Swiftwater, Mississippi Weather Forecast Discussion

045
FXUS64 KJAN 091845
AFDJAN
Area Forecast Discussion
National Weather Service Jackson MS
145 PM CDT Tue Sep 9 2025
...New DISCUSSION...
.DISCUSSION...
Issued at 144 PM CDT Tue Sep 9 2025
Tonight through Wednesday night: Afternoon satellite imagery showed
the circulation around an upper level trough over our CWA and a
disturbance along the southeast Louisiana and Mississippi Gulf
coast. Local radars showed scattered thunderstorms moving west
northwest over southeast Louisiana. Models suggest the disturbance
will help develop a few showers and thunderstorms this afternoon
over our southern zones. After the rain chances end in the south by
this evening, there is no chance of rain forecast through Monday
night. Wednesday the upper level troughing will shift east while
ridging over the central CONUS shifts east as well and begins to
affect our CWA. This will allow temperatures to top out warmer than
normal and in the lower 90s at most locations. Our normal highs run
in the upper 80s. Wednesday night wl still have northwest flow aloft
and surface ridging from the northeast. This will continue to limit
the return of deep moisture over our CWA. Normal lows run in the mid
60s. Lows Thursday morning will range from 63-68F.
Thursday through Monday night: The omega block with ridging over the
central CONUS will last through Monday even as the ridge axis shift
to become centered nearly over the Mississippi river. The surface
ridging from the northeast will continue over our region as well.
This will allow for a warming trend through the period highs topping
out in the mid to upper 90s by Monday. The surface ridge will
continue to help limit moisture return and although it will be hot,
the lower relative humidity will mitigate and heat stress concerns
as peak heat index values look to remain below 105F. the latest
Drought Monitor is showing abnormally dry to moderate drought
conditions across our northern zones. Without any rainfall in the
forecast along with the hot temperatures, conditions are expected
to worsen. /22/
&&
.AVIATION...
(18Z TAFS)
Issued at 1226 PM CDT Tue Sep 9 2025
VFR conditions wl prevail through thee TAF period. /22/
&&
.PRELIMINARY POINT TEMPS/POPS...
Jackson       67  91  65  93 /   0   0   0   0
Meridian      64  90  63  92 /   0   0   0   0
Vicksburg     67  92  66  94 /   0   0   0   0
Hattiesburg   67  92  65  93 /   0   0   0   0
Natchez       67  91  66  93 /  10   0   0   0
Greenville    66  92  66  95 /   0   0   0   0
Greenwood     66  93  65  95 /   0   0   0   0
&&
.JAN WATCHES/WARNINGS/ADVISORIES...
MS...None.
LA...None.
AR...None.
&&
$$
22

NWS JAN Office Area Forecast Discussion