Subj : DAY48SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Wed May 24 2023 08:55:25

ACUS48 KWNS 240855
SWOD48
SPC AC 240853

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0353 AM CDT Wed May 24 2023

Valid 271200Z - 011200Z

....DISCUSSION...
Medium-range guidance is in good agreement that a Rex Block will be
in place over the eastern CONUS D4/Saturday morning. This blocking
pattern will likely remain in place through the early next week when
the upper low moves off the Southeast coast. During this same time
frame, an upper low is forecast to drift slowly
southeastward/eastward across the Great Basin.

Low-level moisture is expected to remain in place over the Plains
and the relatively stagnant upper pattern should allow for a
somewhat repetitive scenario of afternoon thunderstorm development
across the High Plains. This will result in a broad area of at
least low severe potential across the High Plains through the
weekend and into early next week. Smaller areas of greater severe
potential may become apparent/more predicable as the forecast range
decreases.

...Mosier.. 05/24/2023

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