

000 

WWUS20 KWNS 262153

SEL1

SPC WW 262153

KSZ000-NEZ000-270600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 611

NWS STORM PREDICTION CENTER NORMAN OK

455 PM CDT THU JUN 26 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHERN AND EASTERN KANSAS

       SOUTHERN NEBRASKA



EFFECTIVE THIS THURSDAY AFTERNOON AND FRIDAY MORNING FROM 455 PM

UNTIL 100 AM CDT.



HAIL TO 2.5 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 60

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 65 MILES NORTHWEST

OF RUSSELL KANSAS TO 10 MILES SOUTH OF LEAVENWORTH KANSAS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU1).



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 610...



DISCUSSION...TSTMS NOW FORMING ON WNW/ESE OUTFLOW BOUNDARY IN N

CNTRL/NE KS EXPECTED TO INCREASE IN STRENGTH/COVERAGE THROUGH THIS

EVENING...IN  EXIT REGION OF 20+ KT MOIST SSWLY LLJ.  COUPLED WITH

MODEST WNW MID LVL FLOW AND SBCAPE AOA 4000 J/KG...SETUP MAY SUPPORT

A FEW SUSTAINED STORMS AND/OR BRIEFLY ROTATING STRUCTURES WITH LARGE

HAIL/HIGH WIND.  STORMS MAY MERGE INTO AN MCS THAT SHOULD MOVE

MAINLY SSE LATER THIS EVENING.



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

TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

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

MOTION VECTOR 34015.





...CORFIDI

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