Breton Sound Marine Forecast
| Rest Of Today...South Winds Around 10 Knots. Waves Around 2 Feet. A Slight Chance Of Showers And Thunderstorms Late This Morning, Then A Chance Of Showers And Thunderstorms This Afternoon. |
| Tonight...South Winds 10 To 15 Knots. Waves 2 To 3 Feet. A Slight Chance Of Showers And Thunderstorms In The Evening, Then A Chance Of Showers And Thunderstorms After Midnight. |
| Thursday...Southwest Winds 5 To 10 Knots. Waves 1 Foot Or Less, Then Around 2 Feet In The Afternoon. Showers Likely With A Chance Of Thunderstorms. |
| Thursday Night...Southwest Winds 5 To 10 Knots. Waves Around 2 Feet. A Chance Of Showers And Thunderstorms. |
| Friday...Northwest Winds 5 To 10 Knots, Becoming Southwest In The Afternoon. Waves 1 Foot Or Less. A Chance Of Showers And Thunderstorms. |
| Friday Night...Southwest Winds 5 To 10 Knots. Waves 1 To 2 Feet. A Slight Chance Of Showers And Thunderstorms In The Evening, Then A Chance Of Showers And Thunderstorms After Midnight. |
| Saturday...North Winds Around 5 Knots, Becoming Southeast In The Afternoon. Waves 1 Foot Or Less, Then Around 2 Feet In The Afternoon. A Chance Of Showers And Thunderstorms. |
| Saturday Night...South Winds 5 To 10 Knots. Waves Around 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...Southeast Winds 5 To 10 Knots. Waves Around 2 Feet. Showers Likely With A Chance Of Thunderstorms. |
| Sunday Night...Southeast Winds Around 10 Knots. Waves Around 2 Feet. A Chance Of Showers And Thunderstorms. Winds And Waves Higher In And Near Thunderstorms. |
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Area Forecast Discussion ...UPDATED National Weather Service New Orleans LA 1223pm CDT Wednesday Jun 18 2025 Long Term (Thursday night through Tuesday) Issued at 258am CDT Wednesday Jun 18 2025 Models continue to show a setup leading to daily convection and warm temperatures. Coverage should be a touch lower Friday and Saturday but after that probably back around scattered to numerous storms. Model consistency and continuity has been rather good but that shouldn't be too surprising in the Summer. The NBM may be a touch too high on Probability of Precipitation across the entire area but not confident enough in any one time range or location to adjust so we will stick with the 50-70% Probability of Precipitation for now. Main protagonist will be the mid level ridge. First it will build to the east over the Lower MS Valley and then through the weekend continue to build to the northeast towards the Ohio River Valley. As was mentioned yesterday with the ridge will build into the Lower MS Valley Friday but it will still not be overwhelming with hgheights expected around 593/594dm and h5 temps around -7C. Both of these aren't overwhelming enough to suppress convection and with PWs expected ata 1.80" we will still likely see scattered storms and guidance is in the 40-50% range for Friday which would be the day that would likely see the greatest impact from the ridge. Convection likely holds off till the afternoon hours and what this will do is it will allow the area to warm up a touch more and with h925 temps around 24/25C highs should have little trouble climbing into the lower 90s across most of the area. Coastal areas likely remain the coolest around 90. This is do surface winds being out of the south and coming off the water. Interior areas will warm the most and there will be a few locations that climb to the mid 90s, possibly hitting 95. Saturday will likely be a carbon copy of Friday or possibly a touch warmer. The ridge will still be centered close to the area slowly lifting to the northeast through the day. Even though it will start to build northeast it will also begin to strengthen and could be approaching 595dm. This is starting to get strong enough to suppress convection a little better. However it is starting to pull away so we probably see the scales remain balanced and thus scattered convection likely impacts the area again. Afternoon highs will be similar or even a degree warmer. Heading into Sunday and the new work week we will likely see rain chances and coverage increase. Storms will likely be able to develop a little earlier and thus highs may be a touch cooler but we are talking like 1-3 degrees cooler so upper 80s to lower 90s. The ridge will become centered over the Ohio Valley and continue to build in strength but with it centered so far to our northeast we will be the the southern periphery. This places us in the easterlies and with that the main features to watch will be any easterly waves which would allow us to provide much better timing of rain. /CAB/ Marine Issued at 258am CDT Wednesday Jun 18 2025 High pressure centered in the Atlantic and stretching east into the Gulf will keep mostly benign conditions outside of storms over the area. Winds will remain generally out of the south around 12 knots or less. Biggest impacts will be driven by diurnally convection each day, especially during the overnight hours and morning. Locally higher winds and seas expected in and around convection. /CAB/ NOAA New Orleans LA Office: Watches - Warnings - Advisories LA...None. GM...None. MS...None. GM...None. |
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