Marine Weather and Tide Forecast for New Orleans, LA
April 18, 2024 9:28 PM CDT (02:28 UTC) Change Location
Sunrise 6:28 AM Sunset 7:31 PM Moonrise 2:03 PM Moonset 2:54 AM |
GMZ530 Lake Pontchartrain And Lake Maurepas- 307 Pm Cdt Thu Apr 18 2024
Tonight - South winds 5 to 10 knots. Waves around 2 feet this evening, then 1 foot or less. A slight chance of showers early this evening.
Friday - Southwest winds around 5 knots, becoming southeast in the afternoon. Waves 1 foot or less.
Friday night - South winds 5 to 10 knots, becoming southwest after midnight. Waves around 2 feet in the evening, then 1 foot or less.
Saturday - Northeast winds around 5 knots, becoming southeast 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 5 to 10 knots, becoming east after midnight. Waves 1 to 2 feet in the evening, then 1 foot or less. A slight chance of showers and Thunderstorms in the evening, then a chance of showers and Thunderstorms after midnight.
Sunday - Northeast winds 5 to 10 knots, becoming north 10 to 15 knots with gusts up to 20 knots in the afternoon. Waves around 2 feet. A slight chance of Thunderstorms. Showers, mainly in the morning.
Sunday night - North winds 15 to 20 knots with gusts up to 30 knots, diminishing to 10 to 15 knots with gusts up to 20 knots after midnight. Waves 1 foot or less.
Monday - Northeast winds 10 to 15 knots, becoming east 5 to 10 knots in the afternoon. Waves 2 to 3 feet.
Monday night - Southeast winds around 5 knots. Waves 1 foot or less.
Tuesday - East winds 5 to 10 knots. Waves around 2 feet. A slight chance of showers and Thunderstorms in the afternoon.
Tuesday night - Southeast winds 5 to 10 knots. Waves 1 foot or less.
winds and waves higher in and near Thunderstorms.
winds and waves higher in and near Thunderstorms.
GMZ500 307 Pm Cdt Thu Apr 18 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 Sunday morning, and winds will shift to northerly which will remain into Monday as high pressure moves in and exits east. There could be a small window of exercise caution conditions behind this boundary.
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 Sunday morning, and winds will shift to northerly which will remain into Monday as high pressure moves in and exits east. There could be a small window of exercise caution conditions behind this boundary.
Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 182329 AFDLIX
Area Forecast Discussion National Weather Service New Orleans LA 629 PM CDT Thu Apr 18 2024
New AVIATION
SHORT TERM
(This evening through Friday night)
Issued at 303 PM CDT Thu Apr 18 2024
A fairly broad upper level trough pushing south out of Canada will continue to expand across the High Plains to upper Mississippi River Valley the rest of this afternoon and evening. A cold front associated with this trough is moving southeast through OK, TX, and AR. Southerly flow across the region has been slowly increasing moisture levels throughout the column with highest PW's pooling ahead of the boundary in east Texas and northern/central LA. Closer to the CWA, PW's are around 1.5". A weak shortwave sliding across the Lower Mississippi Valley combined with modest low and upper level moisture is just enough to promote scattered light showers/sprinkles. CAMs seem to pick up on this much better than the global models. Therefore, have added them to the afternoon forecast.
Not much in the way of QPF expected, so minimal impacts expected.
Showers should dissipated this evening and overnight with loss of daytime heating. Clouds will hang around tonight and areas of mostly light fog will be possible.
LONG TERM
(Saturday through Wednesday night)
Issued at 303 PM CDT Thu Apr 18 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.
AVIATION
(00Z TAFS)
Issued at 626 PM CDT Thu Apr 18 2024 Mixture of MVFR to IFR conditions are expected for terminals though the early morning hours. There are a few light showers in the area but due to how fleeting and weak they are, opted out of VCSH. Some light fog is possible as well as lowering ceilings especially in the 08-14z timeframe. Once the sun rises, vis and ceilings will improve to VFR. -BL
MARINE
Issued at 303 PM CDT Thu Apr 18 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.
PRELIMINARY POINT TEMPS/POPS
MCB 64 85 65 80 / 0 10 0 40 BTR 69 89 69 86 / 0 0 0 20 ASD 68 87 67 85 / 0 0 0 20 MSY 70 87 69 84 / 0 10 0 10 GPT 68 83 67 82 / 0 10 0 20 PQL 66 86 65 84 / 0 0 0 20
LIX WATCHES/WARNINGS/ADVISORIES
LA...None.
GM...None.
MS...None.
GM...None.
