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Severe Thunderstorm Watch 72
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WW0072 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Very Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
High 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 72
   NWS STORM PREDICTION CENTER NORMAN OK
   940 PM CDT SAT APR 12 2014

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     WEST-CENTRAL THROUGH EASTERN IOWA
     EXTREME NORTHERN ILLINOIS
     SOUTHERN WISCONSIN
     LAKE MICHIGAN

   * EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 940 PM
     UNTIL 500 AM CDT.

   * PRIMARY THREATS INCLUDE...
     SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS
       TO 2 INCHES IN DIAMETER POSSIBLE
     SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75
       MPH POSSIBLE

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 55 MILES SOUTH OF
   STORM LAKE IOWA TO 20 MILES NORTH NORTHEAST OF MILWAUKEE
   WISCONSIN.  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...THIS SEVERE THUNDERSTORM WATCH REPLACES
   SEVERE THUNDERSTORM WATCH NUMBER 70. WATCH NUMBER 70 WILL NOT BE
   IN EFFECT AFTER 940 PM CDT. CONTINUE...WW 71...

   DISCUSSION...WW 70 IS BEING REPLACED DUE TO CONTINUATION OF SEVERE
   HAIL/WIND THREAT INTO OVERNIGHT HOURS.  SCATTERED-NUMEROUS TSTMS
   ACROSS WRN/NRN PORTIONS OF NEW WW AREA...INCLUDING A FEW
   SUPERCELLS...WILL PRODUCE LARGE HAIL INVOF PERSISTENT LOW-LEVEL
   BAROCLINIC ZONE.  THIS ACTIVITY MAY AGGREGATE UPSCALE INTO
   BETTER-ORGANIZED MCS...IN WHICH CASE DAMAGING-WIND THREAT WOULD
   INCREASE EWD ACROSS IA...SRN WI...AND NRN IL.  SEE SPC MESOSCALE
   DISCUSSION 329 FOR MORE INITIAL DETAILS.

   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 27030.


   ...EDWARDS
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Page last modified: April 13, 2014
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