Subj : DAY3SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Fri Nov 03 2023 06:56:37

ACUS03 KWNS 030656
SWODY3
SPC AC 030655

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0155 AM CDT Fri Nov 03 2023

Valid 051200Z - 061200Z

....NO SEVERE THUNDERSTORM AREAS FORECAST...

....SUMMARY...
Isolated thunderstorms are possible across south Florida Sunday
morning through the early afternoon. Isolated thunderstorms are also
possible along the Pacific Northwest coast late Sunday night through
early Monday morning.

....Synopsis and Discussion...
A shortwave trough is forecast to extend from the Upper OH Valley
into AL early Sunday, before then continuing eastward through the
Mid-Atlantic and remainder of the Southeast throughout the day.
Moderate low-level moisture, characterized by dewpoints in the low
to mid 60s, will likely be in place over southern FL early in the
period. This low-level moisture will likely be pushed offshore by a
surge of dry air associated with the passing shortwave. Even so,
modest buoyancy could foster a few isolated thunderstorms along this
boundary through the early afternoon.

Predominantly zonal flow is anticipated across the CONUS in the wake
of the eastern CONUS shortwave trough. Several low-amplitude
shortwave troughs will be embedded within this enhanced westerly
flow, the strongest of which is expected to approach the Pacific
Northwest coast late Sunday night/early Monday morning. Mid-level
temperatures should be cold enough to support modest buoyancy, and
the potential for a few flashes will exist from ID into northern WY
and southeast MT. However, given the limited moisture, overall
coverage is currently expected to remain below 10%.

Relatively higher thunderstorm chances are possible along the
Pacific Northwest coast as the aforementioned shortwave approaches.
Isolated convective cores may become sufficiently deep for lightning
flashes.

...Mosier.. 11/03/2023

$$

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