Mandeville, LA Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Mandeville, LA

April 17, 2024 4:31 PM CDT (21:31 UTC) Change Location
Sunrise 6:27 AM   Sunset 7:29 PM
Moonrise 1:07 PM   Moonset 2:23 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.

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Marine Forecasts
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GMZ530 Lake Pontchartrain And Lake Maurepas- 331 Pm Cdt Wed Apr 17 2024

Tonight - Southeast winds 5 to 10 knots. Waves around 2 feet this evening, then 1 foot or less. A slight chance of showers this evening.

Thursday - Southeast winds 5 to 10 knots. Waves around 2 feet.

Thursday night - South winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Waves around 2 feet in the evening, then 1 foot or less.

Friday - South winds around 5 knots, becoming southeast in the afternoon. Waves 1 foot or less, then around 2 feet in the afternoon.

Friday night - South winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Waves 2 to 3 feet, subsiding to 1 to 2 feet after midnight.

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

Saturday night - Southeast winds 10 to 15 knots, becoming east around 5 knots after midnight. Waves around 2 feet in the evening, then 1 foot or less. A slight chance of showers and Thunderstorms.

Sunday - East winds 5 to 10 knots, becoming north in the afternoon. Waves 1 to 2 feet. Showers and Thunderstorms likely.

Sunday night - North winds 10 to 15 knots. Waves 2 to 3 feet.

Monday - Northeast winds 5 to 10 knots. Waves around 2 feet.

Monday night - Northeast winds 5 to 10 knots. Waves 1 foot or less.
winds and waves higher in and near Thunderstorms.

GMZ500 331 Pm Cdt Wed Apr 17 2024

Synopsis for pascagoula to atchafalaya river out 60 nm -
a persistent south to southeast wind of around 10 knots will remain in place through Saturday. A weak cold front will slip through the waters Saturday night, and winds will shift to the east and then northeast. These northeast winds will continue into Sunday as high pressure moves in from the north and west.


7 Day Forecast for Marine Location Near Mandeville, LA
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Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 172030 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 330 PM CDT Wed Apr 17 2024

New SHORT TERM, LONG TERM, AVIATION, MARINE

SHORT TERM
(This evening through Thursday night)
Issued at 329 PM CDT Wed Apr 17 2024

A weak upper level low is currently moving through the Great Lakes this afternoon. It's too far north to send a front down to the Gulf Coast. However, moisture convergence extends from that far north down into Louisiana. Radar shows that even though PW is below 1.5", still have isolated showers able to develop over the CWA Thus, have done a last minute update to the forecast to account for this and added some isolated showers to many zones. QPF should be relatively minimal. Going into tomorrow, a stronger upper level trough will push south out of Canada and into the High Plains to upper Mississippi River Valley. Down here on the Gulf Coast, atmospheric column moisture content will be slightly higher than today. 500mb forecast looks to have a barely discernible shortwave possibly passing across the Lower Mississippi Valley. CAMs seem to pick up on this much better than the global models and depict scattered showers possible across the CWA Therefore, have added them to the afternoon forecast. Otherwise, another warm day expected with temps well above normal with highs in the upper 80s.

MEFFER

LONG TERM
(Friday through Tuesday night)
Issued at 329 PM CDT Wed Apr 17 2024

The above mentioned upper trough will continue east across the Great Lakes Friday and Saturday. The upper low aloft will still be fairly flat/zonal with possibly weak ridging in place. That'll still promote slightly more moderating temps. Could see an isolated location or 2 reach 90 degrees on Friday. That'll be within the realm of record highs for the local area.

As we go through the weekend, models show a shortwave on the backside of the northern trough moving through the region. This is what'll be needed to drive a cold front through the CWA on Sunday.
Ample moisture in place with lift from the front will be a good setup for increasing showers and thunderstorms. Latest forecast depicts this with rain chances increasing to near 80% and rainfall totals around an inch. This cold front won't be particularly strong, so only looking at a day of below normal temps with moderating conditions quickly returning as well as above normal temps Tuesday onward.

MEFFER

AVIATION
(18Z TAFS)
Issued at 329 PM CDT Wed Apr 17 2024

Surface obs and visible satellite quickly point out cloud impacts at terminals with MVFR conditions dominating the forecast at pretty much all terminals. As the late afternoon through overnight period progresses, should see cloud decks lower back into IFR heights.
Could see LIFR Thursday morning as well as areas of light fog impact TAF sights. Those lower visibility conditions should improve by mid morning.

MEFFER

MARINE
Issued at 329 PM CDT Wed Apr 17 2024

A surface high pressure centered east of the local coastal waters will remain generally in that position through the rest of this week and starting this weekend. That'll keep onshore flow in place, but weaker pressure gradient should limit wind speeds and sea/wave heights. Current global model runs indicate that a cold front will move through the coast waters Sunday afternoon. Cold air advection won't be particularly strong with this boundary and thus likely only looking at about 12 to 18 hours of Exercise Caution conditions.

MEFFER

PRELIMINARY POINT TEMPS/POPS
MCB 66 83 64 86 / 20 20 0 0 BTR 70 88 68 90 / 20 20 0 0 ASD 68 84 67 87 / 10 10 0 0 MSY 71 84 70 86 / 10 10 0 0 GPT 68 80 67 83 / 10 10 0 0 PQL 66 82 65 86 / 10 10 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 Air TempWater Temp WavesinHgDewPt
NWCL1 - 8761927 - New Canal, LA 21 mi43 min SSE 4.1G11 80°F 75°F30.02
CARL1 28 mi43 min 64°F
SHBL1 - 8761305 - Shell Beach, LA 39 mi43 min SE 13G15 77°F 69°F30.04
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 40 mi43 min SSE 14G16 80°F 75°F30.02
BYGL1 - 8762482 - Bayou Gauche, LA 41 mi43 min 78°F 76°F30.03


Wind History for New Canal Station, LA
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KASD SLIDELL,LA 14 sm38 minSSE 0810 smClear79°F68°F70%30.02
KNEW LAKEFRONT,LA 20 sm38 minSSE 1110 smClear82°F66°F58%30.01
KHDC HAMMOND NORTHSHORE RGNL,LA 22 sm16 minSSE 0810 smPartly Cloudy77°F70°F78%30.02
Link to 5 minute data for KASD


Wind History from ASD
(wind in knots)
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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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Wed -- 03:22 AM CDT     Moonset
Wed -- 06:30 AM CDT     Sunrise
Wed -- 10:41 AM CDT     -0.04 feet Low Tide
Wed -- 02:06 PM CDT     Moonrise
Wed -- 07:28 PM CDT     Sunset
Wed -- 11:17 PM CDT     0.95 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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



Tide / Current for Long Point, Lake Borgne, Louisiana
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Long Point
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Wed -- 03:21 AM CDT     Moonset
Wed -- 06:28 AM CDT     Sunrise
Wed -- 07:14 AM CDT     -0.04 feet Low Tide
Wed -- 02:05 PM CDT     Moonrise
Wed -- 07:27 PM CDT     Sunset
Wed -- 08:37 PM CDT     0.86 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Long Point, Lake Borgne, Louisiana, Tide feet
12
am
0.6
1
am
0.5
2
am
0.4
3
am
0.2
4
am
0.1
5
am
0
6
am
-0
7
am
-0
8
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-0
9
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0
10
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0.1
11
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0.1
12
pm
0.2
1
pm
0.3
2
pm
0.4
3
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0.5
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0.6
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0.7
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0.8
7
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0.8
8
pm
0.9
9
pm
0.9
10
pm
0.8
11
pm
0.8




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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