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WWUS20 KWNS 132037

SEL2

SPC WW 132037

KSZ000-140000-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 312

NWS STORM PREDICTION CENTER NORMAN OK

340 PM CDT SUN JUN 13 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHERN KANSAS



EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 340 PM UNTIL 700

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 40

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 50 MILES WEST OF

HILL CITY KANSAS TO 45 MILES EAST SOUTHEAST OF CONCORDIA KANSAS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU2).



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 309...WW 310...WW 311...



DISCUSSION...STORMS ARE INCREASING ALONG/NEAR DEEP-LAYER SYNOPTIC

BOUNDARY DRAPED ACROSS NCNTRL KS. AIRMASS SOUTH AND WEST OF THIS

DEVELOPMENT IS CONTINUING TO RECOVER AND SHOULD FUEL ROBUST UPDRAFTS

IN AN ENVIRONMENT CHARACTERIZED BY 40-50KT EFFECTIVE SHEAR. IN

ADDITION TO LARGE HAIL...LOCALIZED DAMAGING WINDS ARE POSSIBLE AS

STORMS INCREASE IN INTENSITY AND ORGANIZATION NEXT FEW HOURS.



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 500. MEAN STORM

MOTION VECTOR 23025.





...CARBIN

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