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Baton Rouge, Louisianna 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Port Allen LA
National Weather Service Forecast for: Port Allen LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 9:46 am CDT Apr 4, 2025
 
Today

Today: Mostly cloudy, with a high near 87. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Mostly Cloudy
then Mostly
Cloudy and
Breezy
Tonight

Tonight: Mostly cloudy, with a low around 75. Southeast wind around 15 mph, with gusts as high as 25 mph.
Mostly Cloudy


Saturday

Saturday: A 40 percent chance of showers and thunderstorms after 1pm.  Cloudy through mid morning, then gradual clearing, with a high near 87. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Breezy.
Decreasing
Clouds then
Chance
T-storms
Saturday
Night
Saturday Night: Showers and possibly a thunderstorm. Some of the storms could be severe.  Low around 66. South wind around 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%.
Severe
T-Storms

Sunday

Sunday: A chance of showers and thunderstorms.  Mostly cloudy, with a high near 70. Northwest wind around 10 mph.  Chance of precipitation is 40%.
Chance
T-storms then
Chance
Showers
Sunday
Night
Sunday Night: Mostly cloudy, with a low around 50. Northwest wind around 10 mph.
Mostly Cloudy


Monday

Monday: Partly sunny, with a high near 62. Northwest wind around 10 mph.
Partly Sunny


Monday
Night
Monday Night: Mostly clear, with a low around 44. North wind 5 to 10 mph.
Mostly Clear


Tuesday

Tuesday: Sunny, with a high near 71. North wind around 5 mph.
Sunny


Hi 87 °F Lo 75 °F Hi 87 °F Lo 66 °F Hi 70 °F Lo 50 °F Hi 62 °F Lo 44 °F Hi 71 °F

 

Today
 
Mostly cloudy, with a high near 87. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
 
Mostly cloudy, with a low around 75. Southeast wind around 15 mph, with gusts as high as 25 mph.
Saturday
 
A 40 percent chance of showers and thunderstorms after 1pm. Cloudy through mid morning, then gradual clearing, with a high near 87. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
 
Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 66. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Sunday
 
A chance of showers and thunderstorms. Mostly cloudy, with a high near 70. Northwest wind around 10 mph. Chance of precipitation is 40%.
Sunday Night
 
Mostly cloudy, with a low around 50. Northwest wind around 10 mph.
Monday
 
Partly sunny, with a high near 62. Northwest wind around 10 mph.
Monday Night
 
Mostly clear, with a low around 44. North wind 5 to 10 mph.
Tuesday
 
Sunny, with a high near 71. North wind around 5 mph.
Tuesday Night
 
Clear, with a low around 48. Northwest wind around 5 mph becoming calm after midnight.
Wednesday
 
Sunny, with a high near 76. Calm wind becoming southeast around 5 mph.
Wednesday Night
 
Clear, with a low around 53. South wind around 5 mph becoming calm.
Thursday
 
Sunny, with a high near 79. Calm wind becoming southwest around 5 mph in the afternoon.

 

Forecast from NOAA-NWS for Port Allen LA.

Weather Forecast Discussion
914
FXUS64 KLIX 040859
AFDLIX

Area Forecast Discussion
National Weather Service New Orleans LA
359 AM CDT Fri Apr 4 2025

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

.SHORT TERM...
(Today through Saturday night)
Issued at 350 AM CDT Fri Apr 4 2025

Not only a warm and breezy day yesterday across the area, but
currently an exceptionally warm and humid night for early April.
Even at 4 AM CDT, temperatures across the area are mainly in the
mid and upper 70s with dew points in the lower and middle 70s. A
couple locations, McComb (76) and New Orleans International
Airport (77), tied their records for warmest low temperatures for
the month of April yesterday.

Upper ridging remains situated between Bermuda and the Bahamas
this morning, with a deep upper trough extending from south-
central Canada to Arizona. At the surface, a frontal boundary
extended from near Pittsburgh to Memphis to the Texas Big Bend
region.

As the next shortwave moves through the base of the upper trough
over the next 24 hours, it will actually pull the northern end of
the frontal boundary to our west westward, while the southern end
creeps eastward. By Saturday morning, the boundary will be near a
Cleveland-Paducah-Brownsville line. This will keep the pressure
gradient fairly tight over the next 24 hours, but perhaps not to
the extent of the last 2 days. Cannot rule out a few rain showers
entirely today across western areas.

