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913 

WWUS20 KWNS 032043

SEL5

SPC WW 032043

COZ000-NMZ000-OKZ000-TXZ000-040400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 465

NWS STORM PREDICTION CENTER NORMAN OK

240 PM MDT SAT AUG 3 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  THE SOUTHEAST QUARTER OF COLORADO

  PARTS OF NORTHEAST NEW MEXICO

  WESTERN PARTS OF THE OKLAHOMA PANHANDLE

  NORTHWESTERN PORTIONS OF THE TEXAS PANHANDLE



* EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 240 PM UNTIL

  1000 PM MDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2

    INCHES IN DIAMETER POSSIBLE

  SEVERAL DAMAGING WIND GUSTS TO 65 MPH POSSIBLE

  A FEW TORNADOES POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80

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

PUEBLO COLORADO TO 15 MILES SOUTH SOUTHWEST OF CLAYTON NEW

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

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 463...WW 464...



DISCUSSION...ISOLATED STORMS CONTINUE TO DEVELOP ACROSS PORTIONS OF

SOUTHEAST COLORADO AND ADJACENT NORTHEAST NEW MEXICO...WHERE

MODERATE INSTABILITY HAS DEVELOPED IN CONJUNCTION WITH DIURNAL

HEATING OF THE MOIST BOUNDARY-LAYER AIRMASS.  WITH AMPLE SHEAR FOR

ORGANIZED STORMS ACROSS THE REGION...LARGE HAIL AND DAMAGING WINDS

WILL BE POSSIBLE WITH STRONGER CELLS.  UPSCALE GROWTH INTO AN MCS IS

POSSIBLE WITH TIME -- WITH SOME CORRESPONDING INCREASE IN DAMAGING

WIND POTENTIAL.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 55

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 27015.





...GOSS

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