Area Forecast Discussion National Weather Service New Orleans LA 629 PM CDT Thu Apr 18 2024
New AVIATION
SHORT TERM
(This evening through Friday night)
Issued at 303 PM CDT Thu Apr 18 2024
A fairly broad upper level trough pushing south out of Canada will continue to expand across the High Plains to upper Mississippi River Valley the rest of this afternoon and evening. A cold front associated with this trough is moving southeast through OK, TX, and AR. Southerly flow across the region has been slowly increasing moisture levels throughout the column with highest PW's pooling ahead of the boundary in east Texas and northern/central LA. Closer to the CWA, PW's are around 1.5". A weak shortwave sliding across the Lower Mississippi Valley combined with modest low and upper level moisture is just enough to promote scattered light showers/sprinkles. CAMs seem to pick up on this much better than the global models. Therefore, have added them to the afternoon forecast.
Not much in the way of QPF expected, so minimal impacts expected.
Showers should dissipated this evening and overnight with loss of daytime heating. Clouds will hang around tonight and areas of mostly light fog will be possible.
LONG TERM
(Saturday through Wednesday night)
Issued at 303 PM CDT Thu Apr 18 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.
AVIATION
(00Z TAFS)
Issued at 626 PM CDT Thu Apr 18 2024 Mixture of MVFR to IFR conditions are expected for terminals though the early morning hours. There are a few light showers in the area but due to how fleeting and weak they are, opted out of VCSH. Some light fog is possible as well as lowering ceilings especially in the 08-14z timeframe. Once the sun rises, vis and ceilings will improve to VFR. -BL
MARINE
Issued at 303 PM CDT Thu Apr 18 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.
PRELIMINARY POINT TEMPS/POPS
MCB 64 85 65 80 / 0 10 0 40 BTR 69 89 69 86 / 0 0 0 20 ASD 68 87 67 85 / 0 0 0 20 MSY 70 87 69 84 / 0 10 0 10 GPT 68 83 67 82 / 0 10 0 20 PQL 66 86 65 84 / 0 0 0 20
LIX WATCHES/WARNINGS/ADVISORIES
LA...None.
GM...None.
MS...None.
GM...None.
Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | inHg | DewPt |
NWCL1 - 8761927 - New Canal, LA | 4 mi | 59 min | SSE 4.1G | 77°F | 74°F | 30.05 | ||
CARL1 | 10 mi | 59 min | 64°F | |||||
SHBL1 - 8761305 - Shell Beach, LA | 25 mi | 59 min | SE 7G | 75°F | 69°F | 30.06 | ||
BYGL1 - 8762482 - Bayou Gauche, LA | 27 mi | 59 min | 75°F | 78°F | 30.05 | |||
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS | 43 mi | 59 min | SE 9.9G | 82°F | 76°F | 30.02 |
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Airport Reports
EDIT (hide/show)  Help Click EDIT to display multiple airports. Follow links for more data.Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
KNEW LAKEFRONT,LA | 3 sm | 1.6 hrs | SSE 07 | 10 sm | Clear | 79°F | 70°F | 74% | 30.03 | |
KMSY LOUIS ARMSTRONG NEW ORLEANS INTL,LA | 12 sm | 35 min | S 05 | 10 sm | Mostly Cloudy | 75°F | 72°F | 89% | 30.05 | |
KNBG NEW ORLEANS NAS JRB/ALVIN CALLENDER FIELD,LA | 17 sm | 33 min | SSE 05 | 10 sm | Mostly Cloudy | 75°F | 72°F | 89% | 30.04 | |
KASD SLIDELL,LA | 23 sm | 35 min | SSE 07 | 10 sm | Clear | 75°F | 72°F | 89% | 30.04 |
Tide / Current for New Canal USCG station, Lake Pontchartrain, Louisiana
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Tide / Current data from XTide NOT FOR NAVIGATION
New Canal USCG station, Lake Pontchartrain, Louisiana, Tide feet
Paris Road Bridge
Click for Map
Thu -- 03:53 AM CDT Moonset
Thu -- 06:29 AM CDT Sunrise
Thu -- 11:13 AM CDT 0.10 feet Low Tide
Thu -- 03:02 PM CDT Moonrise
Thu -- 07:29 PM CDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 03:53 AM CDT Moonset
Thu -- 06:29 AM CDT Sunrise
Thu -- 11:13 AM CDT 0.10 feet Low Tide
Thu -- 03:02 PM CDT Moonrise
Thu -- 07:29 PM CDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Paris Road Bridge, Mississippi River Delta, Louisiana, Tide feet
12 am |
0.9 |
1 am |
0.9 |
2 am |
0.8 |
3 am |
0.8 |
4 am |
0.7 |
5 am |
0.5 |
6 am |
0.4 |
7 am |
0.3 |
8 am |
0.2 |
9 am |
0.2 |
10 am |
0.1 |
11 am |
0.1 |
12 pm |
0.1 |
1 pm |
0.1 |
2 pm |
0.2 |
3 pm |
0.2 |
4 pm |
0.3 |
5 pm |
0.4 |
6 pm |
0.4 |
7 pm |
0.5 |
8 pm |
0.6 |
9 pm |
0.7 |
10 pm |
0.7 |
11 pm |
0.8 |
New Orleans/Baton Rouge, LA,
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