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Severe Thunderstorm Watch 473
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WW0473 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Moderate Moderate

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL3

   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 473
   NWS STORM PREDICTION CENTER NORMAN OK
   325 PM CDT FRI AUG 22 2014

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     NORTHEAST COLORADO
     NORTHWEST KANSAS
     SOUTHWEST AND SOUTH-CENTRAL NEBRASKA

   * EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 325 PM UNTIL
     1100 PM CDT.

   * PRIMARY THREATS INCLUDE...
     ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE
     ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
     A TORNADO OR TWO POSSIBLE

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 45 MILES SOUTH
   SOUTHWEST OF AKRON COLORADO TO 5 MILES EAST SOUTHEAST OF GRAND
   ISLAND NEBRASKA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).

   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.

   &&

   DISCUSSION...THUNDERSTORMS ARE EXPECTED TO INCREASE IN COVERAGE AND
   INTENSITY TO THE NORTH OF A SURFACE LOW AND ASSOCIATED STATIONARY
   FRONT AS DEEP-LAYER ASCENT IS ENHANCED BY THE APPROACH OF A
   SHORT-WAVE TROUGH. THE COMBINATION OF A MOIST AND MODERATELY
   UNSTABLE AIR MASS AND VERTICALLY VEERING WIND PROFILE WILL PROMOTE
   ORGANIZED STORM MODES INCLUDING SUPERCELLS CAPABLE OF LARGE HAIL AND
   PERHAPS A TORNADO OR TWO. WITH TIME...STORMS MAY GROW UPSCALE INTO A
   NORTHEAST-MOVING BOWING MCS CAPABLE OF DAMAGING WINDS AND HAIL.

   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 23025.


   ...MEAD
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Page last modified: August 23, 2014
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