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Marine Weather and Tide Forecast for Bayou Vista, LA

April 23, 2025 6:41 AM CDT (11:41 UTC) Change Location
Sunrise 6:26 AM   Sunset 7:36 PM
Moonrise 2:48 AM   Moonset 2:17 PM 
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NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

Marine Forecasts
   
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NOTE: Zones were updated 3/20/2025
GMZ436 Atchafalaya And East Cote Blanche Bays- 322 Am Cdt Wed Apr 23 2025

Today - Southeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and Thunderstorms late this morning and afternoon.

Tonight - Southeast winds 5 to 10 knots. Bay waters light chop. A chance of showers with a slight chance of Thunderstorms in the evening.

Thursday - Southeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and Thunderstorms.

Thursday night - Southeast winds 5 to 10 knots. Bay waters light chop.

Friday - Southeast winds 5 to 10 knots. Bay waters light chop.

Friday night - Southeast winds 5 to 10 knots. Bay waters light chop.

Saturday - Southeast winds 5 to 10 knots. Bay waters light chop.

Saturday night - South winds 5 to 10 knots. Bay waters light chop.

Sunday - Southeast winds 5 to 10 knots. Bay waters light chop.

Sunday night - South winds 5 to 10 knots. Bay waters light chop.
winds and waves higher in and near Thunderstorms.
GMZ400 322 Am Cdt Wed Apr 23 2025

Synopsis - With high pressure remaining anchored to our east, light to moderate southeast winds will continue for several days. Seas are expected to range from 2 to 4 feet through the week.

7 Day Forecast for Marine Location Near Bayou Vista, LA
   
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Tide / Current for Shell Island, Louisiana
  
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Shell Island
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Wed -- 12:33 AM CDT     1.29 feet High Tide
Wed -- 03:48 AM CDT     Moonrise
Wed -- 06:21 AM CDT     0.30 feet Low Tide
Wed -- 06:30 AM CDT     Sunrise
Wed -- 03:17 PM CDT     Moonset
Wed -- 03:22 PM CDT     1.47 feet High Tide
Wed -- 07:22 PM CDT     0.96 feet Low Tide
Wed -- 07:37 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Shell Island, Louisiana does not exist in database. Press Edit above and select a valid nearby location.

Shell Island, Louisiana, Tide feet
12
am
1.3
1
am
1.3
2
am
1.2
3
am
1
4
am
0.7
5
am
0.4
6
am
0.3
7
am
0.3
8
am
0.4
9
am
0.5
10
am
0.7
11
am
0.9
12
pm
1.1
1
pm
1.3
2
pm
1.4
3
pm
1.5
4
pm
1.4
5
pm
1.3
6
pm
1.1
7
pm
1
8
pm
1
9
pm
1
10
pm
1.1
11
pm
1.2

Tide / Current for Point Chevreuil, Louisiana
  
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Point Chevreuil
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Wed -- 12:41 AM CDT     1.29 feet High Tide
Wed -- 03:49 AM CDT     Moonrise
Wed -- 06:06 AM CDT     0.30 feet Low Tide
Wed -- 06:31 AM CDT     Sunrise
Wed -- 03:18 PM CDT     Moonset
Wed -- 03:30 PM CDT     1.47 feet High Tide
Wed -- 07:07 PM CDT     0.96 feet Low Tide
Wed -- 07:38 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Point Chevreuil, Louisiana does not exist in database. Press Edit above and select a valid nearby location.

Point Chevreuil, Louisiana, Tide feet
12
am
1.3
1
am
1.3
2
am
1.2
3
am
1
4
am
0.7
5
am
0.4
6
am
0.3
7
am
0.3
8
am
0.4
9
am
0.5
10
am
0.7
11
am
0.9
12
pm
1.1
1
pm
1.3
2
pm
1.4
3
pm
1.5
4
pm
1.4
5
pm
1.3
6
pm
1.1
7
pm
1
8
pm
1
9
pm
1
10
pm
1.1
11
pm
1.2

Area Discussion for Lake Charles, LA
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FXUS64 KLCH 230824 AFDLCH

Area Forecast Discussion National Weather Service Lake Charles LA 324 AM CDT Wed Apr 23 2025

New SHORT TERM, LONG TERM, MARINE

KEY MESSAGES

- Rain chances remain elevated through this evening before diminishing later Thursday

