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WWUS20 KWNS 031916

SEL5

SPC WW 031916

COZ000-040300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 435

NWS STORM PREDICTION CENTER NORMAN OK

120 PM MDT TUE JUN 3 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EASTERN COLORADO



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 120 PM UNTIL

900 PM MDT.



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 65

STATUTE MILES EAST AND WEST OF A LINE FROM 55 MILES NORTH OF

AKRON COLORADO TO 35 MILES WEST SOUTHWEST OF SPRINGFIELD

COLORADO.  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 434...



DISCUSSION...THUNDERSTORMS WILL BECOME MORE WIDESPREAD OVER ERN CO

THIS AFTERNOON/EVENING AHEAD OF SHORTWAVE TROUGH NOW MOVING ACROSS

THE ROCKIES.  ALTHOUGH LOW LEVEL FLOW IS NOT PARTICULARLY

STRONG...DEEP LAYER SHEAR WILL BE SUFFICIENT FOR ORGANIZED

CLUSTERS/SUPERCELLS UNDER MODEST WLY FLOW ALOFT.  LARGE HAIL IS

EXPECTED TO BE PRIMARY SEVERE THREAT...ALONG WITH ISOLATED DAMAGING

WINDS.



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 450. MEAN STORM

MOTION VECTOR 27025.





...EVANS

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