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Severe Thunderstorm Watch 340
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WW0340 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.
   SEL0

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 340
   NWS Storm Prediction Center Norman OK
   355 PM CDT Fri Jun 16 2017

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Northern Iowa
     Southern Minnesota
     Extreme Northeast Nebraska
     Extreme Southeast South Dakota
     Southwest Wisconsin

   * Effective this Friday afternoon and evening from 355 PM until
     1000 PM CDT.

   * Primary threats include...
     Scattered large hail and isolated very large hail events to 2
       inches in diameter possible
     Scattered damaging wind gusts to 70 mph possible
     A tornado or two possible

   SUMMARY...Thunderstorms will continue to develop over the watch area
   this afternoon and early evening.  The strongest cells will be
   capable of large hail and damaging winds.

   The severe thunderstorm watch area is approximately along and 50
   statute miles north and south of a line from 35 miles north
   northwest of Sioux City IA to 35 miles northeast of Lonerock WI. For
   a complete depiction of the watch see the associated watch outline
   update (WOUS64 KWNS WOU0).

   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 338...WW 339...

   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
   27030.

   ...Hart
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Page last modified: June 17, 2017
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