817
FXUS64 KJAN 011127
AFDJAN

Area Forecast Discussion
National Weather Service Jackson MS
627 AM CDT Mon Sep 1 2025

...New AVIATION...

.DISCUSSION...
Issued at 310 AM CDT Mon Sep 1 2025

Overall, weather conditions will be typical of those expected in
early September this week with very warm daytime temperatures and
mild overnight lows along chances for light rainfall. The
advertised cool-down for late in the forecast period has been
delayed even more and now looks more likely to hold off until next
weekend.

The flow aloft should amplify quickly as an upper-level ridge
over the Rockies elongates and deep troughing digs over the
eastern half of the CONUS. Upper-level heights in the core of this
trough will be about 2-4 standard deviations below normal for
this time of year - keeping temps from rebounding to strongly.
Earlier guidance for below normal temperatures has backed off with
cooler surface air waiting largely until next weekend.

The broad trough axis over the eastern half of the country still
means disturbances could bring some chance for showers or storms
to the region, and Tuesday into Wednesday currently looks to be
the best time range for that to occur with a passing shortwave
through within the broader longwave trough. Timing and strength
of the wave details could adjust this window for rainfall. /NF/EC/

&&

.AVIATION...
(12Z TAFS)
Issued at 627 AM CDT Mon Sep 1 2025

Aside from a few high clouds and light east to southeast winds,
quiet conditions will prevail across all TAF sites with VFR
conditions prevailing. /CR/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       91  69  89  68 /  10  20  40  20
Meridian      89  66  88  66 /  10  10  20  10
Vicksburg     92  70  89  68 /  10  20  40  20
Hattiesburg   92  67  91  67 /  10  10  10  10
Natchez       90  69  89  67 /  10  10  30  10
Greenville    91  67  88  66 /  10  30  50  20
Greenwood     92  68  88  66 /  10  30  50  30

&&

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

$$

NF/EC/CR