Sulphur, Louisianna 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

700
FXUS64 KLCH 021717
AFDLCH

Area Forecast Discussion
National Weather Service Lake Charles LA
1217 PM CDT Wed Apr 2 2025

...New AVIATION...

.KEY MESSAGES...

- Windy conditions will continue each day today through Saturday
  as a series of low pressure systems develop over Texas and the
  southern plains.

- A Wind Advisory and Coastal Flood Advisory are in effect
  through this evening and again from Thursday morning through
  Thursday evening.

- The next significant rain chances will be over the weekend with
  a strong cold front.

&&

.UPDATE...
Issued at 1011 AM CDT Wed Apr 2 2025

A strong low pressure system center over NW Missouri this morning
has resulted in a very tight pressure gradient across the center
of the country. Across the forecast area, frequent gusts have been
ongoing since early this morning, with many sites gusting above 40
MPH already. Therefore, I went ahead and bumped hourly winds/wind
gusts up a bit through the remainder of today by blending in the
latest HRRR guidance which better captured the ongoing trends.
Otherwise, the forecast looks to be on track with a warm and humid
day unfolding as expected.

17

&&

.SHORT TERM...
(Today through Friday night)
Issued at 324 AM CDT Wed Apr 2 2025

Winds continue to increase this morning in response to the
increasing pressure gradient between a low over the southern
plains and a ridge sitting off the southeastern U.S. coast.
Observed gusts have already been routinely over 30 MPH verifying the
earlier initiation of the wind advisory near the coast. Both
sustained winds and gusts will climb further after sunrise. No
changes were made to the ongoing wind advisory or coastal flood
advisory. The strong southerly flow will continue to advect very
warm, tropical moisture over the region with surface dewpoints in
the low to mid 70s and plenty of low level moisture aloft that
will keep skies overcast this morning and broken this afternoon.

The low responsible for today`s winds will eject Northeast across
the plains allowing winds to moderate somewhat overnight although
gusts between 20 and 25 knots are still expected. A series of
weaker surface disturbances will develop across central and
northeast Texas Thursday and Friday maintaining a tight pressure
gradient and gusty winds. While maximum gusts may not be quite as
strong Thursday as today, a wind advisory and coastal flood
advisory have been issued as sustained winds of 20-25 with gusts
to 35 are still expected. Wind and Coastal Flood Advisories will
likely be needed again Friday.

Jones

&&

.LONG TERM...
(Saturday through Wednesday)
Issued at 324 AM CDT Wed Apr 2 2025

There remains good agreement between models on the passage of a
potent cold front Saturday afternoon into Saturday night likely
accompanied by a squall line with discreet cells out ahead of it.
Forecast parameters appear generally favorable for severe
convection to develop. The well established warm, tropical airmass
will also favor heavy rain producing thunderstorms. While these
are expected to be moving across at a decent rate, high rainfall
rates could lead to a risk for street flooding. Elevated gradient winds
will continue ahead of the boundary Saturday and wind and coastal
flood advisories will likely continue until winds finally come
down behind the fropa Saturday night.

A much drier and significantly cooler airmass is still expected
to advect in behind the front dropping afternoon highs into the
upper 60s and lows in the 40s Sunday through mid week with another
cold front looking likely late next week.

Jones

&&

.AVIATION...
(18Z TAFS)
Issued at 1214 PM CDT Wed Apr 2 2025

Strong and gusty southerly winds will be the main issue through
the forecast period. Now through this evening, frequent gusts near
35-40 kts are likely to continue at all sites, along with
sustained winds near 18-25 kts. This evening into tonight, winds
relax slightly but frequent gusts in the 20-30 kts range continue,
followed by an increase in winds again tomorrow by the mid morning
hours. Otherwise, mainly MVFR CIGs expected with a brief period of
IFR overnight. Some very like mist/patchy fog will also be
possible through the early morning hours prior to sunrise however,
this shouldn`t become to much of an issue as elevated winds will
keep significant fog at bay.


&&

.MARINE...
Issued at 324 AM CDT Wed Apr 2 2025

Areas of sea fog are possible this morning, but dense fog should
remain patchy if present at all with onshore flow increasing as an
area of low pressure develops and moves across the Plains. South
winds of 15 to 25 knots with gusts to 30 knots are expected. Seas
will build in response to between 4 and 10 feet. The strong, gusty
winds will persist through Saturday as the area remains caught
between a ridge of high pressure to the east and a trough of low
pressure to the west.

&&

.PRELIMINARY POINT TEMPS/POPS...
AEX  71  88  72  87 /  10  10  10  30
LCH  73  83  73  83 /   0   0  10  10
LFT  73  85  74  85 /   0   0   0  10
BPT  73  84  74  84 /   0   0  10  10

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...Wind Advisory until 7 PM CDT this evening for LAZ027>033-044-045-
     055-073-074-141>143-152>154-241>243-252>254.

     Wind Advisory from 7 AM to 7 PM CDT Thursday for LAZ027>033-044-
     045-055-073-074-141>143-152>154-241>243-252>254.

     Coastal Flood Advisory until 10 PM CDT this evening for LAZ073-
     074-241-252>254.

     Coastal Flood Advisory from 6 AM to 10 PM CDT Thursday for
     LAZ073-074-241-252>254.

TX...Wind Advisory until 7 PM CDT this evening for TXZ180-201-259>262-
     515-516-615-616.

     Wind Advisory from 7 AM to 7 PM CDT Thursday for TXZ180-201-
     259>262-515-516-615-616.

     Coastal Flood Advisory until 10 PM CDT this evening for TXZ615-
     616.

     Coastal Flood Advisory from 6 AM to 10 PM CDT Thursday for
     TXZ615-616.

GM...Small Craft Advisory until 1 AM CDT Friday for GMZ430-432-435-
     436-450-452-455-470-472-475.

&&

$$

SHORT TERM...66
LONG TERM....66
AVIATION...17