665
FXUS64 KJAN 301727 AAC
AFDJAN

Area Forecast Discussion...UPDATED
National Weather Service Jackson MS
1227 PM CDT Tue Apr 30 2024

...New AVIATION...

.DISCUSSION...
Issued at 359 AM CDT Tue Apr 30 2024

Today and tonight...

Clouds will gradually clear this afternoon. High temperatures
should reach the mid 80s. Quiet conditions continue tonight under
the influence of upper ridging and surface high pressure. This
should allow temperatures to drop to the low 60s across the area
tonight./SAS/

Wednesday through Monday: Warmer than normal through the period with
disturbed weather as the southern branch of the jet stream meanders
over the region combining with a few stalled boundaries.

Come Wednesday morning shortwave ridging aloft will be over our
region while a surface high will be centered over the Appalachians
and ridging back across our CWA. Wl start out rather dry with
PWATs less than an inch but the ridging aloft and the surface high
will shift east through the day resulting in a decent return
flow. PWATs will increase to nearly an inch and a half across the
southwest and daytime heating will lead to a chance of showers and
thunderstorms during the afternoon. This activity should see a
distinct diurnal trend and dissipate by early evening. Thursday a
northern stream disturbance will help develop a nearly stacked low
over the northern Plains. This system will drop a cold front our
way. In addition a southern stream disturbance moving out of the
southern Plains may develop an MCS by Thursday afternoon over
east Texas that may edge into our western zones before
dissipating. Rain chances will increase over our west and
northwest zones Thursday and Thursday night. The cold front is
expected to drop into our CWA Friday and lead to greater rain
chances across our whole CWA but the greatest rain chances will be
across the northwest half of the CWA. The stalled cold front will
still be over our CWA Saturday when another northern stream
disturbance tries to drop a boundary into our CWA. This boundary
looks to stall across the northern portions of our CWA. Friday
night into Monday morning rain chances will likely be confined to
the north of Interstate 20 while our southern zones remain dry.
Highest afternoon temperatures are expected across our southern
zones that may top out near 90F each afternoon Saturday through
Monday. /22/

&&

.AVIATION...
(18Z TAFS)
Issued at 1224 PM CDT Tue Apr 30 2024

Earlier fog and low stratus deck has mixed and lifted with
Scattered to broken cumulus deck lifting into the VFR range
currently or likely by 19Z. There is a chance for some re-
development of BR or FG around 12Z Wednesday, but confidence in
MVFR or lower impacts to any TAF site was too low to mention at
this time. /NF/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       83  62  88  64 /   0   0  20  10
Meridian      84  60  88  62 /  10   0  10   0
Vicksburg     84  62  88  65 /   0   0  20  10
Hattiesburg   86  63  89  64 /   0   0  10   0
Natchez       85  63  87  65 /   0   0  30   0
Greenville    83  64  87  66 /   0   0  10  10
Greenwood     83  63  88  65 /   0   0  10   0

&&

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

$$

SAS20/22/NF