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Severe Thunderstorm Watch 372
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WW0372 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.
   SEL2

   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 372
   NWS STORM PREDICTION CENTER NORMAN OK
   405 AM CDT MON JUN 30 2014

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     WESTERN AND CENTRAL IOWA
     EASTERN NEBRASKA
     EXTREME SOUTHEASTERN SOUTH DAKOTA

   * EFFECTIVE THIS MONDAY MORNING FROM 405 AM UNTIL NOON CDT.

   * PRIMARY THREATS INCLUDE...
     SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
     ISOLATED VERY LARGE HAIL EVENTS TO 2.5 INCHES IN DIAMETER
       POSSIBLE
     A TORNADO OR TWO POSSIBLE

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 20 MILES NORTH OF
   COLUMBUS NEBRASKA TO 35 MILES EAST NORTHEAST OF KNOXVILLE IOWA. 
   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 371...

   DISCUSSION...MRGL SVR THREAT MAY CONTINUE WITH BOWING CLUSTER OF
   TSTMS MOVING SEWD ACROSS N-CENTRAL IA.  ITS OUTFLOW BOUNDARY MAY
   FOCUS/DELIMIT SVR POTENTIAL FOR LATER THIS MORNING WITH CLUSTERS OF
   TSTMS EVOLVING ACROSS ERN NEB.  NEB ACTIVITY WILL MOVE THROUGH
   ENVIRONMENT CHARACTERIZED BY VERY STEEP LAPSE RATES AND RICH
   SFC-850-MB MOISTURE SUPPORTING MUCAPE IN 2000-3500 J/KG
   RANGE...LIKELY PERSISTING INTO WRN AND PERHAPS CENTRAL IA.  REF SPC
   MESOSCALE DISCUSSION 1209 FOR MORE INITIAL DETAILS.

   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
   MOTION VECTOR 27030.


   ...EDWARDS
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Page last modified: June 30, 2014
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