  IN ADDITION TO DAMAGING WINDS/HAIL...TORNADOES WILL BE
POSSIBLE...PARTICULARLY WITH ANY SUPERCELL THAT IS ABLE TO DEVELOP
IN WARM SECTOR.

AVIATION...TORNADOES AND 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
500. MEAN STORM MOTION VECTOR 24050.


...HALES
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