SEL0
SPC WW 231824
IAZ000-KSZ000-MOZ000-NEZ000-240100-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 290
NWS STORM PREDICTION CENTER NORMAN OK
125 PM CDT WED MAY 23 2007
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHWEST IOWA
CENTRAL AND NORTHEAST KANSAS
NORTHWEST MISSOURI
SOUTHEAST NEBRASKA
EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 125 PM UNTIL
800 PM CDT.
HAIL TO 2 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 55
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES WEST
NORTHWEST OF MEDICINE LODGE KANSAS TO 30 MILES EAST OF SHENANDOAH
IOWA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).
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.
DISCUSSION...LINE OF INTENSE THUNDERSTORMS IS INCREASING FROM WEST
OF ICT TO SOUTH OF OMA. DESPITE RATHER WEAK FORCING...SUFFICIENT
INSTABILITY AND VERTICAL SHEAR WILL SUPPORT A RISK OF A FEW SEVERE
THUNDERSTORMS CAPABLE OF LARGE HAIL AND DAMAGING WINDS. ACTIVITY
MAY SPREAD AS FAR NORTHEAST AS SOUTHWEST IA AND NORTHWEST MO THIS
AFTERNOON AND EVENING.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 25030.
..HART
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