Peck, Louisiana Weather Forecast Discussion

140
FXUS64 KJAN 271123 AAA
AFDJAN
Area Forecast Discussion...UPDATED
National Weather Service Jackson MS
623 AM CDT Sat Sep 27 2025
...New AVIATION...
.KEY MESSAGES...
- Dry weather will continue into much of the upcoming week. There
   will be cooler mornings through this weekend, with daytime
   temperatures on an upward trend into early next week.
&&
.DISCUSSION...
Issued at 232 AM CDT Sat Sep 27 2025
Through Monday: Dry weather with a gradual warming trend is expected
through the period. Early morning satellite imagery/RAP analysis
showed the circulation around a closed low over northern Alabama and
the Tennessee valley. This closed low will open up as it lifts out
to the northeast through Sunday and our region will become under the
influence of shortwave ridging aloft from the west. Early morning
surface analysis had a rather weak 1013mb high centered just west of
our CWA that will be replaced by a stronger >1020mb high to our
northwest by Sunday morning. This ridging surface and aloft will
bring in a drier airmass over our region this weekend but moisture
will increase from the east starting Sunday night and continuing
through Monday. The 00Z JAN sounding had a PWAT of an inch and
quarter but the 06Z JAN sounding had a PWAT of one inch. PWATs are
expected to be below one inch until Monday morning. This drier
airmass over our CWA will lend to strong radiational cooling again
tonight allowing morning lows to bottom out in the 50s across the
northern half of the CWA Sunday morning. Afternoon highs will top
out close to normal today and then a couple degrees warmer Sunday.
Temperatures will start off and top out several degrees warmer
Monday thanks to the strengthening ridges surface and aloft along
with the increase in moisture. /22/
Mid to late next week: By the middle of next week, it appears
increasingly likely that a tropical low somewhere off the
southeastern coast in the Atlantic will begin to interact with the
aforementioned upper low. The track of this system remains
uncertain, and while it is not expected to result in hazardous
impacts in our immediate area, we may see increasing chances for
showers toward the end of next week as one or more lobes of deeper
moisture shift over the area. Meanwhile, with the increasing
moisture and easterly flow influence, temperatures are expected to
return closer to normal. /DL/
&&
.AVIATION...
(12Z TAFS)
Issued at 620 AM CDT Sat Sep 27 2025
MVFR/IFR vsby wl continue at GWO until after 13Z before
dissipating. Otherwise, VFR conditions and a light wind will
prevail through the TAF period. /22/
&&
.PRELIMINARY POINT TEMPS/POPS...
Jackson       85  61  88  65 /   0   0   0   0
Meridian      86  62  89  65 /   0   0   0   0
Vicksburg     86  60  88  63 /   0   0   0   0
Hattiesburg   89  63  91  66 /   0   0   0   0
Natchez       86  60  87  62 /   0   0   0   0
Greenville    85  58  87  60 /   0   0   0   0
Greenwood     86  59  88  62 /   0   0   0   0
&&
.JAN WATCHES/WARNINGS/ADVISORIES...
MS...None.
LA...None.
AR...None.
&&
$$
22/DL/22

NWS JAN Office Area Forecast Discussion