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549 

WWUS20 KWNS 120400

SEL9

SPC WW 120400

COZ000-KSZ000-121100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 919

NWS STORM PREDICTION CENTER NORMAN OK

1000 PM MDT SAT OCT 11 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EAST CENTRAL AND SOUTHEAST COLORADO

       FAR WESTERN KANSAS



EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 1000 PM

UNTIL 500 AM MDT.



HAIL TO 1 INCH 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 50

STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES SOUTH

SOUTHWEST OF SPRINGFIELD COLORADO TO 80 MILES NORTH NORTHEAST OF

LAMAR COLORADO.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).



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 917...WW 918...



DISCUSSION...SUSTAINED STORMS/SMALL SUPERCELLS EXPECTED TO CONTINUE

RAPIDLY NNE ALONG SSW-NNE CONFLUENCE AXIS EXTENDING FROM NE NM INTO

SE CO.  STRENGTH OF LOW TO MID LVL SHEAR AND RECOVERING BOUNDARY

LAYER WARMTH/MOISTURE NWWD INTO SE CO/FAR WRN KS SUGGEST POTENTIAL

FOR ISOLD DMG WIND GUSTS...MARGINALLY SVR HAIL AND PERHAPS A BRIEF

TORNADO.



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

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400. MEAN STORM MOTION

VECTOR 21050.





...CORFIDI

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