Subj : DAY48SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Tue Jul 04 2023 08:41:25

ACUS48 KWNS 040841
SWOD48
SPC AC 040839

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0339 AM CDT Tue Jul 04 2023

Valid 071200Z - 121200Z

....DISCUSSION...
Model differences become readily apparent early on in the mid-range
period, with gradually increasing troughing/cyclonic flow aloft
across the north-central and eastern U.S. as a deepening vortex over
north-central Canada drifts slowly southward through the period.

Meanwhile, with upper ridging to remain centered roughly over
northern Mexico, and the southwestern quarter of the U.S., a belt of
enhanced westerly/northwesterly flow will be maintained through the
period.

This enhanced flow aloft suggests that the persistent/active pattern
for severe weather east of the Rockies will continue.  However,
narrowing down favored areas for severe storm development on any
given day remains difficult, particularly given the increasing
differences in model solutions with time.  Given this lack of
predictability, no severe weather areas will be highlighted in the
medium-range period at this time.

...Goss.. 07/04/2023

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