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Severe Weather Watches Overview

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EXPIRED Severe Thunderstorm Watch #0410 for Northeast Colorado, Western and Northern Nebraska, Southern South Dakota, Southeast Wyoming
  • Scattered large hail and 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

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EXPIRED Severe Thunderstorm Watch #0410

Locations Affected

  • Northeast Colorado
  • Western and Northern Nebraska
  • Southern South Dakota
  • Southeast Wyoming
  • Severe Thunderstorm Watch Summary

    Severe thunderstorms are expected to continue to develop regionally mainly near a southwest/northeast-oriented front, with an unstable air mass and moderately strong wind profiles supporting supercells and hail/wind potential, and possibly even a brief tornado.

    Severe Weather Threats

  • Scattered large hail and 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
  • Severe Thunderstorm Watch Details

    SEL0
    
    URGENT - IMMEDIATE BROADCAST REQUESTED
    Severe Thunderstorm Watch Number 410
    NWS Storm Prediction Center Norman OK
    255 PM MDT Thu Jun 12 2025
    
    The NWS Storm Prediction Center has issued a
    
    * Severe Thunderstorm Watch for portions of 
      Northeast Colorado
      Western and Northern Nebraska
      Southern South Dakota
      Southeast Wyoming
    
    * Effective this Thursday afternoon and evening from 255 PM until
      1100 PM MDT.
    
    * Primary threats include...
      Scattered large hail and 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...Severe thunderstorms are expected to continue to develop
    regionally mainly near a southwest/northeast-oriented front, with an
    unstable air mass and moderately strong wind profiles supporting
    supercells and hail/wind potential, and possibly even a brief
    tornado.
    
    The severe thunderstorm watch area is approximately along and 75
    statute miles north and south of a line from 40 miles east southeast
    of Chamberlain SD to 75 miles south southwest of Torrington WY. 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.
    
    &&
    
    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 550. Mean storm motion vector
    26025.
    
    ...Guyer

    National Risk Overview

    Thursday, June 12
    TORNADO: 2%
    HAIL: 15%
    WIND: 15%
    Friday, June 13
    TORNADO: 2%
    HAIL: 15%
    WIND: 15%
    Saturday, June 14
    ANY SEVERE: 5%
    Sunday, June 15
    ANY SEVERE: predictability too low
    Monday, June 16
    ANY SEVERE: predictability too low
    Tuesday, June 17
    ANY SEVERE: predictability too low
    Wednesday, June 18
    ANY SEVERE: predictability too low
    Thursday, June 19
    ANY SEVERE: predictability too low

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