Marine Weather and Tide Forecast for Chalmette, LA
 | Sunrise 6:03 AM Sunset 7:48 PM Moonrise 12:00 AM Moonset 9:51 AM |
GMZ534 Lake Borgne- 940 Am Cdt Sat May 17 2025
Rest of today - South winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet this afternoon.
Tonight - Southwest winds 5 to 10 knots. Waves around 2 feet in the evening, then 1 foot or less.
Sunday - South winds 5 to 10 knots. Waves around 2 feet.
Sunday night - South winds around 10 knots. Waves around 2 feet.
Monday - South winds around 10 knots. Waves around 2 feet.
Monday night - South winds around 10 knots. Waves around 2 feet.
Tuesday - South winds 10 to 15 knots. Waves 2 to 3 feet.
Tuesday night - Southwest winds 10 to 15 knots. Waves 2 to 3 feet.
Wednesday - West winds around 10 knots. Waves around 2 feet. A chance of showers and Thunderstorms, mainly in the morning.
Wednesday night - Northwest winds 10 to 15 knots. Waves around 2 feet.
winds and waves higher in and near Thunderstorms.
winds and waves higher in and near Thunderstorms.
GMZ500 940 Am Cdt Sat May 17 2025
Synopsis for pascagoula to atchafalaya river out 60 nm -
a broad area of high pressure will remain over the eastern gulf into early next week. This will allow for a persistent onshore flow of between 10 and 15 knots through the period with locally higher gusts. A cold front will move through the Tuesday night and Wednesday. This front will shift winds to the northwest by Wednesday night. A few Thunderstorms could accompany the front as it moves through on Wednesday, and this could lead to some locally higher winds and seas in close vicinity to the storms.
a broad area of high pressure will remain over the eastern gulf into early next week. This will allow for a persistent onshore flow of between 10 and 15 knots through the period with locally higher gusts. A cold front will move through the Tuesday night and Wednesday. This front will shift winds to the northwest by Wednesday night. A few Thunderstorms could accompany the front as it moves through on Wednesday, and this could lead to some locally higher winds and seas in close vicinity to the storms.
7 Day Forecast for Marine Location Near Chalmette, LA
NEW! Add second zone forecast
| Paris Road Bridge Click for Map Sat -- 06:04 AM CDT Sunrise Sat -- 06:08 AM CDT -0.28 feet Low Tide Sat -- 09:50 AM CDT Moonset Sat -- 06:24 PM CDT 1.33 feet High Tide Sat -- 07:47 PM CDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |
Paris Road Bridge, Mississippi River Delta, Louisiana, Tide feet
| 12 am |
| 0.5 |
| 1 am |
| 0.3 |
| 2 am |
| 0.1 |
| 3 am |
| -0.1 |
| 4 am |
| -0.2 |
| 5 am |
| -0.3 |
| 6 am |
| -0.3 |
| 7 am |
| -0.3 |
| 8 am |
| -0.2 |
| 9 am |
| -0.1 |
| 10 am |
| 0.1 |
| 11 am |
| 0.3 |
| 12 pm |
| 0.4 |
| 1 pm |
| 0.6 |
| 2 pm |
| 0.8 |
| 3 pm |
| 1 |
| 4 pm |
| 1.2 |
| 5 pm |
| 1.3 |
| 6 pm |
| 1.3 |
| 7 pm |
| 1.3 |
| 8 pm |
| 1.3 |
| 9 pm |
| 1.2 |
| 10 pm |
| 1 |
| 11 pm |
| 0.9 |
| Shell Beach Click for Map Sat -- 05:10 AM CDT -0.33 feet Low Tide Sat -- 06:04 AM CDT Sunrise Sat -- 09:50 AM CDT Moonset Sat -- 05:37 PM CDT 1.57 feet High Tide Sat -- 07:46 PM CDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |
Shell Beach, Lake Borgne, Louisiana, Tide feet
| 12 am |
| 0.4 |
| 1 am |
| 0.1 |
| 2 am |
| -0.1 |
| 3 am |
| -0.2 |
| 4 am |
| -0.3 |
| 5 am |
| -0.3 |
| 6 am |
| -0.3 |
| 7 am |
| -0.2 |
| 8 am |
| -0.1 |
| 9 am |
| 0.1 |
| 10 am |
| 0.3 |
| 11 am |
| 0.5 |
| 12 pm |
| 0.7 |
| 1 pm |
| 0.9 |
| 2 pm |
| 1.2 |
| 3 pm |
| 1.3 |
| 4 pm |
| 1.5 |
| 5 pm |
| 1.6 |
| 6 pm |
| 1.6 |
| 7 pm |
| 1.5 |
| 8 pm |
| 1.4 |
| 9 pm |
| 1.2 |
| 10 pm |
| 1 |
| 11 pm |
| 0.8 |
Area Discussion for New Orleans/Baton Rouge, LA
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FXUS64 KLIX 171130 AFDLIX
Area Forecast Discussion National Weather Service New Orleans LA 630 AM CDT Sat May 17 2025
New AVIATION
SHORT TERM
(Today through Sunday)
Issued at 245 AM CDT Sat May 17 2025
Upper ridging over the Gulf, with troughing over Wisconsin and Baja California. At the surface, Bermuda high extends westward across much of the Gulf. Low pressure over Michigan had a cold front southwestward to Texas. Locally, it's a warm and steamy night, with temperatures between 75 and 80 and dew points mainly in the middle 70s.
