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Severe Thunderstorm Watch 268
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WW0268 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
High 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.
   SEL8

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 268
   NWS Storm Prediction Center Norman OK
   330 PM CDT Sun Jun 7 2020

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     North central Nebraska
     Central South Dakota

   * Effective this Sunday afternoon and evening from 330 PM until
     1000 PM CDT.

   * Primary threats include...
     Scattered damaging winds and isolated significant gusts to 80
       mph likely
     Scattered large hail and isolated very large hail events to 3
       inches in diameter likely
     A tornado or two possible

   SUMMARY...Thunderstorm development is expected in the next 1-2 hours
   from northern Nebraska into central South Dakota along a surface
   trough.  The storm environment will initially favor supercells
   capable of producing very large hail.  Upscale growth into clusters
   is likely this evening given storm interactions and strong downdraft
   potential, with significant damaging winds possible.  An isolated
   tornado cannot be ruled out with the initial storms, but this threat
   should be substantially lower than the hail/wind threat.

   The severe thunderstorm watch area is approximately along and 60
   statute miles east and west of a line from 35 miles north northwest
   of Aberdeen SD to 75 miles southwest of Valentine NE. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU8).

   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 266...WW 267...

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   3 inches. Extreme turbulence and surface wind gusts to 70 knots. A
   few cumulonimbi with maximum tops to 600. Mean storm motion vector
   23035.

   ...Thompson
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