Laplace, Louisianna 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

967
FXUS64 KLIX 230939
AFDLIX

Area Forecast Discussion
National Weather Service New Orleans LA
339 AM CST Sat Nov 23 2024

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

.SHORT TERM...
(Today through Sunday)
Issued at 259 AM CST Sat Nov 23 2024

The cool dry air will stop filtering in today as a sfc high settles
over the area. By this evening, the high will be just east of the
area and we should begin to see the first hint of return flow. The
only thing to watch for over the next few days is fog. This morning,
fog will likely begin to form around ob sites due to their location
but this should not cause impacts. The return flow late today is not
expected to be enough to cause for production overnight in a
widesperad format. The dew pt temps will also be moving upward
overnight and this is more of a warming process. If widespread dense
fog is to form, it would need the dew pt field to be relatively
constant until fog starts to form and the only thing that would
cause the dew pt temp to cool would need to be the production of
fog. But patchy fog is possible with these conditions and since it
would be radiation driven, we will need to see how the lowest dew pt
during the daylight hours stacks up to the lowest temp fcasted for
tonight. Temps tonight will still be cool but moderating temps will
begin to add degrees to each days highs and lows over the weekend.

&&

.LONG TERM...
(Sunday night through Friday)
Issued at 259 AM CST Sat Nov 23 2024

Another cold front will move toward the area by Tue. But as this
front nears, it will feel the tug of the west coast upper trough
becoming progressive. The sfc front will move so fast that it should
make its way into the northern gulf waters with a wind shift over
all the CWA before stalling. This stall will not last long as the
front will feel the pull of the next cold front developing out west.
There is somewhat of a chance of some rainfall with this front, but
nothing heavy and severe wx is not expected with it either. This
second front should be near or moving through toward the end of the
new week. We will need to get closer to this fronts timing to define
any strength and duration of storms with this feature.

&&

.AVIATION...
(12Z TAFS)
Issued at 259 AM CST Sat Nov 23 2024

A few terminals may see MIFG conditions with layered fog moving out
of marsh areas but this should not have a great impact to runways
this morning or Sunday morning. VFR conditions will be the main
player here.

&&

.MARINE...
Issued at 259 AM CST Sat Nov 23 2024

A sfc high will center itself over the northern gulf coast over the
weekend before moving east tonight into Sunday bringing return flow
back to all marine areas. Winds should remain in the 10-15kt range
by the start of the week as a new cold front moves closer to the
area. This front is expected rapidly move into the northern gulf
waters before stalling. This will bring a temporary wind shift from
SE to N early Tue before the front moves back north late Tue night.
These winds are expected to be very light around 10kt as forcing
become less with time as this front stalls. The next front is
expected by mid to late week which should clear the northern gulf
with much stronger northerly winds.

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  65  41  72  56 /   0   0   0   0
BTR  69  46  78  60 /   0   0   0   0
ASD  67  46  75  59 /   0   0   0   0
MSY  66  52  77  62 /   0   0   0   0
GPT  66  48  73  61 /   0   0   0   0
PQL  69  44  77  59 /   0   0   0   0

&&

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

$$

SHORT TERM...TE
LONG TERM....TE
AVIATION...TE
MARINE...TE