343
ACUS01 KWNS 040532
SWODY1
SPC AC 040531

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1131 PM CST Mon Nov 03 2025

Valid 041200Z - 051200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
A few lightning flashes may accompany low-topped storms along the
California and Oregon coastlines early Wednesday morning. Organized
severe storms are not expected.

...Synopsis...
A mid-level trough will progress eastward over the Great Lakes as a
second upper trough impinges on the West Coast today. A surface low
will become established over the OH Valley while high pressure
remains in place across the Southeast and much of the Interior West.
A cool and/or stable low-level airmass will overspread most of the
U.S., limiting thunderstorm development. The one exception may be
portions of the northern CA/OR coasts. Toward the end of the period
(06-12Z Wednesday morning), cooler temperatures aloft will gradually
overspread the shoreline with the approach of the aforementioned
upper trough. Buoyancy (however scant), may be sufficient to support
a few lightning flashes with the stronger, low-topped convective
cells that manage to develop.

..Squitieri/Wendt.. 11/04/2025

$$