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Tornado Watch 327
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WW0327 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Moderate
Severe Wind 65 kt+ Wind
Moderate Moderate
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.
   SEL7

   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 327
   NWS STORM PREDICTION CENTER NORMAN OK
   625 PM CDT WED JUN 18 2014

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * TORNADO WATCH FOR PORTIONS OF 
     EXTREME NORTHWESTERN IOWA
     EXTREME SOUTHWESTERN MINNESOTA
     NORTHEASTERN NEBRASKA
     SOUTHEASTERN SOUTH DAKOTA

   * EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 625 PM
     UNTIL 200 AM CDT.

   * PRIMARY THREATS INCLUDE...
     A FEW TORNADOES AND A COUPLE INTENSE TORNADOES POSSIBLE
     SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 3
       INCHES IN DIAMETER POSSIBLE
     ISOLATED SIGNIFICANT DAMAGING WIND GUSTS TO 75 MPH POSSIBLE

   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE
   MILES NORTH AND SOUTH OF A LINE FROM 60 MILES WEST SOUTHWEST OF
   MITCHELL SOUTH DAKOTA TO 35 MILES EAST SOUTHEAST OF SIOUX FALLS
   SOUTH DAKOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
   TORNADOES AND 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.

   &&

   OTHER WATCH INFORMATION...CONTINUE...WW 321...WW 322...WW
   323...WW 324...WW 325...WW 326...

   DISCUSSION...TORNADIC SUPERCELL IS EXPECTED TO MOVE EWD OUT OF WW
   322 SOON INTO NWRN PART OF THIS WW...WHILE ADDITIONAL DVLPMT IS PSBL
   BETWEEN THAT AND HIGHER-BASED ACTIVITY NOW STRENGTHENING RAPIDLY
   OVER ONL AREA S OF WARM/COLD FRONTAL TRIPLE POINT.  ANY SUPERCELLS
   INTERACTING WITH VORTICITY-LADEN WARM FRONTAL ZONE MAY PRODUCE
   SIGNIFICANT TORNADOES...BUT ALSO EVOLVE INTO HEAVY-PRECIP MODE
   RATHER QUICKLY GIVEN WEAK STORM-RELATIVE MID-UPPER WINDS.  LOW-LEVEL
   HODOGRAPHS ARE FCST TO REMAIN LARGE...ESPECIALLY ALG/N OF WARM FRONT
   NEAR NEB/SD BORDER.  UPSCALE GROWTH INTO MCS IS PSBL AS WELL.

   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   650. MEAN STORM MOTION VECTOR 24020.


   ...EDWARDS
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Page last modified: June 19, 2014
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