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WWUS20 KWNS 272054

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KSZ000-OKZ000-TXZ000-280500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 305

NWS STORM PREDICTION CENTER NORMAN OK

355 PM CDT SUN MAY 27 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       CENTRAL AND WESTERN KANSAS

       NORTHWESTERN OKLAHOMA AND EASTERN OKLAHOMA PANHANDLE

       NORTHEASTERN PARTS OF TEXAS PANHANDLE



EFFECTIVE THIS SUNDAY AFTERNOON FROM 355 PM UNTIL MIDNIGHT CDT.



HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTH

SOUTHWEST OF GAGE OKLAHOMA TO 45 MILES NORTHWEST OF CONCORDIA

KANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 303...WW 304...



DISCUSSION...CONVECTION CONTINUES TO DEEPEN ALONG DRYLINE WITH

POTENTIAL FOR BROKEN BAND OF STG-SVR TSTMS TO DEVELOP THROUGH

REMAINDER AFTERNOON/EVENING.  FAVORABLE BUOYANCY IN PROSPECTIVE

INFLOW-LAYER AIR MASS AND 35-50 KT EFFECTIVE SHEAR MAGNITUDE SUPPORT

RISK OF DAMAGING GUSTS AND OCCASIONAL LARGE HAIL.



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

TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. MEAN STORM

MOTION VECTOR 22025.





...EDWARDS

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