ZCZC SPCSWOD48 ALL
   ACUS48 KWNS 240842
   SPC AC 240842

   Day 4-8 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0342 AM CDT Wed Jun 24 2026

   Valid 271200Z - 021200Z

   ...DISCUSSION...
   ...D4/Saturday - Northern Plains...
   A strong trough will advance into the Northwest CONUS on Saturday
   with a strong mid-level jet extending from the Great Basin to the
   northern Plains. A lee cyclone will develop across eastern Wyoming
   into western South Dakota. Southerly flow will strengthen and advect
   low to mid 60s dewpoints northward. This will lead to strong
   instability by the late afternoon across the western Dakotas. There
   is still some uncertainty with the evolution of the upper-level
   trough which will have some impact in the timing and location of the
   severe weather threat on Saturday. At this time, have confined the
   15% area to where the greatest severe weather threat appears likely
   Saturday afternoon/evening, but this area may need to be refined in
   future outlooks.

   ...Day 5 and Beyond...
   Severe weather will be possible across portions of the Northern
   Plains into the Upper Midwest Sunday and into next week. However,
   predictability remains too low to highlight areas in this timeframe.
   The presence of strong to very strong instability across a large
   region with multiple shortwave troughs emerging from the primary
   trough centered over the West will surely support severe weather
   potential most days. However, probabilities for specific areas
   cannot be added until the upper-level pattern becomes more clear.

   ..Bentley.. 06/24/2026

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