Tornado Watch 453

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 453
NWS STORM PREDICTION CENTER NORMAN OK
540 PM CDT WED JUN 4 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SOUTHERN HALF OF IOWA
PARTS OF EASTERN NEBRASKA
EFFECTIVE THIS WEDNESDAY AFTERNOON FROM 540 PM UNTIL MIDNIGHT CDT.
TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 35 MILES SOUTHWEST OF
TEKAMAH NEBRASKA TO 45 MILES SOUTHEAST OF CEDAR RAPIDS IOWA. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU3).
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.
OTHER WATCH INFORMATION...CONTINUE...
WW 447
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WW 448
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WW
449
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WW 450
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WW 451
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WW 452
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DISCUSSION...THUNDERSTORMS DEVELOPING VICINITY E/W WARM FRONT WHERE
AIR MASS IS VERY WARM AND UNSTABLE. FAVORABLE VEERING SHEAR
PROFILES AND LOW LCLS SUPPORT TORNADIC SUPERCELLS AS ACTIVITY
DEVELOPS NWD THRU SRN IA/ERN NE.
AVIATION...TORNADOES AND 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 24025.
...HALES