Subj : DAY48SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Mon Jan 20 2025 09:45:00

ACUS48 KWNS 200944
SWOD48
SPC AC 200942

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0342 AM CST Mon Jan 20 2025

Valid 231200Z - 281200Z

....DISCUSSION...
For Thursday/D4 into Friday/D5, a large positive-tilt upper trough
will move from central parts of the CONUS toward the East Coast,
exiting land late Friday. Although strong winds aloft will
overspread the southeastern states, northerly winds are forecast to
hold over land.

Behind that system, high pressure will maintain stable conditions
over the eastern CONUS into Saturday/D6, although more of a zonal
flow regime is forecast thereafter. As a result of this possible
transition to the pattern, minimal low-level moisture return with
low 60s F dewpoints may return to parts of the TX Coast as surface
pressure lowers briefly.

Beyond the D6 time frame, model spread is large, but the general
signal is for the ongoing large trough pattern over the central and
eastern CONUS to at least shift northeastward into eastern Canada
and the northeastern states, allowing for gradual warming across the
South.

...Jewell.. 01/20/2025

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