Subj : DAY48SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Fri Nov 11 2022 08:52:21

ACUS48 KWNS 110852
SWOD48
SPC AC 110850

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0250 AM CST Fri Nov 11 2022

Valid 141200Z - 191200Z

....DISCUSSION...
Medium-range models suggest that an initial mid-level high, building
near the British Columbia coast this weekend, may break down during
the early to middle portion of next week, before a larger/more
prominent high develops near somewhat higher latitudes of the North
American Pacific coast by late next week.  Both of these
developments are forecast to be followed by substantive downstream
mid-level trough amplification to the east of the Canadian/U.S.
Rockies, accompanied by reinforcing surges of seasonably cold/stable
surface-based air.

While the primary near-surface baroclinic zone may develop near the
Gulf and South Atlantic coasts, current model output suggests that
any significant frontal wave development will not occur until the
middle to latter portion of next week, offshore of the Mid
Atlantic/New England coast vicinity.  This should continue to limit
the potential for a substantive inland return flow of moisture, even
near coastal areas, likely maintaining generally low severe weather
probabilities through the period.

...Kerr.. 11/11/2022

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