Shortwaves moving over the ridge will mainly keep precipitation north of the area through Sunday afternoon. Can'te entirely rule out a few showers or storms over southwest Mississippi this afternoon, but that'd be about it. Yesterday's high temperatures look to be a pretty good starting point for high temperatures the next couple days. That would be upper 80s to lower 90s for most of the area, and a few degrees cooler on the Mississippi coast, where the sea breeze may cap off heating before everywhere else. Short of having a thunderstorm, the numeric guidance for overnight lows looks several degrees too cool tonight, with mid 70s more likely than lower 70s.
LONG TERM
(Sunday night through Friday)
Issued at 245 AM CDT Sat May 17 2025
While ridging continues over the southern Gulf for most or all of next week, a strong trough moving through the Middle Mississippi River Valley into the Great Lakes will push a cold front into the area, and possibly through the area, at midweek. Medium range guidance coming into agreement that the only real significant chance of precipitation will be Tuesday night. Current NBM numbers would have a chance of precipitation both Tuesday night and Wednesday, but expect that later runs will back off on the Wednesday PoPs.
Well above normal temperatures will continue until the frontal passage with highs upper 80s and lower 90s, and lows in the mid 70s. By Thursday and Friday mornings, morning lows likely to be at least 10 degrees cooler for much of the area, with some lows across northern portions in the 50s. Highs at the end of next week could range from upper 70s to mid 80s. We'll hold onto the NBM numbers for now.
AVIATION
(12Z TAFS)
Issued at 626 AM CDT Sat May 17 2025
Terminals are a mix of MVFR ceilings and VFR conditions at forecast issuance time. Expect cloud bases to lift above FL030 by mid to late morning, with VFR conditions for the remainder of the daylight hours. MVFR ceilings will redevelop by late evening at several terminals, continuing through mid-morning Sunday. There's a non-zero threat of convection this afternoon at KMCB, but much too low to carry in the terminals.
MARINE
Issued at 245 AM CDT Sat May 17 2025
Can't entirely rule out winds briefly reaching or exceeding 15 knots at times, mainly over the western waters. Overall, any impacts to marine operations should be rather limited, if they occur at all.
PRELIMINARY POINT TEMPS/POPS
MCB 91 71 91 72 / 20 10 0 0 BTR 92 74 92 75 / 10 0 0 0 ASD 90 73 90 73 / 10 0 0 0 MSY 91 75 90 76 / 0 0 0 0 GPT 86 73 85 74 / 10 0 0 0 PQL 87 71 87 72 / 10 0 0 0
LIX WATCHES/WARNINGS/ADVISORIES
LA...None.
GM...None.
MS...None.
GM...None.
Area Forecast Discussion National Weather Service New Orleans LA 630 AM CDT Sat May 17 2025
New AVIATION
SHORT TERM
(Today through Sunday)
Issued at 245 AM CDT Sat May 17 2025
Upper ridging over the Gulf, with troughing over Wisconsin and Baja California. At the surface, Bermuda high extends westward across much of the Gulf. Low pressure over Michigan had a cold front southwestward to Texas. Locally, it's a warm and steamy night, with temperatures between 75 and 80 and dew points mainly in the middle 70s.
