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558 

WWUS20 KWNS 172029

SEL0

SPC WW 172029

COZ000-180500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 490

NWS STORM PREDICTION CENTER NORMAN OK

230 PM MDT MON AUG 17 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  EASTERN COLORADO



* EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 230 PM UNTIL

  1100 PM MDT.



* PRIMARY THREATS INCLUDE...

  A FEW TORNADOES POSSIBLE

  SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS

    TO 2.5 INCHES IN DIAMETER POSSIBLE

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE



SUMMARY...THUNDERSTORMS EXPECTED TO MOVE / DEVELOP EAST FROM THE CO

FRONT RANGE THROUGH EARLY THIS EVENING...WITH ADDITIONAL STORMS

POSSIBLY FORMING FARTHER EAST ACROSS THE ADJACENT HIGH PLAINS. A FEW

SUPERCELLS WITH VERY LARGE HAIL...LOCALLY DAMAGING WIND...AND A FEW

TORNADOES APPEAR LIKELY. THE STORMS SHOULD EVOLVE INTO ONE OR TWO

CLUSTERS LATER TONIGHT.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE

MILES EAST AND WEST OF A LINE FROM 50 MILES NORTHEAST OF FORT

COLLINS COLORADO TO 10 MILES EAST SOUTHEAST OF LA JUNTA COLORADO.

 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU0).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND 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.



&&



AVIATION...TORNADOES AND 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 30025.





...CORFIDI

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