Subj : DAY48SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Fri Aug 08 2025 08:23:33

ACUS48 KWNS 080823
SWOD48
SPC AC 080822

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0322 AM CDT Fri Aug 08 2025

Valid 111200Z - 161200Z

....DISCUSSION...
A weak upper trough over the north-central U.S. on Monday/D4 will
move into the upper Great Lakes on Tuesday/D5, then eject into
eastern Canada by Wednesday/D6. From D6 through Friday/D8, another
wave is forecast to develop over the Pacific Northwest, and move
across the northern Rockies.

At the surface, a moist air mass will remain over much of the
central and eastern states, with minimal surface focus. However,
daily areas of thunderstorms, some with gusty winds, are likely to
occur from the upper Great Lakes to the southern Plains for
Monday/D4 into Tuesday/D5, and then into the OH/TN Valleys and
Northeast thereafter.

Perhaps by D7/D8, the northern Rockies trough will interact with
stronger instability over the northern Plains with a wind or hail
threat, but predictability is low this far out for such a minimal
system.

...Jewell.. 08/08/2025

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