Subj : DAY48SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Thu Jun 29 2023 09:03:02

ACUS48 KWNS 290902
SWOD48
SPC AC 290901

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0401 AM CDT Thu Jun 29 2023

Valid 021200Z - 071200Z

....DISCUSSION...
An upper-level trough will move northeast across the central and
northeast U.S. Sunday through Tuesday, while an upstream upper
trough develops over the northern Rockies/Plains during the middle
portion of the week. The greatest potential for organized severe
storms Sunday and Monday may extend from western portions of the
Ohio and Tennessee Valley region east into the mid-Atlantic, where
moderate/strong instability and somewhat stronger mid-level flow
will coincide. It is likely that antecedent thunderstorms will
influence mesoscale details and, ultimately, locations where a
greater coverage of severe storms will exist.  Thus, predictability
remains too low for a 15% coverage area with this outlook.

Tuesday through Thursday, at least isolated thunderstorms will be
possible over many areas, however stronger mid-level flow will
largely be confined to the central/northern plains. Predictability
remains too low to introduce a risk area in this time frame.

...Bunting.. 06/29/2023

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