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WWUS20 KWNS 232002

SEL7

SPC WW 232002

COZ000-KSZ000-NEZ000-SDZ000-240400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 447

NWS STORM PREDICTION CENTER NORMAN OK

305 PM CDT THU JUL 23 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTHEAST COLORADO

  NORTHWEST KANSAS

  WESTERN AND CENTRAL NEBRASKA

  SOUTH CENTRAL SOUTH DAKOTA



* EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 305 PM UNTIL

  1100 PM CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75

    MPH POSSIBLE

  SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2

    INCHES IN DIAMETER POSSIBLE



SUMMARY...THUNDERSTORMS EXPECTED TO FORM / INCREASE ALONG MERGING

LEE TROUGH / DRY LINE SEGMENTS EXTENDING FROM NE CO INTO N CENTRAL

NEB. POTENTIAL WILL EXIST FOR A FEW SUPERCELLS WITH LOCALLY DAMAGING

WIND AND LARGE HAIL...WITH THE STORMS MERGING INTO A LINE OR TWO

THIS EVENING.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70

STATUTE MILES EAST AND WEST OF A LINE FROM 75 MILES NORTH

NORTHEAST OF AINSWORTH NEBRASKA TO 20 MILES EAST SOUTHEAST OF

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

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).



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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 446...



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 28025.





...CORFIDI

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