The southern end of the trough to the west will see the shortwave
lift northeastward through Texas and Oklahoma Saturday and
Saturday night. Scattered showers and storms will be possible by
late afternoon Saturday, but the main concern for thunderstorms,
some of which are expected to be strong to severe, will be
overnight Saturday night, especially after midnight. Precipitable
water values just ahead of the front will be approaching 1.9
inches, which is pretty much the top of the chart for early April.
Instability and shear will certainly be sufficient for severe
weather, but perhaps not quite as extreme as the last couple
events locally. The greatest (Enhanced Risk, or 3 of 5) threat
appears to be generally to the west of Interstate 55 Saturday
night, but can`t be entirely discounted anywhere in our CWA.

With the extremely moist airmass in place Saturday night, very
heavy rain will certainly be possible. Convection is expected to
be fairly progressive across our area, fortunately, but areas
could pick up a quick 2 inches, locally higher. If that occurs
over an urban area over a short time, that could produce brief
flooding issues.

Extremely warm temperatures are expected to continue until the
front passes, with record temperatures remaining in danger. Low
temperatures Saturday night will be extremely dependent on where
the frontal boundary is at sunrise Sunday, with 70s to the east of
the boundary, and 60s or even upper 50s to the west of the
boundary.

Will continue the Coastal Flood Advisory through the high tide
cycles today and Saturday. At present, looks like about a foot or
so above normal.

&&

.LONG TERM...
(Sunday through Thursday)
Issued at 350 AM CDT Fri Apr 4 2025

Showers and storms could linger over at least the eastern half of
the area Sunday, mainly in the morning. A few severe storms
remain possible Sunday morning east of Interstate 55. A much
cooler airmass will overspread the area late Sunday and Monday,
with high temperatures mainly in the 60s behind the front.
Overnight lows will feel downright chilly compared to the current
weather behind the front for Monday morning through Wednesday
morning. Low temperatures approaching 40 will be possible in some
of the normally cooler spots Tuesday and Wednesday morning.
Temperatures will gradually moderate to near to above normal by
the end of next week, with little or no precipitation once the
Sunday frontal passage departs the area.

&&

.AVIATION...
(12Z TAFS)
Issued at 350 AM CDT Fri Apr 4 2025

Primarily MVFR ceilings this morning, although KGPT remains at IFR
levels. Similar to the last couple days, MVFR conditions during
the morning may improve to VFR, at least temporarily, during the
late morning and afternoon hours at most terminals as breaks
develop in the cloud cover. Most likely to remain at MVFR or IFR
would be KASD and KGPT. All terminals likely to lower again to
MVFR to IFR after sunset. Brief SHRA will be possible, especially
at KBTR and KMCB, but thunder doesn`t appear to be a major threat
for the current package.

Wind speeds will again increase during the daytime hours with
gusts to 25 to 30 knots likely at most terminals, before relaxing
some after sunset.

&&

.MARINE...
Issued at 350 AM CDT Fri Apr 4 2025

Currently looks like hazardous conditions will continue through at
least Saturday night with the strong onshore flow continuing. The
Small Craft Advisory will probably need to be extended through
Saturday night later today, and perhaps into Sunday, as seas will
likely need some time to subside. Could see some gusts to gale
force over the far western waters on Saturday, but not confident
enough to justify a Gale Watch/Warning quite yet. Behind the
frontal passage, could need some Exercise Caution headlines for
portions of the waters Sunday into Tuesday.

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  86  72  85  66 /  30  10  60  90
BTR  88  75  88  66 /  20   0  50  90
ASD  85  74  85  70 /  10  10  30  80
MSY  86  75  86  71 /  10   0  20  80
GPT  80  72  80  69 /  10  10  30  60
PQL  82  71  83  69 /  10   0  30  50

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...Coastal Flood Advisory until 4 PM CDT Saturday for LAZ058-
     066>070-076-078-080-082-084.

GM...Small Craft Advisory until 7 PM CDT Saturday for GMZ530-532-534-
     536-538-550-552-555-557-570-572-575-577.

MS...Coastal Flood Advisory until 4 PM CDT Saturday for MSZ086>088.

GM...Small Craft Advisory until 7 PM CDT Saturday for GMZ532-534-536-
     538-550-552-555-557-570-572-575-577.

&&

$$

SHORT TERM...RW
LONG TERM....RW
AVIATION...RW
MARINE...RW
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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