Subj : DAY3SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Thu Sep 25 2025 07:29:56

ACUS03 KWNS 250729
SWODY3
SPC AC 250728

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0228 AM CDT Thu Sep 25 2025

Valid 271200Z - 281200Z

....NO SEVERE THUNDERSTORM AREAS FORECAST...

....SUMMARY...
Scattered thunderstorms are expected across the Southwest into the
Great Basin and Central Rockies and from the Southeast to the
Mid-Atlantic. No severe storms are expected.

....Synopsis...
A cut-off low will be present across the Southwest and near the
southern Appalachians at 12Z Saturday. Both will drift slowly east
through the period. The low across the west may start to rejoin the
westerlies by the end of the period as a larger trough approaches
the West Coast. The surface pattern will remain mostly nebulous with
high pressure across much of the CONUS.

....Southwest...
Weak instability will develop across the Southwest and into the
Great Basin and central Rockies as monsoon moisture drifts northward
on Saturday. Relatively weak instability and modest shear should
limit the overall threat. A few stronger storms may be possible
across southeast Arizona, but the lack of stronger shear precludes
any severe weather probabilities at this time.

....Southeast to the Carolinas...
A moist, weak lapse rate environment will persist across the
Southeast into the Carolinas on Saturday. Around 30 knots of
mid-level flow will overspread this airmass ahead of a weak
mid-level low. This may provide enough shear for a few strong
storms, but weak lapse rates and instability should keep the overall
threat limited.

...Bentley.. 09/25/2025

$$

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