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160 

WWUS20 KWNS 172324

SEL4

SPC WW 172324

KSZ000-180700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 494

NWS STORM PREDICTION CENTER NORMAN OK

525 PM MDT FRI JUN 17 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       WESTERN KANSAS



EFFECTIVE THIS FRIDAY AFTERNOON AND SATURDAY MORNING FROM 525 PM

UNTIL 100 AM MDT.



HAIL TO 1.5 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 45

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

NORTHEAST OF GOODLAND KANSAS TO 80 MILES SOUTH SOUTHEAST OF

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

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).



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 492...WW 493...



DISCUSSION...SUPERCELLS/SUSTAINED STORMS IN E CNTRL CO EXPECTED TO

CONTINUE MOVING EWD.  WHILE SOME WEAKENING MAY OCCUR AS STORMS

ENCOUNTER CORRIDOR OF DRIER AIR/NELY LOW LVL FLOW OVER PARTS OF NW

KS...SOME STRENGTHENING AND/OR ADDITIONAL DEVELOPMENT MAY OCCUR

LATER THIS EVE AS LOW LVL FLOW IN WRN KS VEERS TO A MORE ELY

DIRECTION...SPREADING INCREASING MOISTURE INTO WW REGION.



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

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 24035.





...CORFIDI

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