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381 

WWUS20 KWNS 182236

SEL5

SPC WW 182236

KSZ000-NEZ000-190600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 505

NWS STORM PREDICTION CENTER NORMAN OK

535 PM CDT SAT JUN 18 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       WESTERN KANSAS

       WESTERN AND CENTRAL NEBRASKA



EFFECTIVE THIS SATURDAY AFTERNOON AND SUNDAY MORNING FROM 535 PM

UNTIL 100 AM 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 70

STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES NORTHWEST OF

BROKEN BOW NEBRASKA TO 25 MILES WEST SOUTHWEST OF GARDEN CITY

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 501...WW 502...WW

503...WW 504...



DISCUSSION...TWO TSTM CLUSTERS WITH EMBEDDED SUSTAINED

STORMS/SUPERCELLS...ONE OVER THE ERN NEB PANHANDLE AND THE OTHER

OVER ERN CO...EXPECTED TO CONTINUE GENERALLY E THROUGH MID EVE.

AREA SHEAR AND INSTABILITY OVER THE LWR TERRAIN SHOULD REMAIN

SUPPORTIVE OF ISOLD SVR HAIL...DMGG WIND GUSTS...AND PERHAPS A

TORNADO.  OTHER STORMS MAY FORM ALONG WEAK FRONT ARCING W-E ACROSS

SRN NEB AS WAA INCREASES OVER REGION THIS EVE.



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 500. MEAN STORM

MOTION VECTOR 28025.





...CORFIDI

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