467
FXUS64 KJAN 181903
AFDJAN

Area Forecast Discussion
National Weather Service Jackson MS
203 PM CDT Wed Sep 18 2024

...New DISCUSSION...

.DISCUSSION...
Issued at 203 PM CDT Wed Sep 18 2024

Tonight through Tomorrow Night

The main challenge will onset, coverage, and thickness of low-
lying stratus and fog development throughout the CWA. That being
said we`ve had some dry air mix into the area mostly off to the
northeastern most quadrant, which should inhibit any low-lying
stratus development in that area. The rest of the CWA will see
areas of patchy fog with denser development in low elevation sites
along shallow river valleys. In any event, hydrometeors are
expected to burn off by mid morning across all sites.

Other weather parameters look to be typical, following with
diurnal trends. Highest wind speeds look to be under 10kts and
generally northerly, although the direction may be variant with
light winds and a ridge that extends from the surface through to
300mb that is slowly building throughout the period. Precipitation
chances remain near 0% with the isentropic lift mechanism eroding
away early this morning, being relegated along the MS/AL/FL gulf
coast. Lows in the mid 60s and highs are expected to be the high
80s.


Friday through Tuesday...

Ridging will continue to entrench itself across the Lower
Mississippi River Valley and as the cut-off low over the Carolinas
(the remnants from an unnamed tropical system that moved through
earlier this week) begins to fill and push eastward; we will see a
shifting of the ridge axis to a more positive tilt. This will
result in tame conditions across the region for the remainder of
the period, with rain chances rebounding into the 20% range
Wednesday afternoon as the ridge completes its traversal across
our area and a trough beginning to meander over from the west.
Relative humidity values are not expected to change much so expect
a more narrow diurnal swing in our temperatures: Highs in the mid
to high 80s and lows in the low to mid 60s./OAJ/

&&

.AVIATION...
(18Z TAFS)
Issued at 1230 PM CDT Wed Sep 18 2024

VFR conditions will predominate through the TAF period. Brief
localized fog and low stratus cannot be ruled out early Thursday
morning, but confidence at any specific site is too low to include
in TAF at this time. /DL/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       68  90  67  90 /   0   0   0   0
Meridian      65  91  67  92 /   0   0   0   0
Vicksburg     69  91  66  91 /   0   0   0   0
Hattiesburg   71  92  69  94 /   0   0   0   0
Natchez       70  90  67  91 /   0   0   0   0
Greenville    64  88  65  90 /   0   0   0   0
Greenwood     64  90  67  92 /   0   0   0   0

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...None.
LA...None.
AR...None.
&&

$$

OAJ/DL