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Marine Weather and Tide Forecast for Gretna, LA

April 23, 2025 3:26 AM CDT (08:26 UTC) Change Location
Sunrise 6:23 AM   Sunset 7:33 PM
Moonrise 2:44 AM   Moonset 2:12 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
GMZ530 Lake Pontchartrain And Lake Maurepas- 947 Pm Cdt Tue Apr 22 2025

Rest of tonight - Southeast winds around 5 knots. Waves 1 foot or less.

Wednesday - Southeast winds 5 to 10 knots. Waves 1 foot or less. Patchy fog in the morning. A slight chance of showers and Thunderstorms in the morning, then a chance of showers and Thunderstorms in the afternoon.

Wednesday night - Southeast winds 5 to 10 knots. Waves 1 foot or less. A slight chance of showers and Thunderstorms in the evening.

Thursday - Southeast winds 5 to 10 knots. Waves around 2 feet. A slight chance of showers. A slight chance of Thunderstorms in the afternoon.

Thursday night - Southeast winds 5 to 10 knots. Waves around 2 feet in the evening, then 1 foot or less.

Friday - Southeast winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet in the afternoon.

Friday night - South winds 5 to 10 knots, diminishing to around 5 knots after midnight. Waves 1 foot or less.

Saturday - Southeast winds around 5 knots. Waves 1 foot or less.

Saturday night - South winds 5 to 10 knots, becoming southwest after midnight. Waves 1 foot or less.

Sunday - Northeast winds around 5 knots, becoming southeast in the afternoon. Waves 1 foot or less.

Sunday night - South winds 5 to 10 knots. Waves 1 foot or less.
winds and waves higher in and near Thunderstorms.
GMZ500 947 Pm Cdt Tue Apr 22 2025

Synopsis for pascagoula to atchafalaya river out 60 nm -
onshore flow will remain through the weekend. Winds will remain below 15 knots through the week outside of Thunderstorms.

7 Day Forecast for Marine Location Near Gretna, 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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Wed -- 03:43 AM CDT     Moonrise
Wed -- 06:24 AM CDT     Sunrise
Wed -- 10:42 AM CDT     0.06 feet Low Tide
Wed -- 03:11 PM CDT     Moonset
Wed -- 07:32 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
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1
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0.9
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0.8
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0.7
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0.6
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0.7
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11
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0.7

Tide / Current for Shell Beach, Lake Borgne, Louisiana
  
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Shell Beach
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Wed -- 03:42 AM CDT     Moonrise
Wed -- 06:23 AM CDT     Sunrise
Wed -- 09:44 AM CDT     0.08 feet Low Tide
Wed -- 03:10 PM CDT     Moonset
Wed -- 07:31 PM CDT     Sunset
Wed -- 11:38 PM CDT     0.91 feet High Tide
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
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1.1
1
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1
2
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0.9
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0.8
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0.6
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0.9

Area Discussion for New Orleans/Baton Rouge, LA
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NOTE: mouseover dotted underlined text for definition
FXUS64 KLIX 230445 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 1145 PM CDT Tue Apr 22 2025

New AVIATION

SHORT TERM
(This evening through Thursday night)
Issued at 254 PM CDT Tue Apr 22 2025

A somewhat difluent upper level pattern defined by prevailing west-southwesterly flow in the mid and upper levels will remain in place through Thursday night. Embedded within this flow, a weak upper level vorticity maxima will pass through the region tomorrow. A secondary and even weaker vorticity max will slide through on Thursday. These weak forcing mechanisms aloft will interact with a warm and unstable airmass to induce scattered convective activity once again tomorrow and Thursday. The convection will be diurnal in nature with peak activity occurring in the late morning and afternoon hours as temperatures climb into the lower 80s. Although most of the convection will remain weak due to a lack of decent shear and marginal mid-level lapse rates, a few of the storms could develop deep enough updrafts to produce some small hail and gusty winds during the afternoon hours. The bigger concern will continue to be the combination of slow storm motion and above average atmospheric moisture content. Locally high rainfall rates of up to 2 inches per hour could produce some isolated flooding issues, depending on where the rain occurs.
Overall, an overall early Summer like weather regime will continue to dominate through the short term period.

LONG TERM
(Friday through Monday night)
Issued at 254 PM CDT Tue Apr 22 2025

Conditions will begin to shift on Friday as one final embedded weak vorticity maxima passes through the region in advance of a building ridge axis over the southern Plains. Diurnal convection will once again form, but increasing negative vorticity advection ahead of the approaching ridge will increase the mid-level capping inversion will keep the coverage more isolated to widely scattered Friday afternoon. With less cloud development a bit more subsidence in place, temperatures will further warm with highs in the mid 80s expected.

Further warming will take place this weekend into early next week as the deep layer ridge axis becomes firmly entrenched across the central Gulf coast. Strong deep layer subsidence will not only restrict most cloud development, but also allow temperatures to climb a good 10 degrees above average in the upper 80s and lower 90s on Saturday, Sunday, and Monday. Persistent onshore flow through the period will keep dewpoints elevated and conditions very muggy. These higher dewpoints will support heat index values in the low to even mid 90s over a large portion of the forecast area. Only the coastal zones will see more moderate temperatures as a seabreeze forms each day. The onshore flow will also limit overnight cooling as lows only dip into the upper 60s and lower 70s, and have opted to use the NBM 75th percentile output for each night in the extended period. Given that this heat is coming on very early in the season, everyone needs to ensure they remain hydrated and to seek shade if they are participating in outdoor events.

AVIATION
(06Z TAFS)
Issued at 1143 PM CDT Tue Apr 22 2025

Mixture of VFR to MVFR and lower conditions is forecast for the period. The best chance for MVFR and lower will be overnight due to low ceilings and there is also a threat for fog as well. The overall ceilings will lift slightly during the day but chances of showers and storms will be in the forecast and but conditions would lower if a terminal is impacted by a storm. Otherwise winds remain mostly light and southerly. -BL

MARINE
Issued at 254 PM CDT Tue Apr 22 2025

A very Summer like stretch of largely benign weather conditions will be in place across the coastal waters through the weekend and into early next week. A persistent high pressure system parked over the eastern Gulf will keep southeast flow of around 10 knots in place. This will result in seas of 2 to 4 feet through the period. No significant concerns for maritime operations are anticipated.

PRELIMINARY POINT TEMPS/POPS
MCB 65 84 65 84 / 20 50 40 40 BTR 67 84 68 85 / 20 50 40 40 ASD 68 83 68 83 / 10 40 10 20 MSY 69 83 70 83 / 10 30 10 20 GPT 70 80 70 80 / 10 30 10 10 PQL 69 81 68 81 / 10 30 10 10

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
CARL1 4 mi57 min 67°F
NWCL1 - 8761927 - New Canal, LA 6 mi57 minSSE 1.9G2.9 72°F 30.02
BYGL1 - 8762482 - Bayou Gauche, LA 22 mi57 min 72°F 77°F30.02
SHBL1 - 8761305 - Shell Beach, LA 22 mi57 minSE 8G8.9 73°F 68°F30.03
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 47 mi57 minS 8G9.9 81°F 77°F29.99
GISL1 - 8761724 - Grand Isle, LA 48 mi57 minSSE 6G9.9 74°F 78°F30.03


Wind History for New Canal Station, LA
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Airport Reports
   
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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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