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COZ000-KSZ000-NEZ000-040700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 464

NWS STORM PREDICTION CENTER NORMAN OK

630 PM CDT SAT SEP 3 2016



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  EXTREME EASTERN COLORADO

  NORTHWESTERN KANSAS

  EXTREME SOUTHERN NEBRASKA



* EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 630 PM

  UNTIL 200 AM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A TORNADO OR TWO POSSIBLE



SUMMARY...INCREASING THUNDERSTORM COVERAGE AND ORGANIZATION IS

POSSIBLE OVER THE WATCH AREA DURING THE NEXT FEW HOURS INTO LATE

EVENING...LEADING TO POTENTIALLY GREATER ORGANIZATION OF CURRENTLY

ISOLATED SEVERE-STORM POTENTIAL.  HAIL AND GUSTS ARE THE MAIN

CONCERNS...THOUGH A BRIEF TORNADO CANNOT BE RULED OUT NEAR A

MESOSCALE BOUNDARY IN NORTHWESTERN KANSAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES EITHER SIDE OF A LINE FROM 20 MILES NORTH NORTHWEST

OF BURLINGTON COLORADO TO 40 MILES EAST NORTHEAST OF HILL CITY

KANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).



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 550. MEAN STORM

MOTION VECTOR 26020.





...EDWARDS

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