Subj : DAY2SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Mon Apr 10 2023 17:11:21

ACUS02 KWNS 101711
SWODY2
SPC AC 101709

Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1209 PM CDT Mon Apr 10 2023

Valid 111200Z - 121200Z

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

....SUMMARY...
Isolated thunderstorms are possible over the Florida Peninsula and
Pacific Northwest as well as from the Texas Hill Country to the
western Gulf Coast on Tuesday. Severe thunderstorms are not
expected.

....Synopsis...

A closed upper low will persist near the northwest Gulf coast
vicinity on Tuesday. Surface high pressure centered over the TN
Valley will generally keep deeper Gulf moisture offshore, except
across the TX Coast into far southern LA where dewpoints in the 50s
to near 60 F will be in place. Weak buoyancy in the presence of this
modest boundary-layer moisture will support isolated thunderstorms
near the northwest Gulf coast vicinity westward to the Edwards
Plateau/TX Hill Country vicinity. Limited instability and weak
vertical shear will preclude severe potential. Additional isolated
lightning flashes are possible across south FL where 60s F dewpoints
will remain in place. Modest diurnal destabilization will support
isolated thunderstorms during the afternoon.

Across the Pacific Northwest, a strong upper shortwave trough will
move onshore and shift eastward to the northern Rockies. Cooling
aloft and steep midlevel lapse rates will support isolated
thunderstorms across parts of northwest OR, much of WA and into
northern ID/far northwest MT.

...Leitman.. 04/10/2023

$$

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