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Marine Weather and Tide Forecast for Chalmette, LA

June 17, 2025 12:45 PM CDT (17:45 UTC)
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Sunrise 5:57 AM   Sunset 8:04 PM
Moonrise 12:16 AM   Moonset 11:54 AM 
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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
GMZ534 Lake Borgne- 1007 Am Cdt Tue Jun 17 2025

Rest of today - Southwest winds around 10 knots. Waves 1 foot or less, then around 2 feet this afternoon. Showers and Thunderstorms likely.

Tonight - South winds around 10 knots. Waves around 2 feet. A chance of showers and Thunderstorms, mainly in the evening.

Wednesday - South winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet in the afternoon. A chance of showers and Thunderstorms in the morning, then showers with Thunderstorms likely in the afternoon.

Wednesday night - South winds 5 to 10 knots. Waves around 2 feet in the evening, then 1 foot or less. A slight chance of showers and Thunderstorms.

Thursday - Southwest winds 5 to 10 knots. Waves 1 foot or less. A chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.

Thursday night - Southwest winds 5 to 10 knots. Waves 1 foot or less. A slight chance of showers and Thunderstorms.

Friday - Northwest winds around 5 knots, becoming south in the afternoon. Waves 1 foot or less. A chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.

Friday night - Southwest winds 5 to 10 knots. Waves 1 foot or less. A slight chance of showers and Thunderstorms.

Saturday - Southeast winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet in the afternoon. A chance of showers and Thunderstorms.

Saturday night - South winds 5 to 10 knots. Waves around 2 feet in the evening, then 1 foot or less. A slight chance of showers and Thunderstorms.
winds and waves higher in and near Thunderstorms.
GMZ500 1007 Am Cdt Tue Jun 17 2025

Synopsis for pascagoula to atchafalaya river out 60 nm -
light onshore flow at 10 knots or less is expected through the week at 10 knots or less. Winds east of the ms river will be a touch higher each night. Winds and seas will be locally higher in and around storms.

7 Day Forecast for Marine Location Near Chalmette, LA
   
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Tide / Current for Paris Road Bridge, Mississippi River Delta, Louisiana
  
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Paris Road Bridge
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Tue -- 12:16 AM CDT     Moonrise
Tue -- 05:58 AM CDT     Sunrise
Tue -- 06:42 AM CDT     0.02 feet Low Tide
Tue -- 11:54 AM CDT     Moonset
Tue -- 06:51 PM CDT     0.95 feet High Tide
Tue -- 08:03 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Paris Road Bridge, Mississippi River Delta, Louisiana does not exist in database. Press Edit above and select a valid nearby location.

Paris Road Bridge, Mississippi River Delta, Louisiana, Tide feet
12
am
0.7
1
am
0.5
2
am
0.4
3
am
0.3
4
am
0.1
5
am
0.1
6
am
0
7
am
0
8
am
0.1
9
am
0.1
10
am
0.2
11
am
0.3
12
pm
0.4
1
pm
0.6
2
pm
0.7
3
pm
0.8
4
pm
0.8
5
pm
0.9
6
pm
0.9
7
pm
1
8
pm
0.9
9
pm
0.9
10
pm
0.8
11
pm
0.8

Tide / Current for Shell Beach, Lake Borgne, Louisiana
  
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Shell Beach
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Tue -- 12:14 AM CDT     Moonrise
Tue -- 05:44 AM CDT     0.02 feet Low Tide
Tue -- 05:57 AM CDT     Sunrise
Tue -- 11:53 AM CDT     Moonset
Tue -- 06:04 PM CDT     1.12 feet High Tide
Tue -- 08:01 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Shell Beach, Lake Borgne, Louisiana does not exist in database. Press Edit above and select a valid nearby location.

Shell Beach, Lake Borgne, Louisiana, Tide feet
12
am
0.6
1
am
0.5
2
am
0.3
3
am
0.2
4
am
0.1
5
am
0
6
am
0
7
am
0.1
8
am
0.1
9
am
0.2
10
am
0.4
11
am
0.5
12
pm
0.6
1
pm
0.8
2
pm
0.9
3
pm
1
4
pm
1.1
5
pm
1.1
6
pm
1.1
7
pm
1.1
8
pm
1.1
9
pm
1
10
pm
0.9
11
pm
0.8

Area Discussion for New Orleans/Baton Rouge, LA
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NOTE: mouseover dotted underlined text for definition
FXUS64 KLIX 171517 AAC AFDLIX

Area Forecast Discussion...UPDATED National Weather Service New Orleans LA 1017 AM CDT Tue Jun 17 2025

NEW UPDATE

UPDATE
Issued at 1016 AM CDT Tue Jun 17 2025

Convection continues to bubble across the region late this morning. Coverage is a bit less than yesterday, but this will be temporary as many surface boundaries start to ignite shower and thunderstorm activity into peak daytime heating. With that, decided to drop highs just a bit across the board. No widespread severe weather is anticipated, however, there could be locally heavy rainfall and a strong wind gust or two in the strongest activity, especially with a touch drier air moving into the area in the mid and upper levels from the west. (Frye)

SHORT TERM
(Today through Thursday)
Issued at 256 AM CDT Tue Jun 17 2025

I can see clearly now that rain has ended...for a few hours. Yep thats right more storms can be expected today and tomorrow and Thursday
and
There is already a few showers and a few thunderstorms that have been trying to develop overnight and once the sun comes up storms will quickly start to percolate again.

