Chandeleur Sound Marine Forecast
| This Afternoon...Southeast Winds Around 15 Knots With Gusts Up To 20 Knots. Waves Around 3 Feet. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Tonight...Southeast Winds Around 15 Knots. Waves Around 3 Feet. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Friday...Southeast Winds 10 To 15 Knots. Waves 2 To 3 Feet. A Chance Of Thunderstorms. A Chance Of Showers In The Morning, Then Showers Likely In The Afternoon. |
| Friday Night...Southeast Winds 10 To 15 Knots. Waves 2 To 3 Feet. A Chance Of Thunderstorms. A Chance Of Showers In The Evening, Then Showers Likely After Midnight. |
| Saturday...Southeast Winds 10 To 15 Knots. Waves 2 To 3 Feet. Showers With A Chance Of Thunderstorms. |
| Saturday Night...Southeast Winds Around 10 Knots. Waves Around 2 Feet. Showers With A Chance Of Thunderstorms. |
| Sunday...Southeast Winds 5 To 10 Knots. Waves 1 Foot Or Less. Showers With A Chance Of Thunderstorms. |
| Sunday Night...East Winds 5 To 10 Knots, Becoming Northeast 10 To 15 Knots After Midnight. Waves 2 To 3 Feet. A Chance Of Thunderstorms. Showers. |
| Monday...Northeast Winds 15 To 20 Knots, Diminishing To 10 To 15 Knots In The Afternoon. Waves 2 To 4 Feet. Showers Likely. A Slight Chance Of Thunderstorms In The Morning, Then A Chance Of Thunderstorms In The Afternoon. |
| Monday Night...Northeast Winds 15 To 20 Knots. Waves 3 To 4 Feet. Showers Likely. A Slight Chance Of Thunderstorms After Midnight. Winds And Waves Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service New Orleans LA 115pm CDT Thu Oct 1 2026 .SHORT TERM... (Now through Sunday night) Issued at 114pm CDT Thu Oct 1 2026 I have good news and bad news. Through the weekend we should be seeing temperatures moderate and drop into the seasonable, early fall range. The bad news is that the temperature drop will be partly due to rain through Sunday night and maybe into Monday morning. I guess we can't win them all. The current set up has us stuck between a low/trough over the southwestern plains and a high to our east. Regional winds are out of the southeast, circulating around the high, and bringing Gulf moisture into the area. As the front associated with the low/trough moves into the area it will carry tropical moisture currently associated with Pacific activity into the area. Between these two moisture sources we are going to see maximum and perhaps record values of PW for this time of year, on the order of 2.6 inches. While we are certain of widespread rain Saturday and Sunday, I don't believe the weekend will be a total washout. The way the systems are moving, there will be lulls in the rain. However, we can't say when and where those lulls will occur. Likewise on the heavy side, there are likely to be periods and areas of heavier rain. So, while we are forecasting total average rain amounts between 3-5 inches there could be isolated areas of heavier rain with accumulations in the 6+ inch range. Generally speaking, the lower amounts will be in the northwest side of the area and the higher amounts to the east. The rainfall intensity is also an issue. With the lulls and surges, we could see instantaneous rates that are high enough to cause minor flash flooding. This flooding would be an impact in areas of slow drainage such as underpasses. Also, associated with any given storm there may be gusty winds and some lightning. Along with the hazards, I should mention that conditions are not at all favorable for severe weather. Tornadoes, hail, and high winds are not on the table for the weekend. Long Term (Monday through Wednesday) Issued at 114pm CDT Thu Oct 1 2026 Monday through Wednesday sees the front discussed in the short term discussion pushed into the Gulf and becoming mostly stationary and a shallow upper trough just to our north. This will set us up with just enough moisture and lift to give us around a 30% chance for afternoon rains. Daytime highs will be in the low 80s, but it will be very humid. Marine Issued at 1050am CDT Thu Oct 1 2026 A tightening pressure gradient will keep southeast winds elevated at 10 to 15 knots through the afternoon and at or just over 15 knots tonight creating some choppy conditions in the waters. Winds will drop back to 10 to 15 knots tomorrow and remain in that range through Sunday. A cold front will then slip through the waters Sunday night and winds will shift to the northeast for Monday and Tuesday. Wind speeds will also rise back to 15 to 20 knots and seas will increase to 2 to 4 feet nearshore and 4 to 6 feet offshore creating another round of choppy seas. Showers and some thunderstorms will begin to increase in coverage Thursday and especially Friday through the weekend as a tropical wave moves through the northern gulf and interacts with the approaching cold front. NOAA New Orleans LA Office: Watches - Warnings - Advisories LA...None. GM...None. MS...None. GM...None. |
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