FXUS64 KJAN 150855
AFDJAN

Area Forecast Discussion
National Weather Service Jackson MS
355 AM CDT Wed Apr 15 2026

...New DISCUSSION...

.KEY MESSAGES...

  - Areas of dense fog are possible this morning, especially in
    portions of southeast Mississippi.

  - There is a chance for showers and thunderstorms in the US
    Highway 82 corridor on Thursday.

  - Chances for more widespread shower and thunderstorm activity
    increase Saturday afternoon into Saturday night.

&&

.DISCUSSION...
Issued at 346 AM CDT Wed Apr 15 2026

Through This Morning:

As we saw yesterday morning, moisture return into the region, in
conjunction with radiational cooling overnight is creating a fog
along the Mississippi and Alabama Gulf Coasts, spreading north
into portions of southeast Mississippi. Issued a Dense Fog
Advisory where confidence in areas of fog is greatest, but some
patchy fog could develop farther north and west than the Pine Belt
by sunrise as well.

Today through Tuesday:

Fog development is expected again late tonight into Thursday
morning, spreading from the Gulf Coast into at least central
Mississippi with advection/radiation effects. A dominant surface
high and upper-level ridge over the Southeast US will blunt the
chance for an approaching cold front to make its way too far south
into our area on Thursday. Timing looks a little faster with
the shortwave, and may miss best daytime heating. The 20-30%
chances for showers and thunderstorms were trimmed back into the
US Highway 82 corridor. A re-strengthening of the ridge will
bring dry conditions back to the forecast area, and high
temperatures on Friday will even flirt with 90 degrees for most
locations in our forecast area.

An amplifying upper-level pattern will bring a trough and cooler
surface air into the High Plains by Friday night into Saturday. The
resulting low pressure system will still be far to our north around
the Great Lakes, but a stronger cold front should push through our
area Saturday night into Sunday. Expect increased moisture ahead of
the frontal passage, with the best chance (60%) of the next 7 days
for showers and thunderstorms to impact the area. The surface high
behind this system will be fairly strong for mid-April. 1025+ mb is
about 1 to 2 standard deviations above normal across the Mid-South.
Cooler weather is expected (and dry) in the wake of this frontal
passage. Widespread low temperatures in the 40s are achievable
Sunday night into Monday. /NF/

&&

.AVIATION...
(06Z TAFS)
Issued at 129 AM CDT Wed Apr 15 2026

VFR conditions will prevail through most of tonight. Another round
of low stratus/fog potential will advect in from the south toward
daybreak, and primarily impact southern/eastern sites with
LIFR/IFR categories during the early to mid morning hours
Wednesday. Expect a quick improvement to VFR category at all
sites by late morning continuing through the remainder of the day
and into the evening. Southerly surface wind will diminish this
evening, then pick up during the day and become gusty. /EC/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       84  63  86  64 /   0   0  10   0
Meridian      85  60  86  61 /   0   0  10   0
Vicksburg     86  63  87  65 /   0   0  10   0
Hattiesburg   85  62  87  62 /   0   0  10   0
Natchez       85  64  87  64 /   0   0  10   0
Greenville    86  67  86  66 /   0  10  30  10
Greenwood     86  66  85  66 /   0   0  20  10

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...Dense Fog Advisory until 9 AM CDT this morning for MSZ063>066-
     072>074.

LA...None.
AR...None.
&&

$$

NF/KP