Marrero, Louisianna 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

102
FXUS64 KLIX 252326
AFDLIX

Area Forecast Discussion
National Weather Service New Orleans LA
626 PM CDT Tue Aug 25 2026

...New AVIATION...

.KEY MESSAGES...
Updated at 621 PM CDT Tue Aug 25 2026

- Scattered to numerous showers and thunderstorms are forecast
  during the mid to late afternoon hours through the work week. A
  few storms could become strong to severe each day. The main
  threat from any severe storms will be damaging wind gusts.
  Frequent lightning and brief periods of  heavy rain will also
  be possible from these storms. Stay weather aware and remember
  when thunder roars, go indoors.

- The increase in rain chances and cloud cover will help limit
  heat threats through the week, however, heat index values may
  still approach advisory criteria each day before thunderstorms
  develop by early afternoon. Those with outdoor plans should
  continue to take precautions to avoid heat-related illnesses.
  Stay hydrated and take breaks in the shade or air conditioning
  if possible.

&&

.SHORT TERM...
(Now through Friday)
Issued at 1128 AM CDT Tue Aug 25 2026

Upper level ridging will persist through Friday over
the area. Southerly surface winds will help to advect warm air and
moisture into the region, increasing humidities. PW values will be
around 2 inches for much of the area, especially toward the weekend.
Generally, daily afternoon and evening scattered storms will be
expected through Friday. These storms will have the potential for
frequent lightning and gusty subsevere winds (40-50mph). Severe
weather is not expected at this time, but strong storms are most
likely Thursday.

High temperatures will be in the low to mid 90s
with heat index values in the 103-108 degree range. With increasing
rain chances toward the weekend, this will keep temperatures from
getting too oppressive. So, we are not expecting heat advisories for
the rest of the week. MSW

&&

.LONG TERM...
(Friday night through Monday)
Issued at 1128 AM CDT Tue Aug 25 2026

A shortwave moves through the area this weekend and
lingers over the area, enhancing rain chances for the region.
Scattered to numerous showers and storms will be expected Saturday
and Sunday. These storms are not expected to be severe, but could
have frequent lightning and gusty subsevere winds (40-50mph). But
with higher PWs around 2 inches, locally heavy rainfall could be a
concern for the weekend inside of any training or slow moving
storms.

It will be something we will be monitoring as we get closer
to the weekend. There are still some uncertainties in the long
range forecast, so if the pattern changes a little, it could be
drier than the current forecast. We will monitor how things
change over the next 1-2 days. MSW

&&

.AVIATION...
(00Z TAFS)
Issued at 621 PM CDT Tue Aug 25 2026

The main aviation concern will continue to be daily showers and
storms. Ongoing convection should wane in the next couple hours
as they lose the support of daytime heating. In areas where
heavier rain fell, light fog will be possible around daybreak and
have included TEMPO groups at a few terminals to cover this. Going
into Wednesday, expect convection to begin firing after 18z, with
the most likely timing of any impact during the mid to late
afternoon hours. With uncertainty in exact timing 24 hours out,
have included TEMPO or PROB30 groups for gusty winds and MVFR
conditions associated with thunderstorms. Although it`s likely a
few terminals will see IFR conditions and stronger winds than
advertised, exact timing and location of the strongest storms is
not confident enough to include in the TAFs at this time.

&&

.MARINE...
Issued at 1128 AM CDT Tue Aug 25 2026

Surface high pressure over the Gulf will maintain a
generally weak pressure gradient through much of the period. Weak
and variable winds around 5 to 10 knots and varying between
southerly and westerly will predominate through the week. Scattered
thunderstorms will remain possible every day with winds and waves
higher in and near this activity.

&&

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

$$

SHORT TERM...MSW
LONG TERM....MSW
AVIATION...DM
MARINE...MSW