Subj : DAY3SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sat Apr 22 2023 06:42:26

ACUS03 KWNS 220642
SWODY3
SPC AC 220641

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0141 AM CDT Sat Apr 22 2023

Valid 241200Z - 251200Z

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

....SUMMARY...
Severe thunderstorms are not forecast on Monday.

....Synopsis...

A weak mid/upper shortwave trough over the Four Corners vicinity
will eject into the Plains on Monday. Surface high pressure centered
over the Midwest and prior cold frontal passage across the southern
Plains into the Gulf will result in scant moisture across much of
the Plains ahead of the upper trough. Modestly increasing lee
surface troughing late in the period will result in strengthening
southerly low-level flow across TX. This will allow 60s F dewpoints
to spread across the TX coastal vicinity after 06z. While some
cooling aloft and steepening midlevel lapse rates associated with
the ejecting trough will result in widely scattered thunderstorms
from the Four Corners and central/southern Rockies vicinity into the
southern Plains vicinity, severe potential will remain limited by
meager instability, due to a lack of deeper boundary-layer moisture.

...Leitman.. 04/22/2023

$$

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