649
ACUS48 KWNS 100825
SWOD48
SPC AC 100824

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0324 AM CDT Sun Aug 10 2025

Valid 131200Z - 181200Z

...DISCUSSION...
From Wednesday/D4 into Thursday/D5, a shortwave trough is forecast
to move from the Pacific Northwest across MT and over the far
northern Plains, with an upper speed max developing into southern SK
and MB. In advance of this trough, a leading trough affecting the
Great Lakes region will also lift northeastward, with height rises
and a warming pattern across parts of the Plains and upper Midwest.
The combination of increasing dewpoints and the upper trough
glancing the region may result in some manner of severe risk late
Thursday/D5, and most likely from parts of ND into northern MN, and
in evening/overnight MCS form. Future model trends will be monitored
for a possible risk area.

From Friday/D6 onward, predictability decreases with the motion of
the aforementioned upper wave. However, large instability is likely
to again build across the Mid MO/Upper MS Valleys, and at least
sporadic severe storms cannot be ruled out from the northern High
Plains eastward toward the Upper Great Lakes.

..Jewell.. 08/10/2025