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WWUS20 KWNS 030031

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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 226

NWS STORM PREDICTION CENTER NORMAN OK

735 PM CDT WED MAY 2 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTH CENTRAL KANSAS

       SOUTH CENTRAL INTO EASTERN NEBRASKA



EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 735 PM

UNTIL 200 AM CDT.



HAIL TO 2.5 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 EAST AND WEST OF A LINE FROM 25 MILES NORTHEAST OF

NORFOLK NEBRASKA TO 30 MILES EAST SOUTHEAST OF HILL CITY KANSAS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU6).



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 225...



DISCUSSION...STORMS ARE DEVELOPING QUICKLY ALONG A RETREATING

BOUNDARY IN CENTRAL NEB...AND FARTHER S NEAR A WEAK TRIPLE POINT IN

NRN KS.  THE ENVIRONMENT IS FAVORABLE FOR SUPERCELLS WITH LARGE HAIL

INITIALLY.  THERE WILL BE SOME POTENTIAL FOR UPSCALE GROWTH INTO A

CLUSTER OR TWO BY EARLY TONIGHT...WITH AN ATTENDANT RISK FOR

DAMAGING WINDS.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 24025.





...THOMPSON

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