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Tornado Watch 251
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WW0251 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Moderate
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
High High

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
   Tornado Watch Number 251
   NWS Storm Prediction Center Norman OK
   225 PM MDT Thu Jun 10 2021

   The NWS Storm Prediction Center has issued a

   * Tornado Watch for portions of 
     Northeast Montana
     Western North Dakota

   * Effective this Thursday afternoon and evening from 225 PM until
     900 PM MDT.

   * Primary threats include...
     A few tornadoes and a couple intense tornadoes possible
     Widespread large hail and scattered very large hail events to 4
       inches in diameter likely
     Scattered damaging wind gusts to 70 mph likely

   SUMMARY...Intense thunderstorms including supercells will likely
   rapid develop through mid/late afternoon from east-central/northeast
   Montana into western South Dakota. Of greatest concern as far as
   intense supercells and a tornado risk will be those storms occurring
   near a west-east warm front across the region, where low-level
   moisture/shear will be maximized. A strong tornado is possible.

   The tornado watch area is approximately along and 80 statute miles
   north and south of a line from 10 miles north northwest of Wolf
   Point MT to 70 miles east southeast of Williston ND. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU1).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   REMEMBER...A Tornado Watch means conditions are favorable for
   tornadoes and 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.

   &&

   AVIATION...Tornadoes and a few severe thunderstorms with hail
   surface and aloft to 4 inches. Extreme turbulence and surface wind
   gusts to 60 knots. A few cumulonimbi with maximum tops to 550. Mean
   storm motion vector 22020.

   ...Guyer
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Page last modified: June 11, 2021
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