Sunday, May 25, 2008

Severe Thunderstorm Watch 364

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 364
NWS STORM PREDICTION CENTER NORMAN OK
400 PM CDT SUN MAY 25 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
PARTS OF SOUTHWEST ILLINOIS
PARTS OF EASTERN MISSOURI
EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 400 PM UNTIL
1000 PM CDT.
HAIL TO 3 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 60
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 45 MILES SOUTHWEST
OF KIRKSVILLE MISSOURI TO 20 MILES SOUTH SOUTHEAST OF MOUNT
VERNON ILLINOIS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
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 357
...
WW 358
...
WW
359
...
WW 360
...
WW 361
...
WW 363
...
WW 362
...
DISCUSSION...SEVERE THUNDERSTORMS EXPECTED TO DEVELOP ALONG BOUNDARY
FROM NCENTRAL MO TO SWRN IL. VERY UNSTABLE AIRMASS WITH MLCAPES AOA
3000 J/KG COUPLED WITH 40KT OF SHEAR SUPPORT POTENTIAL FOR ROTATING
STORMS WITH LARGE HAIL PRIMARY THREAT.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 24020.
...HALES

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