Subj : DAY3SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sun Apr 30 2023 07:00:06

ACUS03 KWNS 300700
SWODY3
SPC AC 300659

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0159 AM CDT Sun Apr 30 2023

Valid 021200Z - 031200Z

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

....SUMMARY...
The severe-thunderstorm threat is expected to be low on Tuesday.

....Synopsis...
Little change to the large-scale pattern in expected on Tuesday. A
deep longwave upper-level trough over the eastern CONUS and embedded
deep-layer cyclone near the upper Great Lakes are forecast to shift
only gradually eastward through the day. Meanwhile, a
mid/upper-level cyclone is forecast to continue drifting southward
near the Pacific Coast. Dry and stable conditions will continue to
limit thunderstorm chances for most areas across the central/eastern
CONUS, though some thunderstorm potential will begin returning to
parts of the southern High Plains.

....Southern Rockies/High Plains...
Low-level southeasterly flow will result in modest moistening and
destabilization across the southern Rockies and adjacent High Plains
on Tuesday, supporting the potential for widely scattered
thunderstorms. While veering wind profiles are forecast across the
region, weak wind speeds through the troposphere will limit bulk
shear and SRH, hampering the potential for organized storms. The
strongest storms may be capable of small hail and locally strong
gusts, but the severe potential appears limited at this time.

....Interior Northwest...
Widely scattered thunderstorms will again be possible across parts
of the interior Northwest Tuesday afternoon and evening, within a
similar regime to D2/Monday. Deep-layer shear will remain favorable
for some modestly organized storms capable of small hail and gusty
winds, but weak buoyancy is expected to limit the organized
severe-thunderstorm threat.

...Dean.. 04/30/2023

$$

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