

230 

WWUS20 KWNS 222017

SEL6

SPC WW 222017

COZ000-230300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 346

NWS STORM PREDICTION CENTER NORMAN OK

215 PM MDT SUN JUN 22 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  EAST CENTRAL AND SOUTHEAST COLORADO



* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 215 PM UNTIL

  900 PM MDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH LIKELY

  SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2

    INCHES IN DIAMETER POSSIBLE

  A TORNADO OR TWO POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES NORTHEAST OF

LIMON COLORADO TO 30 MILES WEST SOUTHWEST OF SPRINGFIELD

COLORADO.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).



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...



DISCUSSION...DISCRETE STORMS HAVE DEVELOPED TO THE SOUTH OF DEN AND

EAST OF COS...WITH OTHER STORMS LIKELY TO DEVELOP EWD OFF THE ERN

SLOPES AND OVER THE HIGH PLAINS THIS AFTERNOON.  AIR MASS MOISTURE

INCREASES OVER THE PLAINS WITH CAPE TO 1500 J/KG.  WESTERLY

MID-LEVEL FLOW OF 20-30 KT IS PROVIDING SUFFICIENT SHEAR FOR

ORGANIZED STORMS WITH THREATS FOR LARGE HAIL AND DAMAGING WINDS.

THERE IS POTENTIAL FOR STORMS TO GROW UPSCALE INTO AN EWD/SEWD

MOVING QLCS LATER THIS AFTERNOON WITH A COINCIDENT THREAT FOR MORE

WIDESPREAD WIND DAMAGE AS THE SYSTEM MOVES TOWARD THE KS BORDER.



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 28025.





...WEISS

