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WWUS20 KWNS 072104

SEL8

SPC WW 072104

COZ000-KSZ000-NEZ000-080500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 478

NWS STORM PREDICTION CENTER NORMAN OK

305 PM MDT FRI AUG 7 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  EASTERN COLORADO

  NORTHWEST KANSAS

  WESTERN NEBRASKA



* EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 305 PM UNTIL

  1100 PM MDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2

    INCHES IN DIAMETER POSSIBLE

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A TORNADO OR TWO POSSIBLE



SUMMARY...STORMS ARE EXPECTED TO CONTINUE DEVELOPING THROUGH THE

EVENING WITH SUPERCELLS AND MULTICELLS CAPABLE OF PRODUCING LARGE

HAIL AND DAMAGING WIND. A FEW TORNADOES CANNOT BE RULED

OUT...ESPECIALLY DURING THE EARLY EVENING FROM NERN CO INTO NWRN KS

AND SWRN NEB.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 85

STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTH

NORTHWEST OF MULLEN NEBRASKA TO 25 MILES SOUTH OF LA JUNTA

COLORADO.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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.



&&



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 500. MEAN STORM

MOTION VECTOR 23035.





...DIAL

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