Subj : DAY1SVR: Day 1 Convective Outlook
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Thu Oct 26 2023 05:52:16

ACUS01 KWNS 260552
SWODY1
SPC AC 260550

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1250 AM CDT Thu Oct 26 2023

Valid 261200Z - 271200Z

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

....SUMMARY...
Severe thunderstorms are not forecast through tonight.

....Synopsis...
A deep mid/upper-level longwave trough will reside across
most of the central/western CONUS during the period.  A mid-level
disturbance/speed max initially over eastern KS/OK will quickly move
northeast during the day and weaken, reaching the southern Great
Lakes by evening.  A stronger upstream shortwave trough will move
from the central/northern Rockies into the northern Great Plains.  A
cold front will move through parts of the central Great Plains
during the day, and across parts of the Upper Midwest, mid/upper MS
Valley, and into OK tonight.

Model guidance indicates a convective band will likely be ongoing
this morning across portions of central TX northeastward towards the
Arklatex within a moist low-level environment.  Another area for
thunderstorm development will seemingly concentrate over the mid MS
Valley in association with a strong southwesterly LLJ.  Modestly
favorable deep-layer flow/shear could support some loosely organized
convective bands across those areas, but generally weak midlevel
lapse rates and buoyancy are currently expected to limit
severe-thunderstorm potential.

...Smith/Wendt.. 10/26/2023

$$

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