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Severe Thunderstorm Watch 418
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WW0418 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
Moderate Low

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 418
   NWS Storm Prediction Center Norman OK
   230 PM MDT Fri Jul 1 2022

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Northwest Nebraska
     Western South Dakota
     Eastern Wyoming

   * Effective this Friday afternoon and evening from 230 PM until
     1000 PM MDT.

   * Primary threats include...
     Scattered damaging winds and isolated significant gusts to 75
       mph possible
     Isolated large hail events to 1.5 inches in diameter possible

   SUMMARY...At least a couple supercells should develop from eastern
   Wyoming and the Black Hills area before growing upscale into an
   east-southeast moving cluster this evening.

   The severe thunderstorm watch area is approximately along and 90
   statute miles east and west of a line from 65 miles east northeast
   of Gillette WY to 5 miles west southwest of Alliance 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 417...

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
   few cumulonimbi with maximum tops to 450. Mean storm motion vector
   29030.

   ...Grams
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Page last modified: July 02, 2022
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