Port Fourchon, LA to Lower Atchafalaya River, LA out 20 - 60 NM Marine Forecast
| Tonight...Southeast Winds 5 To 10 Knots. Seas 1 Foot Or Less, Then Around 2 Feet After Midnight. Wave Detail: Southeast 1 Foot At 4 Seconds, Becoming Southeast 2 Feet At 4 Seconds. |
| Tuesday...Southeast Winds Around 5 Knots. Seas Around 2 Feet. Wave Detail: Southeast 2 Feet At 5 Seconds. A Chance Of Showers And Thunderstorms, Mainly In The Morning. |
| Tuesday Night...South Winds 5 To 10 Knots. Seas Around 2 Feet. Wave Detail: Southeast 2 Feet At 5 Seconds. |
| Wednesday...South Winds 5 To 10 Knots. Seas Around 2 Feet. Wave Detail: Southeast 2 Feet At 6 Seconds. |
| Wednesday Night...South Winds 5 To 10 Knots. Seas Around 2 Feet. Wave Detail: South 2 Feet At 3 Seconds And Southeast 2 Feet At 6 Seconds. |
| Thursday...South Winds 5 To 10 Knots. Seas Around 2 Feet. Wave Detail: Southeast 2 Feet At 6 Seconds. |
| Thursday Night...South Winds 5 To 10 Knots. Seas Around 2 Feet. Wave Detail: South 2 Feet At 5 Seconds. |
| Friday...Southeast Winds Around 5 Knots. Seas Around 2 Feet. Wave Detail: South 2 Feet At 5 Seconds. |
| Friday Night...South Winds 5 To 10 Knots. Seas Around 2 Feet. Wave Detail: Southeast 2 Feet At 5 Seconds. |
| Saturday...East Winds Around 5 Knots. Seas Around 2 Feet. Wave Detail: South 2 Feet At 5 Seconds. |
| Saturday Night...South Winds 5 To 10 Knots. Seas Around 2 Feet. Winds And Seas Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service New Orleans LA 633pm CDT Monday August 10 2026 .SHORT TERM... (Now through Thursday night) Issued at 141pm CDT Monday August 10 2026 The short term can be characterized as typical summer. At least initially. Going into the second half of the short term just uncomfortable. A loft, we will be watching as an upper level ridge slide west over the northern Gulf and into our region by midweek. As it spreads west it also will gradually strengthen leading to quite a bit of subsidence. There will still be a very low shot at rain where the best surface convergence resides along mesoscale boundaries, but with the suppression and drying aloft this will be very uncommon after today. As heigheights and thicknesses increase and rain chances decrease, temperatures are forecast to soar into the middle 90s by midweek and perhaps upper 90s toward the end of the period. Winds will be mostly light and southerly. This will help maintain low level moisture for slightly higher RH values (although some mixing will help some inland). Feels like temperatures early on will climb to around 105 to 107 for most and by midweek we should break the 108F threshold, which is the threshold that requires Heat Advisories. (Frye) Long Term (Friday through Sunday night) Issued at 141pm CDT Monday August 10 2026 A hot pattern will continue to exist to start the long term period. A loft, an H5 596dam heat bubble will reside over southwest Alabama. This feature will continue to promote the suppression of daily convection with little relief from the heat. As well as helping temperatures rise above average. At the surface, winds will remain light and southerly with daily sea/lake breezes that may help somewhat, but will keep relative humidity values on the higher-end. Going further into the weekend the upper ridge spreads westward over Arkansas and continues to strengthen to a 600dam ridge again promoting continued hot conditions. That said, we will be introducing POPs by late Saturday and Sunday as globals are a bit more aggressive with the Quantitative Precipitation Forecast signal over the central Gulf with the best potential being west of the I55 corridor or as far from the center of that heat bubble as possible. There will be a slight uptick in moisture this weekend, which could lead to the need for additional heat headlines basically through much if not all of the long term during the afternoon hours. (Frye) Marine Issued at 141pm CDT Monday August 10 2026 Through the workweek high pressure will dominate the coastal waters, centered just off to the east while the ridge axis basically stretches west across the Gulf Coast. This will lead to rather light winds through the forecast with winds over the near shore waters dictated by diurnal shifts with a sea breeze during the afternoon or a land breeze at night. The outer waters will also see light winds through the forecast, but winds will likely remain southerly to southeasterly. Thunderstorms will be possible each day; however, coverage will likely be more isolated to widely scattered. That said, with any thunderstorm activity expect lightning, heavy rain, gusty winds, and a few waterspouts. (Frye) NOAA New Orleans LA Office: Watches - Warnings - Advisories LA...None. GM...None. MS...None. GM...None. |
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