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Severe Thunderstorm Watch 152
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WW0152 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 152
   NWS STORM PREDICTION CENTER NORMAN OK
   350 PM CDT MON MAY 12 2014

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     FAR NORTHEAST IOWA
     NORTHERN ILLINOIS
     SOUTHERN WISCONSIN
     LAKE MICHIGAN

   * EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 350 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 50
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 35 MILES SOUTHWEST
   OF LONEROCK WISCONSIN TO 5 MILES NORTH NORTHEAST OF RACINE
   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...CONTINUE...WW 149...WW 150...WW 151...

   DISCUSSION...TSTMS HAVE RECENTLY RE-DEVELOPED ALONG AN OUTFLOW
   BOUNDARY-WARM FRONT OVER FAR SRN WI WITH ADDITIONAL STORMS EXPECTED
   TO MOVE INTO THE WATCH AREA FROM THE SOUTHWEST LATER THIS AFTERNOON
   INTO EVENING. GIVEN THE PRESENCE OF A MOIST/MODERATELY UNSTABLE AIR
   MASS WITH A VERTICALLY VEERING WIND PROFILE WITH 40-50 KT OF
   DEEP-LAYER SHEAR...THE SETUP WILL SUPPORT ORGANIZED STORM
   MODES...INCLUDING SUPERCELLS AND BOWING STRUCTURES WITH A RISK FOR
   LARGE HAIL AND DAMAGING WINDS. THE RISK FOR A TORNADO OR TWO WILL
   EXIST WITH ANY STORMS THAT CAN FAVORABLY INTERACT WITH THE WARM
   FRONT ACROSS FAR SRN WI.

   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: May 13, 2014
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