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419 

WWUS20 KWNS 222355

SEL8

SPC WW 222355

COZ000-NEZ000-WYZ000-230600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 348

NWS STORM PREDICTION CENTER NORMAN OK

555 PM MDT SUN JUN 22 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTHEASTERN COLORADO

  NEBRASKA PANHANDLE

  SOUTHEASTERN WYOMING



* EFFECTIVE THIS SUNDAY AFTERNOON FROM 555 PM UNTIL MIDNIGHT MDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED SIGNIFICANT DAMAGING WIND GUSTS TO 75 MPH POSSIBLE

  ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH

NORTHEAST OF DOUGLAS WYOMING TO 35 MILES SOUTH SOUTHWEST OF AKRON

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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 345...WW 346...WW 347...



DISCUSSION...SVR-WIND THREAT EXPECTED TO SHIFT EWD WITH ARC OF TSTMS

MOVING EWD FROM SERN WY MTNS.  ADDITIONAL CONVECTION NOW IN PLACE

OVER NERN CO...AND POTENTIALLY DEVELOPING ALONG BOUNDARIES FARTHER E

AND SE...MAY OFFER LARGE HAIL AND ISOLATED DAMAGING GUSTS BEFORE

ENCOUNTERING STABLE OUTFLOW AIR.  REF SPC MESOSCALE DISCUSSION 1123

FOR INITIAL DETAILS.



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 500. MEAN STORM

MOTION VECTOR 28030.





...EDWARDS

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