Subj : DAY48SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sun Sep 22 2024 08:36:36

ACUS48 KWNS 220836
SWOD48
SPC AC 220835

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0335 AM CDT Sun Sep 22 2024

Valid 251200Z - 301200Z

....DISCUSSION...
Large spread among guidance is apparent during the Day 4-8 period.
Most guidance develops an upper cyclone over the central or eastern
U.S. for much of the period, while an upper ridge persists over the
western states. However, the GFS suite of guidance is much more
progressive with the central/eastern upper trough/low compared to
the ECMWF, and eventually develops a broad upper ridge over much of
the CONUS late in the period. Given vastly different forecast
solutions, confidence in any severe potential developing during the
forecast period is low.

...Leitman.. 09/22/2024

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