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Marine Weather and Tide Forecast for Bayou Cane, LA

April 28, 2025 11:19 PM CDT (04:19 UTC)
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Sunrise 6:21 AM   Sunset 7:39 PM
Moonrise 5:44 AM   Moonset 8:06 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- 220 Pm Cdt Mon Apr 28 2025

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

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

Tuesday night - Southeast winds around 10 knots. Bay waters light chop.

Wednesday - Southeast winds 10 to 15 knots. Bay waters choppy.

Wednesday night - Southeast winds 10 to 15 knots. Bay waters choppy.

Thursday - South winds around 10 knots. Bay waters light chop. A slight chance of showers and Thunderstorms.

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

Friday - South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers in the morning, then a chance of showers and Thunderstorms in the afternoon.

Friday night - East winds around 5 knots. Bay waters smooth. A slight chance of showers and Thunderstorms in the evening.

Saturday - East winds around 5 knots, becoming southeast in the afternoon. Bay waters smooth. A slight chance of Thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon.

Saturday night - Southeast winds around 5 knots. Bay waters smooth. A slight chance of showers and Thunderstorms.
winds and waves higher in and near Thunderstorms.
GMZ400 220 Pm Cdt Mon Apr 28 2025

Synopsis - Surface high pressure ridge across the southeast u.s. And eastern gulf will keep light to moderate south to southeast winds across the coastal waters through the period. The next chance of showers and Thunderstorms expected Friday and Saturday as a cool front approaches and moves across the coastal waters.

7 Day Forecast for Marine Location Near Bayou Cane, LA
   
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Tide / Current for Cocodrie, Terrebonne Bay, Louisiana
  
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Cocodrie
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Mon -- 06:23 AM CDT     Sunrise
Mon -- 06:44 AM CDT     Moonrise
Mon -- 11:51 AM CDT     1.34 feet High Tide
Mon -- 07:37 PM CDT     Sunset
Mon -- 09:04 PM CDT     Moonset
Mon -- 11:27 PM CDT     -0.37 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Cocodrie, Terrebonne Bay, Louisiana does not exist in database. Press Edit above and select a valid nearby location.

Cocodrie, Terrebonne Bay, Louisiana, Tide feet
12
am
-0.1
1
am
-0
2
am
0.2
3
am
0.4
4
am
0.5
5
am
0.7
6
am
0.9
7
am
1
8
am
1.1
9
am
1.2
10
am
1.3
11
am
1.3
12
pm
1.3
1
pm
1.3
2
pm
1.2
3
pm
1.1
4
pm
0.9
5
pm
0.7
6
pm
0.4
7
pm
0.2
8
pm
0
9
pm
-0.2
10
pm
-0.3
11
pm
-0.4

Tide / Current for Shell Island, Louisiana
  
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Shell Island
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Mon -- 06:25 AM CDT     Sunrise
Mon -- 06:46 AM CDT     Moonrise
Mon -- 07:34 AM CDT     1.97 feet High Tide
Mon -- 11:27 AM CDT     1.46 feet Low Tide
Mon -- 03:56 PM CDT     1.53 feet High Tide
Mon -- 07:40 PM CDT     Sunset
Mon -- 09:08 PM CDT     Moonset
Mon -- 10:41 PM CDT     -0.56 feet Low Tide
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
-0.1
1
am
0.2
2
am
0.5
3
am
0.9
4
am
1.3
5
am
1.6
6
am
1.8
7
am
1.9
8
am
1.9
9
am
1.8
10
am
1.6
11
am
1.5
12
pm
1.5
1
pm
1.5
2
pm
1.5
3
pm
1.5
4
pm
1.5
5
pm
1.5
6
pm
1.2
7
pm
0.8
8
pm
0.3
9
pm
-0.2
10
pm
-0.5
11
pm
-0.6

Area Discussion for New Orleans/Baton Rouge, LA
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FXUS64 KLIX 281937 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 237 PM CDT Mon Apr 28 2025

New SHORT TERM, LONG TERM, MARINE

SHORT TERM
(This evening through Tuesday night)
Issued at 131 PM CDT Mon Apr 28 2025

Starting out with this afternoon, it's quiet! But a bit warm/hot with many areas well into the mid to upper 80's. We'll top out around there today then see the Cu field dissipate as we decouple late afternoon into the evening hours revealing a pleasant, calm evening. Continuing to see mid-level suppression caused by the nearby high to our east, as evident by model soundings showing a strong dry subsidence inversion aloft causing compressional warming. This in turn has cranked up convective T's into the upper 90's which will keep a lid on rain chances not only for today but again tomorrow.

Main key item to look for will be the potential for some low clouds/patchy fog overnight tonight from around 09Z-13Z, as indicated by recent NBM ProbVis guidance and proximity model soundings illustrating plenty of surface to near-surface moisture, in conjunction with calm winds around daybreak. While chances remain rather low on the order of 15-30% for vis <3sm to 10-15% for vis <1sm, model soundings and low-level moisture profile provides a plausible idea of low clouds and/or tree-top fog producing VIS around 1-3sm, with greater probs from Baton Rouge to the Florida Parishes. Recent runs of the NBM have expanded some of these probs (albeit still low %) more east into the Atchafalaya Basin and Pearl River Basin, which makes sense given greater surface moisture trapped in these drainage basins along with calm winds to produce fog trapped in these "valleys" (loose term for Louisiana). Did add in patchy fog mention for these areas, down from Washington Parish/Pearl River Co down to around Slidell for a few hours early tomorrow morning but should quickly evaporate as we warm up fast around early/mid morning. Not anticipating dense fog issues at this time.

