482
FXUS64 KJAN 191128 AAA
AFDJAN

Area Forecast Discussion...UPDATED
National Weather Service Jackson MS
528 AM CST Wed Nov 19 2025

...New AVIATION...

.KEY MESSAGES...

  - Dense fog impacting areas mainly south of I-20 this morning,
    and perhaps again Thursday morning.

  - Chances will increase for showers and a few storms as we
    approach the weekend.

  - A more significant storm system could impact our area early
    next week.

&&

.DISCUSSION...
Issued at 300 AM CST Wed Nov 19 2025

Today through Saturday:

Advection fog is moving in to southern portions of the forecast
area early this morning, and there are a few locations observing
dense fog in the area roughly along and south of the Hwy 84
corridor. Dense fog should not develop much farther north, and it
is expected to dissipate as we go into mid morning. Given the
persistent, humid weather pattern, additional fog should form in
about the same area Thursday morning, with focus mainly on
southern and eastern MS. /EC/

Strong riding over the central Gulf will be suppressed somewhat
as a filling shortwave trough ejects across the Southern US
Friday. In advance of the wave, a few rain showers can`t be ruled
out around the periphery of the ridge. Otherwise expect the warm
and rain-free conditions to continue into Thursday night. A low
pressure system associated with the approaching disturbance will
push a cold front through the region late Thursday night through
Friday. Modest instability and wind shear may exist in the warm
sector out ahead of the cold front, and some stronger
thunderstorms cannot be entirely ruled out in the air mass.
Forcing with the front will be decreasing, and resulting low-level
flow will be more boundary-parallel. Therefore there is no
widespread threat for severe thunderstorms expected at this time.
Showers or a few storms may linger in our area on Saturday as the
front stalls out.

Sunday through Tuesday:

Flow aloft will amplify for early next week as another low digs over
the Desert Southwest and slowly lifts eastward. Moisture recovery
will begin along the TX Gulf Coast during this early week time
frame, and by Tuesday, the low could be sliding across the South
with additional chances for showers and thunderstorms in the region.
It`s too far out to have certainty with this type of system in this
kind of weather pattern, but that will be our next target to monitor
for any impacts in our region as the Thanksgiving holiday time
frame approaches. /NF/

&&

.AVIATION...
(12Z TAFS)
Issued at 526 AM CST Wed Nov 19 2025

Low stratus and patchy fog, some dense and periodically reducing
visibilities to 1/4 mile, will continue to plague area TAF sites
mainly south of the Interstate 20 corridor through mid-morning.
This is where flight categories will range between MVFR/LIFR
status. The best potential for any dense fog currently residing at
sites along the vicinity of the Highway 84 corridor across South
Mississippi, i.e. KHEZ, KPIB, & KHBG. At remaining TAF sites, i.e.
KGLH, KGWO, & KGTR, due to mainly patchy low stratus, a mix of
VFR/MVFR categories will exist through mid-morning. By 17Z, VFR
flight categories will prevail at area TAF sites. By late morning,
and continuing through this afternoon, winds will be from the
southwest between 5-8 knots. /19/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       82  60  81  62 /   0   0   0  30
Meridian      82  58  82  59 /   0   0   0  20
Vicksburg     82  62  81  63 /   0   0   0  40
Hattiesburg   84  59  82  62 /   0   0   0  20
Natchez       83  60  81  63 /   0   0   0  40
Greenville    81  64  80  63 /   0  10  20  50
Greenwood     81  63  81  63 /   0  10  10  40

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...Dense Fog Advisory until 9 AM CST this morning for MSZ057>066-
     072>074.

LA...Dense Fog Advisory until 9 AM CST this morning for LAZ024-026.

AR...None.
&&

$$

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