Subj : DAY3SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Tue Dec 31 2024 07:50:53

ACUS03 KWNS 310750
SWODY3
SPC AC 310749

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0149 AM CST Tue Dec 31 2024

Valid 021200Z - 031200Z

....NO THUNDERSTORM AREAS FORECAST...

....SUMMARY...
Thunderstorms are not expected Thursday.

....Synopsis...
A shortwave trough is forecast to rotate through the central/eastern
CONUS upper troughing on Thursday, progressing cyclonically from the
central Plains through the Mid MS Valley into the Southeast States
and southern Appalachians. Another, more northerly shortwave trough
is expected to move across the Upper Midwest and Upper Great Lakes.
Progression of these waves will help maintain upper troughing across
the eastern CONUS into early Friday. Farther west, upper ridging
will gradually shift across the western CONUS, ahead of a strong
shortwave trough expected to approach the Pacific Northwest coast
early Friday morning.

At the surface, ridging associated with a dry continental airmass is
expected to gradually shift eastward from the TN Valley/Southeast
towards the Mid-Atlantic. Another surge of cold air is anticipated
across the Plains, helping to reinforce the dry conditions from a
preceding cold front. A weak low may develop along the TX coast,
along a weak inverted trough, helping to preclude any inland
moisture return. Dry and stable conditions across the CONUS will
prevent thunderstorm development.

...Mosier.. 12/31/2024

$$

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