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Severe Thunderstorm Watch 276
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WW0276 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Low
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.
   SEL6

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 276
   NWS Storm Prediction Center Norman OK
   350 PM CDT Thu Jun 17 2021

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     North-central and northeast Iowa
     Southeast Minnesota
     Southwest to south-central Wisconsin

   * Effective this Thursday afternoon and evening from 350 PM until
     1000 PM CDT.

   * Primary threats include...
     Scattered damaging winds and isolated significant gusts to 80
       mph possible
     Scattered large hail and isolated very large hail events to 2
       inches in diameter possible
     A tornado or two possible

   SUMMARY...A couple supercells may emanate out of a swath of
   pre-frontal high-based thunderstorms, or they may consolidate into
   an east-southeast moving cluster through mid-evening.

   The severe thunderstorm watch area is approximately along and 75
   statute miles east and west of a line from 5 miles north northwest
   of Camp Douglas WI to 45 miles east southeast of Fort Dodge IA. For
   a complete depiction of the watch see the associated watch outline
   update (WOUS64 KWNS WOU6).

   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.

   &&

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   2 inches. Extreme turbulence and surface wind gusts to 70 knots. A
   few cumulonimbi with maximum tops to 550. Mean storm motion vector
   29035.

   ...Grams
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Page last modified: June 18, 2021
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