Tuesday will be rinse/repeat of today mainly, with another seabreeze/lakebreeze developing mid-morning but onshore SE winds will quickly press it north. Cu will develop by mid morning but coastal areas will again clear out late morning through the afternoon with no rain chances.

LONG TERM
(Wednesday through Sunday night)
Issued at 131 PM CDT Mon Apr 28 2025

Mid/late week, we enter the cusp of a steady transition in our upper-level pattern as the lingering upper-level low over the four corners region finally ejects east, helping to break down the 582dm ridge over the SE US. This impulse rides ENE into the ArkLaTex region while downstream of this trough at the surface, we see a weak surface low reflection providing plenty of lift in conjunction with ample moisture/instability to support thunderstorms from Texas into the Ohio Valley region. As the ridge breaks down with time, the aforementioned mid-level subsidence inversion weakens/moistens lowering convective temps, bringing back the afternoon storm chances yet again. Confidence is increasing that we'll see rain chances creep up on Thursday, as storms develop primarily in the afternoon hours, but will even higher on Friday as we get more support of the front into the area to "boost" storm coverage along with prime, moist and unstable conditions across the area. Based on pattern recognition alone, as high pressure builds into the Midwest following behind the surface low over New England, and with the front draped south across the immediate northern Gulf coast, dry air entrainment into the backside of frontogenetic/diurnally forced convection will lead to the risk for damaging winds/downburst in any stronger, potentially severe storms (GFS soundings valid for 18Z FRI indicate around 1000-1200J/KG of DCAPE right before storms develop).
Something to monitor as we've apparently peaked early into the "summertime" convective pattern what feels like a month early given the recent large-scale regime leading to very warm daily temperatures 5-10 degrees above average.

Beyond this into the upcoming weekend, it remains to be seen if the front can press far enough south to allow dry air to work into the region and dry us out or the front washes out keeping just enough moisture over the coast to provide daily afternoon storm chances. Keeping low PoPs due to uncertainty at this time, but can safely say chances are looking best along southern/coastal areas, particularly coastal SE LA and adjacent marine areas.
Something that we'll fine tune as we get closer.

AVIATION
(18Z TAFS)
Issued at 1157 AM CDT Mon Apr 28 2025

VFR conditions are expected to prevail for all terminals this afternoon into the evening hours with SCT to periodic BKN CIGs in the 3-4kft range. Low CIGs will be possible mainly around daybreak Tuesday, generally from 09-13Z dropping flight categories to MVFR.
Some potential for some ground/surface fog as well from KMCB to KBTR that could drop flight categories slightly lower at times due to low VIS, but impacts are expected to remain limited with any ground fog being light. KLG

MARINE
Issued at 131 PM CDT Mon Apr 28 2025

Nearby surface high pressure to the east will continue to promote onshore SE, light winds through mid-week. This persistent fetch over time is expected to lead to a slow climb in seas for Gulf waters up to around 3-4ft with time, but winds will remain on the lighter side through most of the week. The next front and associated rain/storm chances increases Thursday, with greatest coverage/chances on Friday into Saturday, where a few strong to severe storms over marine waters will be possible. Main risks will be locally strong wind gusts to gale or stronger and waterspouts, along with dangerous lightning.

PRELIMINARY POINT TEMPS/POPS
MCB 66 86 66 86 / 0 0 0 0 BTR 69 88 69 88 / 0 0 0 0 ASD 66 86 69 86 / 0 0 0 0 MSY 70 86 71 86 / 0 0 0 0 GPT 69 84 71 83 / 0 0 0 0 PQL 64 86 66 85 / 0 0 0 0

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


Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
BYGL1 - 8762482 - Bayou Gauche, LA 22 mi50 min 74°F 83°F30.14
TESL1 - Tesoro Marine Terminal - 8764044 - Berwick, LA 26 mi50 minSE 4.1G7 75°F 71°F30.09
AMRL1 - 8764227 - Amerada Pass, LA 32 mi50 minSE 4.1G8 76°F 72°F30.09
EINL1 37 mi50 minSE 13G15 77°F 71°F30.1174°F
CARL1 40 mi50 min 69°F
NWCL1 - 8761927 - New Canal, LA 45 mi50 minSE 1.9G2.9 76°F 30.14
PTFL1 45 mi50 min 76°F 30.13
GISL1 - 8761724 - Grand Isle, LA 48 mi50 minSE 6G11 76°F 82°F30.14


Wind History for West Bank 1, Bayou Gauche, LA
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Airport Reports
   
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KHUM HOUMATERREBONNE,LA 6 sm24 minESE 0410 smClear73°F68°F83%30.13

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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