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Severe Thunderstorm Watch 420
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WW0420 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
High Low
Severe Hail 2"+ Hail
Moderate 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.
   SEL0

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 420
   NWS Storm Prediction Center Norman OK
   345 PM CDT Fri Aug 7 2020

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     central Minnesota
     southeastern North Dakota
     northeastern South Dakota
     northwestern Wisconsin

   * Effective this Friday afternoon and Saturday morning from 345
     PM until 100 AM CDT.

   * Primary threats include...
     Scattered damaging wind gusts to 70 mph likely
     Scattered large hail and isolated very large hail events to 2
       inches in diameter possible
     A tornado or two possible

   SUMMARY...Severe thunderstorms, including a couple of supercells,
   are expected to form across parts of the Red River Valley into west
   central Minnesota late this afternoon, before consolidating into an
   organizing cluster by early evening.  This cluster of storms is
   expected to then track east-southeastward across the remainder of
   central Minnesota into northwestern Wisconsin by late evening. 
   Initial storms may pose a risk for severe hail, with some potential
   for an isolated tornado or two, before strong wind gusts become the
   primary severe hazard later this evening.

   The severe thunderstorm watch area is approximately along and 65
   statute miles north and south of a line from 45 miles southwest of
   Detroit Lakes MN to 70 miles east northeast of Saint Cloud MN. 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 inches. Extreme turbulence and surface wind gusts to 60 knots. A
   few cumulonimbi with maximum tops to 550. Mean storm motion vector
   28025.

   ...Kerr
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