- Drier weather is expected to return by the weekend

- Temperatures are expected to run above normal through late April

SHORT TERM
(Today through Friday night)
Issued at 257 AM CDT Wed Apr 23 2025

A decaying stationary boundary lingers from the ARKLATEX region eastward across the Lower Mississippi Valley. Worth noting light winds through the mid morning hours may allow for patchy fog to develop across portions of Acadiana. Broader southeasterly onshore flow persists, however, especially west of the LA / TX border.
Slight strengthening of the gradient between the western Atlantic high pressure and low pressure troughing over the Four Corners area will help firm southerly winds across SWLA throughout the day.
Evening upper air analysis illustrates sufficient lapse rates above 7.0°C/km in the mid levels coupled with a ML CAPE in excess of 1000J/kg*K which can support organized convection throughout this morning and afternoon. That said, the synoptic environment is quite ambiguous for hi-res short range models to best capture precipitation taking place. Ongoing convection over Southern Plains will continue to wain and shift south / east toward the Gulf Coast.
A developing low level cap may slow / mitigate this activity during the mid morning hours before diurnal heating adds stronger surface based components. Needless to say, while a well defined severe threat is not in place, isolated wind / hail threats are still possible. More of a concern is the hydro aspect. Previous two days with a similar mesoscale / synoptic environment have allowed flash flooding to occur where favorable destabilization is realized amid a well moistened lower troposphere. Modifications in the first 6-12 hours of the forecast may be necessary later today to reflect the aforementioned trends.

Setting the short range mesoscale quandary aside, highs will warm into the low - mid 80's today while minor perturbations in the upper level flow modify into the Mississippi Valley into Thursday. At this time, the developing trough over the Four Corners region lifts across the Colorado Rockies shifting the stronger baroclinic environment further north into the Midwest and northern Mississippi Valley. PoPs still remain in the forecast as the local airmass will experience destabilization and allow clusters of convection to occur through the late afternoon- likely on an isolated to scattered scale. Friday, speed convergence aloft increases as broad upper level ridge builds north of Mexico into the Southern Plains.
Therefore, while temperatures trend further in the mid to perhaps the upper 80's, sfc conditions are favored to remain toward the dry side despite onshore flow.

Kowalski / 30

LONG TERM
(Saturday through Wednesday)
Issued at 257 AM CDT Wed Apr 23 2025

Saturday, the region of stronger baroclinicity previously over the Midwest, now moves east and deepens a surface low into New England with a trailing frontal boundary hanging WSW over northern TX.
Locally conditions appear more stable with subsidence inversion developing roughing 2-4km AGL. Dry and warm weather is forecast to stay for the weekend and into the early work week Monday as ridging expands south of the eastern Great Lakes region following the aforementioned surface low trailing off the New England Coast into the NW Atlantic. This pattern will allow for warm and fairly dry weather to stay into the middle of the upcoming week ahead.

Kowalski / 30

AVIATION
(00Z TAFS)

Radar showing clusters of TSRA north of AEX and LFT, not anticipating to affect these terminals this afternoon/early evening. VFR expected this evening, with IFR visibilities/ceilings expected by 06z, with intermittent LIFR visibilities/ceilings between 09-13z. Expecting another round of TSRA between 18-24z Wednesday for all sites with high shower and thunderstorm chances areawide.

08/DML

MARINE
Issued at 257 AM CDT Wed Apr 23 2025

Winds and Seas are generally expected to remain out of the south while remaining well below hazard criteria. That said, areas of patchy fog can be seen on satellite hugging the coast near the Achafalaya attempting to spread west during the AM hours. Steady light SE breezes tonight expected to keep marine fog minimal to null.

30



PRELIMINARY POINT TEMPS/POPS
AEX 84 64 84 66 / 60 30 60 10 LCH 84 69 84 70 / 50 20 30 10 LFT 84 69 84 69 / 50 20 40 10 BPT 82 70 84 70 / 50 20 30 10

LCH WATCHES/WARNINGS/ADVISORIES
LA...None.
TX...None.
GM...None.


Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
TESL1 - Tesoro Marine Terminal - 8764044 - Berwick, LA 0 mi53 minSE 1.9G4.1 68°F29.96
AMRL1 - 8764227 - Amerada Pass, LA 16 mi53 minSE 2.9G5.1 70°F29.96
EINL1 22 mi53 minSE 11G12 69°F29.99
BYGL1 - 8762482 - Bayou Gauche, LA 44 mi53 min 76°F30.01


Wind History for Tesoro Marine Terminal, LA
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Airport Reports
   
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KPTN HARRY P WILLIAMS MEMORIAL,LA 6 sm11 mincalm1/2 smPartly Cloudy Mist 70°F70°F100%30.03

Weather Map
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GEOS Local Image of Southern Mississippi Valley  
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New Orleans/Baton Rouge, LA,





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