Nothing has changed and nothing looks to really change for at least another 48 to 60 hours. We remain between two ridges with the Lower MS Valley in the middle of a weakness and even some troughiness.
with no real suppression in place and moisture abundant it won't take much to get convection and then once a few storms get going all it takes is boundary interaction. If storms fire very early then they will likely move through quickly but that would allow for additional storms later in the afternoon and early evening as it will not take anything for us to recover and destabilize. If storms hold off till late morning/midday then we will likely see one more prolonged round of showers and thunderstorms through the afternoon with things quickly quieting down mid/late evening. Favoring more of a 2 clusters of storms approach today given what looks like convection trying to fire already just off to our southwest.

The best things about the numerous storms and cloud cover is it does help contain the afternoon temps some with most of the area only getting into the upper 80s with a few lower 90s. That said can't really say it is much of a relief as the heat index is still climbing into the mid to upper 90s today. However tomorrow and through the week the heat index could be a bigger issue as low level moisture looks to increase with the afternoon heat index back in the low 100s for a good chunk of the area. /CAB/

LONG TERM
(Friday through Monday)
Issued at 256 AM CDT Tue Jun 17 2025

Well if you are ready for Summer it looks like it will finally arrive by the end of the work week and through the weekend. That said rain chances will still remain elevated they will just not be as high as we have been dealing with and storms will likely be a little more scattered. Models are in good agreement with the evolution of the pattern so confidence is high in the forecast.
NBM may be a touch too high with the PoPs but afternoon highs and morning lows look pretty good so no deviations made from the latest NBM values.

Mid lvl pattern finally shifts with our ridge to the west sliding east and building. By late Friday it will be centered over the Lower MS Valley but it will only be a 593dm ridge which is not that stout and with PWs still above 1.8" this may act a little more like a dirty ridge. In addition the center of the ridge will be well north of the area putting us on the southern periphery of it which guess what, yep keeps the elevated rain chances over the area. PoPs will be around 40-60% which is a far cry from the constant 70-90% we have been seeing but still well above normal of 20-40%. H925 temps around 24-25C which if there is less rain and cloud cover should yield a few more mid 90s but given the likelihood of scattered storms and clouds isolated highs around 93-94 may be the best we see Friday, not complaining.

This weekend the ridge will continue to build and by Sunday could be 597dm which is quite a bit stronger the problem is, it will be be centered over the Ohio Valley. With it displaced so far to the NNE we will be well into the easterlies which should yield daily convection with each weak easterly wave that moves across the northern Gulf and into the area. So yes slightly lower PoPs than now but still pretty darn good chance of seeing storms for much of the area.

One thing to mention is we will need to keep a closer eye on the heat index Friday and through the weekend. If highs are able to get into the mid 90s, the boundary layer will be very humid and the heat index values will climb above 100 possibly approaching the mid 100s for a few locations. /CAB/

AVIATION
(12Z TAFS)
Issued at 630 AM CDT Tue Jun 17 2025

With the exception of MCB all terminals are in VFR status and MCB will be back in VFR status as this low stratus quickly burns off in the next hour. Biggest issue is the same as it has been the last week, convection. Storms are already trying to pop to our southwest and those along with additional storms will likely begin to impact terminals by 16/17Z. Obviously with convection, reductions in cigs and vsbys are expected. /CAB/

MARINE
Issued at 256 AM CDT Tue Jun 17 2025

Overall, benign marine conditions expected through the cycle a high pressure dominates the region. Winds should generally be moderate at max with some gusts up to 15 knots or so toward the end of the week as surface high pressure interacts with the leeside trough across the high plains. Otherwise, diurnally driven convection typical for this time of year can be expected with locally higher winds and seas in the heaviest convection. /CAB/

PRELIMINARY POINT TEMPS/POPS
MCB 88 72 90 72 / 60 10 60 10 BTR 90 74 92 75 / 80 10 70 10 ASD 88 74 91 75 / 80 20 70 10 MSY 89 78 92 78 / 80 10 70 20 GPT 86 78 89 77 / 70 30 70 30 PQL 88 74 90 75 / 70 30 70 30

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
NWCL1 - 8761927 - New Canal, LA 10 mi45 minS 2.9G8 83°F 83°F30.02
CARL1 12 mi45 min 80°F
SHBL1 - 8761305 - Shell Beach, LA 16 mi45 minW 1.9G2.9 81°F 85°F30.03
BYGL1 - 8762482 - Bayou Gauche, LA 30 mi45 min 82°F 84°F30.02
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 39 mi45 minWSW 2.9G4.1 84°F30.03


Wind History for New Canal Station, LA
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Airport Reports
   
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KNEW LAKEFRONT,LA 6 sm21 minno data-- Thunderstorm in Vicinity 30.05
KNBG NEW ORLEANS NAS JRB/ALVIN CALLENDER FIELD,LA 13 sm50 minNNE 0710 smMostly Cloudy Thunderstorm 84°F75°F74%30.03
KMSY LOUIS ARMSTRONG NEW ORLEANS INTL,LA 18 sm21 minSSE 0510 smMostly Cloudy82°F75°F79%30.03

Weather Map
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GEOS Local Image of Southeast  
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New Orleans/Baton Rouge, LA,





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