Subj : DAY48SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sat Dec 31 2022 09:36:13

ACUS48 KWNS 310936
SWOD48
SPC AC 310934

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0334 AM CST Sat Dec 31 2022

Valid 031200Z - 081200Z

....DISCUSSION...
....Day 4/Tuesday - Southern U.S. Vicinity...
An upper trough will slowly shift east from the Plains to the MS
Valley on Tuesday. Showers and thunderstorms will likely be ongoing
across parts of the Lower MS Valley ahead of an eastward-advancing
cold front. Southerly low-level flow will spread mid/upper 60s
dewpoints across much of MS/AL vicinity, with lower dewpoints north
into the Mid-South/Ohio Valley. Modest instability will overlap with
strong vertical shear, and organized severe thunderstorms are
expected across portions of the southern U.S. Damaging gusts and a
few tornadoes appear possible given favorable vertical shear
supporting rotating storms.

....Day 5-8/Wednesday-Saturday...
Some severe potential could persist into Wednesday across parts of
eastern GA into the Carolinas as the upper trough and surface cold
front continue to shift east.  However, large-scale ascent will be
lifting northeast of the region, and instability is forecast to be
modest, decreasing rapidly with northward extent toward the
Mid-Atlantic. The surface cold front should move offshore the
Atlantic coast Wednesday night. Building surface high pressure in
the wake of the front and the dearth of boundary-layer moisture will
result in low severe thunderstorm potential Day
6-8/Thursday-Saturday.

...Leitman.. 12/31/2022

= = =
To unsubscribe from WX-STORM and you already have a login, go to
https://lists.illinois.edu and use the "Unsubscribe" link.  Otherwise email
Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM.

--- SBBSecho 3.14-Linux
 * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105)

.