Lower Atchafalaya River to Intracoastal City, LA from 20 - 60 NM Marine Forecast
| Tonight...Southwest Winds 15 To 20 Knots With Gusts Up To 25 Knots. Seas 4 To 5 Feet, Occasionally To 6 Feet. Wave Detail: Southwest 5 Feet At 5 Seconds. A Chance Of Showers And Thunderstorms Late. |
| Sunday...West Winds 15 To 20 Knots With Gusts Up To 25 Knots. Seas 4 To 5 Feet, Occasionally To 6 Feet. Wave Detail: Southwest 5 Feet At 6 Seconds. Showers Likely With A Chance Of Thunderstorms In The Morning, Then A Slight Chance Of Showers And Thunderstorms In The Afternoon. |
| Sunday Night...West Winds 10 To 15 Knots. Seas 3 To 5 Feet, Occasionally To 6 Feet, Subsiding To 2 To 3 Feet After Midnight. Wave Detail: Southwest 4 Feet At 6 Seconds, Becoming Southwest 3 Feet At 5 Seconds. A Chance Of Showers With A Slight Chance Of Thunderstorms After Midnight. |
| Monday...West Winds 10 To 15 Knots, Diminishing To 5 To 10 Knots In The Afternoon. Seas 2 To 3 Feet. Wave Detail: West 2 Feet At 5 Seconds. A Slight Chance Of Showers And Thunderstorms In The Morning. |
| Monday Night...Southwest Winds 5 To 10 Knots. Seas Around 2 Feet. Wave Detail: Southwest 2 Feet At 5 Seconds. |
| Tuesday...Southwest Winds 5 To 10 Knots. Seas Around 2 Feet. Wave Detail: Southwest 2 Feet At 5 Seconds. |
| Tuesday Night...South Winds 5 To 10 Knots. Seas Around 2 Feet. |
| Wednesday...South Winds 5 To 10 Knots, Diminishing To Around 5 Knots In The Afternoon. Seas Around 2 Feet. A Slight Chance Of Showers And Thunderstorms. |
| Wednesday Night...South Winds 5 To 10 Knots. Seas Around 2 Feet. |
| Thursday...Southeast Winds Around 5 Knots. Seas Around 2 Feet. A Slight Chance Of Showers And Thunderstorms. |
| Thursday Night...Southeast Winds 5 To 10 Knots. Seas Around 2 Feet. Winds And Seas Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service Lake Charles LA 605pm CDT Sat August 1 2026 (This evening through next Friday) Issued at 1223pm CDT Sat August 1 2026 At the surface, high pressure is in the Gulf while a cold front is draped across the Ark-La-Tex from an area of low pressure in Illinois. Aloft, upper ridging is over the Four Corners region while a trough of low pressure is over the Midwest. As this trough progresses south/southeastward today, it will begin to broaden out becoming the main feature across the E CONUS as we head towards the second half of the weekend. As it does so, it will give the aforementioned cold front a further push south towards the coast. As this boundary crosses the forecast area this evening/tonight, a few showers and/or thunderstorms are expected to develop along/ahead of it, particularly over south central LA as it draws closer to the coast. While this frontal passage will mean very little for us temperature wise, with highs still reaching into the mid-90s tomorrow, it will bring a nice shot of slightly drier air with a brief north/northwest wind shift tonight through tomorrow. Tonight, especially as we approach sunrise, dewpoints are forecasted to drop into the mid-60s across interior SE TX and CENLA. Post sunrise tomorrow, further dry air advection is anticipated, with dewpoints at most locations (except near the coast) likely not getting above 70 degrees tomorrow. While in the grand scheme of things this is not really all that dry, for this time of year it should help things to feel far less oppressive tomorrow even as highs reach into the 90s. Moving into the work week, slow moisture return begins on Monday as winds turn back to the W/SW, followed by a more substantial return of moisture Monday night into Tuesday as the lingering boundary starts to lift off to the north. At the same time, E CONUS upper level troughing will begin to weaken and retreat northward, losing its hold over the forecast area by late Monday. It may leave behind just a slightly weakness aloft over the northern Gulf Coast, between ridging that will be slowly building in from the west and east simultaneously. With this synoptic set up, a few isolated afternoon diurnally driven showers and storms will be possible each afternoon Tues through late next week. In addition, afternoon highs will continue to warm into the mid to upper 90s each day with overnight lows in the mid to upper 70s. Marine Issued at 1223pm CDT Sat August 1 2026 A weak boundary will approach the coastal waters later today, tightening the pressure gradient overhead. This has already begun to result in strengthening southwesterly winds, which will continue into tonight. Tonight into Sunday, westerly winds will increase a bit further with sustained 15-20 kts and gusts to 20-25 kts as the frontal boundary moves through the coastal waters. The boundary will also increase thunderstorm chances late tonight through Sunday. An exercise caution statement has been extended through Sunday morning and a Small Craft Advisory has also been issued through late tonight into Sunday morning. Light southerly flow becomes reestablished Monday through the rest of the week. Fire Weather Issued at 1223pm CDT Sat August 1 2026 Hot and humid conditions will continue today. Rain chances will increase tonight into Sunday as an upper level trough and weak frontal boundary approach the area. A brief period of northwesterly winds are expected tomorrow, bringing some slightly drier air into the region. Minimum RH's Sunday and Monday afternoons are expected to be in the 35-50% range. Winds will turn back out of the south Sunday night into Monday. A few thunderstorms will develop each afternoon next week. NOAA Lake Charles LA Office: Watches - Warnings - Advisories LA...None. TX... Heat Advisory until 7pm CDT this evening for TXZ201-515-615. GM...Small Craft Advisory until 10am CDT Sunday for GMZ450-452-455- 475. Small Craft Advisory from 4am to 10am CDT Sunday for GMZ470- 472. |
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