SPC Severe Thunderstorm Watch 322

WW 322 SEVERE TSTM CO KS NE WY 172025Z – 180400Z


URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 322
NWS STORM PREDICTION CENTER NORMAN OK
225 PM MDT MON JUN 17 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
  EASTERN COLORADO
  FAR WESTERN KANSAS
  WESTERN NEBRASKA
  SOUTHEAST WYOMING

* EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 225 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 70 MPH POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80
STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES NORTH OF
TORRINGTON WYOMING TO 20 MILES SOUTH SOUTHEAST OF SPRINGFIELD
COLORADO.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).

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 321...

DISCUSSION...AT LEAST WIDELY SCATTERED TSTMS ARE EXPECTED TO
INCREASE THROUGH MID/LATE AFTERNOON ACROSS THE CO/SOUTHEAST WY FRONT
RANGE INTO THE ADJACENT HIGH PLAINS. VEERING WIND PROFILES AND A
RELATIVELY MOIST AIRMASS/MODERATE INSTABILITY WILL RESULT IN
SUPERCELLS/SUSTAINED MULTICELLS CAPABLE OF LARGE HAIL. AS STORMS
SPREAD EAST-SOUTHEASTWARD...THE DEVELOPMENT OF ONE OR MORE MCS/S MAY
OCCUR BY EARLY/MID EVENING...WITH MORE OF A DAMAGING WIND THREAT
POSSIBLE.

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 30025.


...GUYER

via SPC Forecast Products http://www.spc.noaa.gov/products/watch/ww0322.html