Subj : DAY2SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Fri Nov 17 2023 06:32:16

ACUS02 KWNS 170632
SWODY2
SPC AC 170630

Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1230 AM CST Fri Nov 17 2023

Valid 181200Z - 191200Z

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

....SUMMARY...
Severe thunderstorms are not expected on Saturday.

....Synopsis...
An upper-level trough initially over the Southwest is forecast to
move east-northeastward toward the Four Corners region and
eventually across parts of the central/southern High Plains by
Sunday morning. In its wake, a vigorous upstream trough is forecast
to dig southeastward from the northeast Pacific into parts of the
Northwest and northern California.

Convection associated with the lead upper trough may be capable of
producing sporadic lightning strikes across parts of AZ/NM as it
moves eastward during the day. Cyclogenesis is expected across the
south-central High Plains Saturday afternoon/evening as this system
moves eastward, and isolated elevated thunderstorm development will
be possible Saturday night from the TX/OK Panhandles into western
KS/OK. Meanwhile, convection may be accompanied by sporadic
lightning flashes early in the day across parts of the
central/southern CA. As the upstream trough digs into the Northwest
Saturday evening, another round of weak convection with some
isolated lightning potential will be possible from near the Pacific
Northwest coast into northern CA. Instability is expected to be too
weak to support an organized severe threat across any of the
potential thunderstorm areas.

...Dean.. 11/17/2023

$$

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