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000 

WWUS20 KWNS 101929

SEL1

SPC WW 101929

IAZ000-KSZ000-MOZ000-NEZ000-110200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 191

NWS STORM PREDICTION CENTER NORMAN OK

230 PM CDT THU APR 10 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       PARTS OF SOUTHERN IOWA

       PARTS OF EASTERN KANSAS

       MUCH OF CENTRAL AND WESTERN MISSOURI

       SMALL PART OF SOUTHEAST NEBRASKA



EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 230 PM UNTIL

900 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 100

STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES WEST

NORTHWEST OF DES MOINES IOWA TO 10 MILES SOUTH OF SPRINGFIELD

MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



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 189...WW 190...



DISCUSSION...STRONG SURFACE/UPPER LOW WILL BE ROTATING NEWD THRU KS

INTO ERN NE/IA THIS EVENING. VERY STRONG DEEP LAYER SHEAR AND

MARGINAL INSTABILITY WILL SUPPORT DEVELOPMENT OF SEVERE

THUNDERSTORMS ALONG LEADING EDGE OF DRIER AIR MOVING THRU ERN KS.

PRIMARY THREAT WILL BE DAMAGING WINDS/LARGE HAIL AS STORMS INCREASE

IN NUMBER AND INTENSITY MOVING RAPIDLY NNEWD THRU THE WATCH.



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 450. MEAN STORM

MOTION VECTOR 21045.





...HALES

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