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000 

WWUS20 KWNS 280117

SEL6

SPC WW 280117

ILZ000-KSZ000-MOZ000-280900-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 626

NWS STORM PREDICTION CENTER NORMAN OK

815 PM CDT FRI JUN 27 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       WESTERN ILLINOIS

       EASTERN KANSAS

       NORTHERN AND CENTRAL MISSOURI



EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 815 PM

UNTIL 400 AM CDT.



HAIL TO 3 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 65

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES SOUTH

SOUTHWEST OF MANHATTAN KANSAS TO 35 MILES EAST SOUTHEAST OF

QUINCY ILLINOIS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).



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...THIS SEVERE THUNDERSTORM WATCH REPLACES

SEVERE THUNDERSTORM WATCH NUMBER 622. WATCH NUMBER 622 WILL NOT

BE IN EFFECT AFTER 815 PM CDT. CONTINUE...WW 621...WW 623...WW

624...WW 625...



DISCUSSION...OVERALL MOVEMENT OF NRN MO QLCS EXPECTED TO BE

GENERALLY SE THROUGH LATE EVENING.  HOWEVER...FORWARD-PROPAGATING

SEGMENTS ON ERN END OF SYSTEM MAY RESULT IN THAT PART HEADING MORE

ESEWD...WITH AN ATTENDANT THREAT FOR SVR WIND/HAIL INTO NE MO AND

PERHAPS WRN IL...DESPITE LESSENING SBCAPE WITH EWD EXTENT/TIME.  WRN

END OF MCS MAY BACKBUILD THIS EVENING INTO ERN KS AS LLJ VEERS AND

STRENGTHENS.  GIVEN QUALITY OF UPSTREAM MOISTURE/INSTABILITY

...POTENTIAL WILL EXIST FOR VERY LARGE HAIL AND HIGH WIND.  SMALL

PORTIONS OF THIS END OF THE MCS ALSO MAY SURGE S LATER TONIGHT/EARLY

SATURDAY.



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

TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

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

MOTION VECTOR 33030.





...CORFIDI

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