Sioux Falls Severe Thunderstorm Watch Tuesday

The National Weather Service has issued a Severe Thunderstorm Watch for parts of South Dakota and Minnesota, effective until 10:00 PM Monday morning. The Watch area includes Sioux Falls

A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms to form.

"Thunderstorms across south-central SD are organizing into a convective line that will likely continue southeastward into the very unstable airmass downstream across far southeast SD and far northeast NE. Strong gusts are possible with this line as it moves into this region this afternoon and evening." - NWS

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URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 557
   NWS Storm Prediction Center Norman OK
   455 PM CDT Tue Jul 29 2025

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Far Northeast Nebraska
     Far Southeast South Dakota

   * Effective this Tuesday afternoon and evening from 455 PM until
     1000 PM CDT.

   * Primary threats include...
     Scattered damaging wind gusts to 70 mph possible
     Isolated large hail events to 1.5 inches in diameter possible

   SUMMARY...Thunderstorms across south-central SD are organizing into
   a convective line that will likely continue southeastward into the
   very unstable airmass downstream across far southeast SD and far
   northeast NE. Strong gusts are possible with this line as it moves
   into this region this afternoon and evening.

   The severe thunderstorm watch area is approximately along and 60
   statute miles north and south of a line from 30 miles south
   southwest of Chamberlain SD to 15 miles east of Yankton SD. For a
   complete depiction of the watch see the associated watch outline
   update (WOUS64 KWNS WOU7).

   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.