McComb, Mississippi 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

344
FXUS64 KLIX 100422
AFDLIX

Area Forecast Discussion
National Weather Service New Orleans LA
1122 PM CDT Sat Aug 9 2025

...New SHORT TERM, LONG TERM, AVIATION, MARINE...

.SHORT TERM...
(Tonight through Monday night)
Issued at 1119 PM CDT Sat Aug 9 2025

After seeing PWATs below 1.75 the last day or so, we will see
moisture start to return to the area on Sunday with PWATs already
surging up above 2 inches by the afternoon. This comes as we see
winds turn to onshore flow later in the day Sunday and remain that
way through the forecast period. While Sunday won`t see quite as
high of PoPs as the rest of the period, isolated showers and storms
are likely to fire across the area, especially for areas south of I-
12 where PoPs are in the 50-70% range.

Monday can expect somewhat similar conditions as Sunday, but PWATs
are looking to be even higher as that onshore flow continues to
surge moisture in. PoPs for the entire forecast area are in the 60-
80% range mostly throughout the afternoon hours. WOuld not be
shocked to see a couple storms on the stronger side, possibly up to
severe, with locally gusty winds and heavy downpours.

Temperatures won`t se much of a change through most of the period
with scattered to widespread convection each day. Afternoon highs
peak in the low 90s with heat indices peaking around 105F, below any
heat headline criteria.
&&

.LONG TERM...
(Tuesday night through Saturday night)
Issued at 1119 PM CDT Sat Aug 9 2025

Most of the long term period won`t be too much of a change from
Monday. Tuesday and Wednesday may end up being the wettest days of
the week for a good chunk of the area, with PoPs in the 70-80%
range. Once again a couple of these storms have the chance to be
locally strong to even severe with locally gusty winds and heavy
downpours.

Towards the end of the week we finally start to see the PoPs
forecast start to trend down some, into the 50-60% range which is
pretty typical of a summer day down here. Temperatures will also
tick up, with afternoon highs closer to the mid 90s for most areas.
By the end of the week, if rain chances stay on the lower side, may
end up close to heat headline criteria.

&&

.AVIATION...
(06Z TAFS)
Issued at 1119 PM CDT Sat Aug 9 2025

Prevailing VFR at all terminals and they likely remain that way
through at least the mid morning timeframe. By mid morning, we
start to see convection fire across the area. Knowing this, all
terminals have PROB30s in place. Any thunderstorms that move
through could briefly bring lower ceilings and visibilities.

&&

.MARINE...
Issued at 1119 PM CDT Sat Aug 9 2025

Winds and waves will remain mostly calm through the forecast period,
with winds staying below 15kts each day. The only marine concerns
through the forecast period are related to convection. Winds and
waves will be locally higher around any thunderstorms that develop.
The early morning hours have the best chances of marine convection
each day with some storms on the stronger side bringing higher winds
and seas. convective coverage is expected to increase heading into
the work week.

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  91  72  91  73 /  10   0  40  20
BTR  93  74  92  75 /  10  10  50  20
ASD  91  73  90  74 /  30  20  60  30
MSY  92  79  92  79 /  40  30  70  30
GPT  90  75  90  76 /  30  30  60  30
PQL  90  74  90  74 /  30  30  50  30

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...None.
GM...None.
MS...None.
GM...None.
&&

$$

SHORT TERM...HL
LONG TERM....HL
AVIATION...HL
MARINE...HL