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Severe Thunderstorm Watch 291
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WW0291 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
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.
   SEL1

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 291
   NWS Storm Prediction Center Norman OK
   320 PM CDT Sun Jun 21 2020

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Western Iowa
     Southwest Minnesota
     Central and Eastern Nebraska
     Southeast South Dakota

   * Effective this Sunday afternoon and evening from 320 PM until
     1000 PM CDT.

   * Primary threats include...
     Scattered large hail likely with isolated very large hail events
       to 2.5 inches in diameter possible
     Scattered damaging wind gusts to 70 mph possible
     A tornado or two possible

   SUMMARY...Initially, isolated severe thunderstorms will continue to
   develop across far southeast South Dakota into northwest
   Iowa/southwest Minnesota, while additional severe thunderstorms are
   expected by late afternoon along a boundary extending across
   northern/central Nebraska. A combination of supercells/multicells
   are expected, with bouts of large hail/damaging winds as storms
   spread generally east-southeastward through early/mid-evening.

   The severe thunderstorm watch area is approximately along and 85
   statute miles north and south of a line from 45 miles southwest of
   Broken Bow NE to 10 miles east southeast of Storm Lake IA. For a
   complete depiction of the watch see the associated watch outline
   update (WOUS64 KWNS WOU1).

   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 290...

   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 500. Mean storm motion vector
   29030.

   ...Guyer
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