Shortwaves moving over the ridge will mainly keep precipitation north of the area through Sunday afternoon. Can'te entirely rule out a few showers or storms over southwest Mississippi this afternoon, but that'd be about it. Yesterday's high temperatures look to be a pretty good starting point for high temperatures the next couple days. That would be upper 80s to lower 90s for most of the area, and a few degrees cooler on the Mississippi coast, where the sea breeze may cap off heating before everywhere else. Short of having a thunderstorm, the numeric guidance for overnight lows looks several degrees too cool tonight, with mid 70s more likely than lower 70s.
LONG TERM
(Sunday night through Friday)
Issued at 245 AM CDT Sat May 17 2025
While ridging continues over the southern Gulf for most or all of next week, a strong trough moving through the Middle Mississippi River Valley into the Great Lakes will push a cold front into the area, and possibly through the area, at midweek. Medium range guidance coming into agreement that the only real significant chance of precipitation will be Tuesday night. Current NBM numbers would have a chance of precipitation both Tuesday night and Wednesday, but expect that later runs will back off on the Wednesday PoPs.
Well above normal temperatures will continue until the frontal passage with highs upper 80s and lower 90s, and lows in the mid 70s. By Thursday and Friday mornings, morning lows likely to be at least 10 degrees cooler for much of the area, with some lows across northern portions in the 50s. Highs at the end of next week could range from upper 70s to mid 80s. We'll hold onto the NBM numbers for now.
AVIATION
(12Z TAFS)
Issued at 626 AM CDT Sat May 17 2025
Terminals are a mix of MVFR ceilings and VFR conditions at forecast issuance time. Expect cloud bases to lift above FL030 by mid to late morning, with VFR conditions for the remainder of the daylight hours. MVFR ceilings will redevelop by late evening at several terminals, continuing through mid-morning Sunday. There's a non-zero threat of convection this afternoon at KMCB, but much too low to carry in the terminals.
MARINE
Issued at 245 AM CDT Sat May 17 2025
Can't entirely rule out winds briefly reaching or exceeding 15 knots at times, mainly over the western waters. Overall, any impacts to marine operations should be rather limited, if they occur at all.
PRELIMINARY POINT TEMPS/POPS
MCB 91 71 91 72 / 20 10 0 0 BTR 92 74 92 75 / 10 0 0 0 ASD 90 73 90 73 / 10 0 0 0 MSY 91 75 90 76 / 0 0 0 0 GPT 86 73 85 74 / 10 0 0 0 PQL 87 71 87 72 / 10 0 0 0
LIX WATCHES/WARNINGS/ADVISORIES
LA...None.
GM...None.
MS...None.
GM...None.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| NWCL1 - 8761927 - New Canal, LA | 10 mi | 47 min | SSW 4.1G | 82°F | 79°F | 29.98 | ||
| CARL1 | 12 mi | 47 min | 73°F | |||||
| SHBL1 - 8761305 - Shell Beach, LA | 16 mi | 47 min | SW 6G | 81°F | 80°F | 30.00 | ||
| BYGL1 - 8762482 - Bayou Gauche, LA | 30 mi | 47 min | 80°F | 82°F | 29.99 | |||
| WYCM6 - 8747437 - Bay Waveland Yacht Club, MS | 39 mi | 47 min | S 8G | 80°F | 29.99 |
Wind History for New Canal Station, LA
toggle option: (graph/table)
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
| KNEW LAKEFRONT,LA | 6 sm | 54 min | WNW 05 | 10 sm | Partly Cloudy | 82°F | 75°F | 79% | 30.02 | |
| KNBG NEW ORLEANS NAS JRB/ALVIN CALLENDER FIELD,LA | 13 sm | 29 min | W 04 | 9 sm | Mostly Cloudy | 82°F | 73°F | 74% | 30.01 | |
| KMSY LOUIS ARMSTRONG NEW ORLEANS INTL,LA | 18 sm | 54 min | var 03 | 10 sm | Partly Cloudy | 82°F | 75°F | 79% | 30.01 |
Link to 1 hour of 5 minute data for KNEW
Terminal Aerodrome Forecast (TAF) for KNEW
Wind History Graph: NEW
(wind in knots)
GEOS Local Image of Southeast
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New Orleans/Baton Rouge, LA,
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