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635 

WWUS20 KWNS 302059

SEL3

SPC WW 302059

KSZ000-NEZ000-310400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 323

NWS STORM PREDICTION CENTER NORMAN OK

400 PM CDT WED MAY 30 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       MUCH OF KANSAS

       SOUTH CENTRAL NEBRASKA



EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 400 PM UNTIL

1100 PM CDT.



HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80

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



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 130

STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH OF HILL

CITY KANSAS TO 15 MILES SOUTH OF MEDICINE LODGE KANSAS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU3).



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 321...WW 322...



DISCUSSION...STORMS ARE DEVELOPING OVER NWRN/NORTH CENTRAL AND

CENTRAL KS...WHILE CONTINUING OVER SOUTH CENTRAL NEBRASKA.  THE AIR

MASS IS VERY UNSTABLE WITH CAPE TO 2500-3500 J/KG...AND FAVORABLE

DIRECTIONAL SHEAR IS PRESENT TO SUPPORT SUPERCELLS.  VERY STRONG

WIND GUSTS AND SIGNIFICANT HAIL WILL BE POSSIBLE WITH STRONGER

CELLS...AND AN ISOLATED TORNADO CANNOT BE RULES OUT DESPITE HIGH LCL

HEIGHTS.  THE STORMS ARE LIKELY TO GROW UPSCALE INTO ONE OR MORE

MCS/S BY THIS EVENING WITH AN INCREASING THREAT FOR WIDESPREAD WIND

DAMAGE IN ADDITION TO A CONTINUING THREAT FOR VERY LARGE HAIL.



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

TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70

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

MOTION VECTOR 28025.





...WEISS

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