Friday, April 10, 2009

T-storm Watch for West KY till 9am

SEL9

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 129
NWS STORM PREDICTION CENTER NORMAN OK
120 AM CDT FRI APR 10 2009

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

SOUTHERN INDIANA
WESTERN AND CENTRAL KENTUCKY
WESTERN AND MIDDLE TENNESSEE

EFFECTIVE THIS FRIDAY MORNING FROM 120 AM UNTIL 900 AM CDT.

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 75
STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES SOUTHEAST OF
JACKSON TENNESSEE TO 45 MILES NORTHEAST OF EVANSVILLE INDIANA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU9).

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 127...WW 128...

DISCUSSION...FAR WRN KY/TN SQLN EXPECTED TO CONTINUE ENE IN ZONE OF
STRONG ASCENT IN EXIT REGION OF 70 KT MID LVL JET STREAK. AREA WIND
PROFILES...GRADUALLY INCREASING MOISTURE AVAILABILITY...AND
RELATIVELY LARGE LOW-LVL TEMP-DEW POINT SPREADS SUGGEST CONTINUED
CHANCE FOR LOCALLY DMGG WIND/MARGINALLY SVR HAIL...AND PERHAPS AN
ISOLD TORNADO.

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 400. MEAN STORM MOTION
VECTOR 26060.


...CORFIDI

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