Stake Island, LA to Southwest Pass of the Mississippi River out 20 - 60 NM Marine Forecast
| Tonight...Northeast Winds 20 To 25 Knots, Diminishing To 10 To 15 Knots. Seas 6 To 8 Feet, Occasionally To 10 Feet, Subsiding To 4 To 6 Feet, Occasionally To 8 Feet After Midnight. Wave Detail: North 8 Feet At 8 Seconds And Northwest 5 Feet At 7 Seconds, Becoming Northeast 6 Feet At 7 Seconds And West 1 Foot At 7 Seconds. |
| Friday...East Winds 10 To 15 Knots, Diminishing To 5 To 10 Knots In The Afternoon. Seas 2 To 4 Feet, Occasionally To 5 Feet. Wave Detail: East 4 Feet At 7 Seconds. |
| Friday Night...East Winds 5 To 10 Knots. Seas Around 2 Feet. Wave Detail: Southeast 2 Feet At 7 Seconds. |
| Saturday...East Winds 5 To 10 Knots. Seas Around 2 Feet. Wave Detail: Southeast 2 Feet At 6 Seconds. A Slight Chance Of Showers. |
| Saturday Night...Southeast Winds Around 10 Knots. Seas Around 2 Feet. Wave Detail: East 2 Feet At 5 Seconds. A Slight Chance Of Showers And Thunderstorms. |
| Sunday...South Winds 10 To 15 Knots. Seas Around 2 Feet. Wave Detail: Southeast 2 Feet At 4 Seconds. A Slight Chance Of Showers. |
| Sunday Night...South Winds 10 To 15 Knots With Gusts Up To 20 Knots, Becoming Southwest 15 To 20 Knots With Gusts Up To 30 Knots After Midnight. Seas 2 To 3 Feet, Building To 3 To 5 Feet, Occasionally To 6 Feet After Midnight. Wave Detail: South 3 Feet At 5 Seconds, Becoming Southwest 4 Feet At 5 Seconds. A Slight Chance Of Showers In The Evening, Then Showers Likely With A Chance Of Thunderstorms After Midnight. |
| Monday...Northwest Winds 25 To 30 Knots. Seas 8 To 11 Feet, Occasionally To 14 Feet, Building To 11 To 15 Feet, Occasionally To 19 Feet In The Afternoon. Wave Detail: Northwest 10 Feet At 6 Seconds And South 3 Feet At 6 Seconds, Becoming Northwest 12 Feet At 8 Seconds And Northeast 12 Feet At 8 Seconds. A Chance Of Showers And Thunderstorms, Mainly In The Morning. |
| Monday Night...North Winds 25 To 30 Knots, Diminishing To 20 To 25 Knots After Midnight. Seas 8 To 11 Feet, Occasionally To 14 Feet. Wave Detail: Northwest 11 Feet At 8 Seconds And North 9 Feet At 8 Seconds. |
| Tuesday...North Winds 20 To 25 Knots, Becoming Northeast 15 To 20 Knots In The Afternoon. Seas 6 To 8 Feet, Occasionally To 10 Feet, Subsiding To 4 To 6 Feet, Occasionally To 8 Feet In The Afternoon. Wave Detail: North 8 Feet At 8 Seconds And Northwest 2 Feet At 7 Seconds, Becoming North 6 Feet At 6 Seconds. |
| Tuesday Night...Northeast Winds 10 To 15 Knots. Seas 3 To 4 Feet, Occasionally To 5 Feet. Winds And Seas Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service New Orleans LA 620pm CDT Thu Mar 12 2026 .SHORT TERM... (This afternoon through Friday night) Issued at 1148am CDT Thu Mar 12 2026 Behind the front that came through last night we are having really nice looking, seasonable weather. Winds have settled to around 10 mph or less and the afternoon high temperature should end up in the mid 60s. Overnight lows tonight dip into the low to mid 40s. Friday begins a short warming trend into the weekend and a sunny, pleasant day. Long Term (Saturday through Wednesday) Issued at 1148am CDT Thu Mar 12 2026 A slow warming trend back into the 80s will occur over the weekend ahead of the next cold front expected for late Sunday into early Monday. This front should be an overnight express for Sunday night/Monday morning. The word express is accurate since this will be moving through at a pace of around 40mph from NW to SE. So, lets get into what this system could produce in the way of storms. Shear values are not impressive but not exactly negligible either. This is in line with all other values like advected surface CAPE of 800+J. These numbers suggest that there is a reason to watch the evolution of this system as there is a few storms that could become marginally severe. The main issue with any of these would be strong straight line winds. With the best dynamics displaced far to the north, there won't be a lot of support for storms to become severe by themselves. This means there will need to be an accessory, and that will end up being the speed of the line coupling with the downdraft of the individual storms along the line. This could briefly cause wind speeds to gust to lower severe limits. Would be surprised if this had even a marginal risk, but we will need to get closer to frontal passage before any higher confidence can be derived. The most noticeable thing with this will be winds and temp falls. At the moment, deterministic values will not show any freezing temps behind this system. The time frame we are looking at is Tuesday morning around sunrise for the coolest temps associated with this front. Turning to the probabilistic side of values, any temps below freezing moves from near 10% at BTR and increases to around 30% for MCB for Tuesday morning. Winds will be much like the front currently moving through Thu morning. The remainder of the week will show a warming trend albeit slowly but overall should be quite nice for spring. Marine Issued at 1148am CDT Thu Mar 12 2026 Winds are easing and will allow headlines to be dropped by sunset. The main thrust of strongest winds is through the NW gulf which will take up waters up to and along the Miss River. Return flow will resume once again early Sat and Sunday but another strong cold front will move through the northern gulf Sunday night into Monday morning bringing strong northerly to NW winds once again. These winds could also be up to gale force at least for a short time as well. Winds and headlines should fall once again Tue night or Wednesday morning of next week. NOAA New Orleans LA Office: Watches - Warnings - Advisories LA...None. GM...Small Craft Advisory until 7pm CDT this evening for GMZ530-532- 534-536-538-550-552-555-557-570-572-575-577. MS...None. GM...Small Craft Advisory until 7pm CDT this evening for GMZ532-534- 536-538-550-552-555-557-570-572-575-577. |
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