Laplace, Louisianna 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

148
FXUS64 KLIX 102339 AAA
AFDLIX

Area Forecast Discussion...UPDATED
National Weather Service New Orleans LA
639 PM CDT Sun Aug 10 2025

...NEW AVIATION...

.SHORT TERM...
(This evening through Monday night)
Issued at 1220 PM CDT Sun Aug 10 2025

Locally our PW has rebounded to just over 2", as expected.  We are
seeing some convection building just onshore especially in
Terrebonne and Lafourche parishes. As the day progresses, we
expect to see a light increase in PW and a bit of upper level low
pressure weakness build into the area. Winds in the lower levels
are generally easterly with predominantly southerly winds in the
mid/upper levels. All this, combined with daytime heating, pushes
PoPs into the 50% range in the southern half of the CWA. So, we
can expect the convection to continue building to the south
through this evening. In the northern half of the CWA we are
looking at 30% PoPs which will give us a more "normal" summertime
feel. In either case, the high temps this afternoon will run
around 90-93 range, on the lower end if you have clouds and rain
and upper side with more sun. Tomorrow, we expect a slight
increase in PoPs and a more southeasterly low level wind bringing
higher rain chances (PoPs 50- 70%) across the area. Temps will
remain in the low 90s.

&&

.LONG TERM...
(Tuesday through Saturday night)
Issued at 1220 PM CDT Sun Aug 10 2025

Northerly low dips down and tropical low pressure pushes out of the
Caribbean and into the north central Gulf. With this combination of
features, rain chances build to 70-80% on Tuesday and Wednesday.
High pressure pushes in beginning Thursday and into the weekend
bringing us back to our typical summertime weather pattern, with 30-
50% PoPs daytime highs pushing toward the mid-90s.

&&

.AVIATION...
(00Z TAFS)
Issued at 639 PM CDT Sun Aug 10 2025

Outside of some isolated showers and maybe a storm or two for ASD
and HDC, VFR conditions should continue overnight tonight and into
Monday. By afternoon showers and thunderstorms will again start to
develop. Coverage (as we have seen today) is still in question, so
mostly kept PROBs going through the afternoon (and early evening
for MSY). If coverage does appear to increase on Monday, this may
be nudged a bit to represent that. Otherwise, outside of brief
VIS/CIG reductions within convection VFR should prevail with
generally light winds below 10kts. (Frye)

&&

.MARINE...
Issued at 1220 PM CDT Sun Aug 10 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 convection driven winds and waves
that 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 through Wednesday.

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  73  91  73  88 /  10  50  20  80
BTR  75  92  75  90 /  20  70  20  80
ASD  74  90  73  88 /  30  70  40  80
MSY  80  91  79  89 /  30  70  30  80
GPT  75  89  76  87 /  40  70  50  80
PQL  74  89  74  88 /  30  70  60  80

&&

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

$$

SHORT TERM...DS
LONG TERM....DS
AVIATION...RDF
MARINE...DS