460
ACUS48 KWNS 130846
SWOD48
SPC AC 130844

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0344 AM CDT Wed Aug 13 2025

Valid 161200Z - 211200Z

...DISCUSSION...
During the Saturday/D4 to Sunday/D5 time frame, a weak midlevel wave
may affect the far northern Plains to upper Great Lakes, rounding
the building upper ridge. Meanwhile, a boundary will exist roughly
from ND/MN into MI, with latitudinal uncertainty. A moist air mass
will remain across this zone, with periodic storm complexes
possible. Predictability is low but at least some wind risk may
develop across portions of this zone.

For the rest of the period through at least Wednesday/D8, a large
upper ridge is forecast to build over much of the West/Rockies, with
minimal severe risk.

..Jewell.. 08/13/2025