Lake Pontchartrain and Lake Maurepas Marine Forecast
| Today...Southeast Winds 5 To 10 Knots. Waves 1 Foot Or Less, Then Around 2 Feet This Afternoon. |
| Tonight...South Winds 5 To 10 Knots. Waves Around 2 Feet In The Evening, Then 1 Foot Or Less. |
| Friday...South Winds Around 5 Knots, Becoming Southeast In The Afternoon. Waves 1 Foot Or Less, Then Around 2 Feet In The Afternoon. |
| Friday Night...South Winds 10 To 15 Knots, Diminishing To 5 To 10 Knots After Midnight. Waves Around 2 Feet. |
| Saturday...South Winds 5 To 10 Knots. Waves 1 Foot Or Less, Then Around 2 Feet In The Afternoon. |
| Saturday Night...South Winds 5 To 10 Knots, Becoming Northwest 20 To 25 Knots After Midnight. Waves Around 2 Feet, Building To 3 To 5 Feet After Midnight. A Chance Of Showers With A Slight Chance Of Thunderstorms After Midnight. |
| Sunday...North Winds 25 To 30 Knots, Becoming Northeast 15 To 20 Knots In The Afternoon. Waves 3 To 5 Feet. A Slight Chance Of Showers And Thunderstorms In The Morning. |
| Sunday Night...Northeast Winds 15 To 20 Knots. Waves 3 To 4 Feet. |
| Monday...Northeast Winds 15 To 20 Knots, Becoming East 10 To 15 Knots In The Afternoon. Waves 2 To 4 Feet. |
| Monday Night...East Winds 10 To 15 Knots. Waves 2 To 3 Feet. Winds And Waves Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service New Orleans LA 1243pm CDT Sat Oct 24 2026 .SHORT TERM... (Now through Tuesday night) Issued at 1224pm CDT Sat Oct 24 2026 Strong and deep ridging will remain over the forecast area through Monday. The ridge axis will shift slightly to the east on Tuesday as a weak shortwave trough lifts out of the Four Corners, but a lack of moisture return will keep rain chances minimal through the short term period. With the center of the surface ridge to the north-northeast of the area, a persistent east- northeast wind will keep any low level moisture return at bay. Thus, a continuation of the conditions we have seen the past several days with clear skies, low humidity, and a larger than normal diurnal range of temperature will continue through Tuesday night. Highs will warm into the upper 70s and lower 80s each day and lows will dip into the low to mid 50s inland the upper 50s and lower south of the tidal lakes and along the immediate coast of Louisiana. Long Term (Wednesday through Friday night) Issued at 1224pm CDT Sat Oct 24 2026 The dry pattern will persist through the end of the workweek even as the mid to upper level ridge axis becomes more centered over the eastern Gulf and southeastern CONUS. This dry pattern will be due to continued surface ridging centered to the north of the area maintaining a prevailing east-northeast wind pattern. This pattern will limit low level moisture return and keep rain chances at less than 10 percent through Friday. Temperatures will also continue to exhibit a large diurnal range on the order of 25 to 30 degrees. Highs will warm into the upper 70s and lower 80s and lows will still cool into the low to mid 50s over inland areas and the upper 50s and lower 60s south of the lakes and along the coast. Overall, no significant change from the weather we've seen the past several days is expected as we move through next week. Marine Issued at 1224pm CDT Sat Oct 24 2026 A strong surface high will become centered over the northeastern United States today and then the Mid-Atlantic region Sunday. At the same time, a broad low pressure system will begin to deepen over the Bahamas and Greater Antilles. This will tighten the pressure gradient across the northern Gulf with easterly winds picking up across the open Gulf waters. Winds will become sustained near 20 knots with frequent higher gusts and a Small Craft Advisory for the outer waters will expand to all waters except for lakes Pontchartrain, Maurepas, and Salvador by late this morning. These headlines will likely remain up through the weekend and possibly into next week. Fire Weather Dry conditions are going to persist through the weekend as high pressure remains over the region. Minimum RH values will fall to between 20 and 30 percent for all areas north of I-10 this afternoon. There should be some slight recovery on Sunday with the minimum values between 30 and 40 percent. 20 foot winds are expected to remain near or below 10 mph today and Sunday north of Interstate 10, and 10 to 15 mph over southeast Louisiana south of Interstate 10. Even with lighter winds, the worsening drought conditions and low fuel moisture content will keep wild fire spread potential on the higher side. A Fire Danger Statement remains out due to this higher fire potential even as conditions remain below red flag warning criteria. As we move into the new workweek, increasing humidity values will help to limit fire potential even as conditions remain dry. NOAA New Orleans LA Office: Watches - Warnings - Advisories LA...None. GM...Small Craft Advisory until 7am CDT Monday for GMZ532-534>536- 541-543-551-553-554-557-570-572-575-577. MS...None. GM...Small Craft Advisory until 7am CDT Monday for GMZ534>536-541- 543-551-553-554-557-570-572-575-577. |
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