Lower Atchafalaya River to Intracoastal City, LA from 20 - 60 NM Marine Forecast
| Today...South Winds 20 To 25 Knots With Gusts Up To 30 Knots. Seas 6 To 9 Feet, Occasionally To 11 Feet, Subsiding To 6 To 7 Feet, Occasionally To 9 Feet This Afternoon. Wave Detail: South 9 Feet At 7 Seconds, Becoming South 7 Feet At 7 Seconds. A Slight Chance Of Showers And Thunderstorms Late This Morning. |
| Tonight...South Winds 15 To 20 Knots With Gusts Up To 25 Knots. Seas 5 To 7 Feet, Occasionally To 9 Feet. Wave Detail: South 7 Feet At 7 Seconds. |
| Friday...South Winds 10 To 15 Knots. Seas 5 To 7 Feet, Occasionally To 9 Feet, Subsiding To 4 To 5 Feet, Occasionally To 6 Feet In The Afternoon. Wave Detail: South 6 Feet At 8 Seconds, Becoming South 5 Feet At 7 Seconds. |
| Friday Night...South Winds 10 To 15 Knots With Gusts Up To 20 Knots. Seas 4 To 5 Feet, Occasionally To 6 Feet. Wave Detail: South 5 Feet At 8 Seconds. |
| Saturday...South Winds 10 To 15 Knots. Seas 3 To 5 Feet, Occasionally To 6 Feet. Wave Detail: South 5 Feet At 7 Seconds. A Slight Chance Of Showers And Thunderstorms. |
| Saturday Night...South Winds Around 15 Knots With Gusts Up To 20 Knots. Seas 3 To 5 Feet, Occasionally To 6 Feet. Wave Detail: South 5 Feet At 7 Seconds. |
| Sunday...South Winds Around 15 Knots. Seas 4 To 5 Feet, Occasionally To 6 Feet. |
| Sunday Night...South Winds 15 To 20 Knots. Seas 4 To 6 Feet, Occasionally To 8 Feet. |
| Monday...South Winds 10 To 15 Knots. Seas 3 To 5 Feet, Occasionally To 6 Feet. |
| Monday Night...South Winds 10 To 15 Knots. Seas Around 3 Feet. Winds And Seas Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service Lake Charles LA 1209am CDT Thu Jun 18 2026 (Today through Wednesday) Issued at 1206am CDT Thu Jun 18 2026 The remnants of post-Tropical Storm Arthur are now onshore near Galveston and are not expected to re-enter the Gulf. While further strengthening is not a concern, we are looking at another round of heavy rain and gusty winds overnight and into Thursday morning. Flash flooding remains a major concern, with an additional 2 to 6 inches of rain possible across Acadiana and southwest Louisiana tonight. Along with the heavy rain, there is also an isolated tornado threat as backing low-level flow will enhance 0-1 km shear, with models showing elongated low-level hodographs. Local impacts will start to diminish on Thursday morning, with the coastal flood advisory being downgraded as surge levels reach roughly one to two feet above MHHW. In addition, we will be paring back the flood watch a little early, at least for parts of southeast Texas and central Louisiana. As Arthur continues to move further inland, subsidence will increase, leading to less cloud cover and an increase in temperatures, with highs in the 90s. With the remnants of Arthur still in east Texas, tropical moisture will cause dew points to be near 80. This combination will spike the apparent temperature well into the triple digits, and a heat advisory will be in effect for southeast Texas. For the rest of the week and heading into the weekend, we are looking at a more typical summertime pattern with temperatures in the mid-90s and high dew points. More heat advisories may be needed through the weekend. Over the weekend, ridging will start to build over the region, keeping rain chances below 20% for most of the area. The break from the rain will be much appreciated, as Quantitative Precipitation Forecast amounts from Friday to next Wednesday are around 0.10 inches. Marine Issued at 1206am CDT Thu Jun 18 2026 The remnants of post-Tropical Storm Arthur are now located inland over Texas, and all Tropical Storm warnings have been cancelled. Strong squalls will continue. Conditions offshore remain dangerous, as sustained winds are between 15 and 25 knots with wave heigheights up to 10 feet. Conditions will start to improve on Thursday, with winds dropping below 20 knots Thursday night. Wave heigheights will take a bit longer to subside, staying above 6 feet well into Friday. Over the weekend and into the start of next week, conditions will be calmer, with prevailing winds around 10 to 15 knots from the south and waves below 5 feet. Fire Weather Issued at 1206am CDT Thu Jun 18 2026 Multiple rounds of heavy rain will limit any fire weather concerns for the next several days. MinRH values will remain above 50% for the rest of the forecast period. NOAA Lake Charles LA Office: Watches - Warnings - Advisories LA...Flood Watch through this evening for LAZ027>033-044-045-055-073- 074-141>143-152>154-241>243-252>254. Wind Advisory until 8pm CDT this evening for LAZ027>033-044-045- 055-073-074-141>143-152>154-241>243-252>254. Coastal Flood Advisory until noon CDT today for LAZ073-074-241- 252>254. TX...Wind Advisory until 8pm CDT this evening for TXZ180-201-259>262- 515-516-615-616. Coastal Flood Advisory until noon CDT today for TXZ615-616. Heat Advisory from 10am this morning to 9pm CDT this evening for TXZ180-201-259>262-515-516-615-616. GM...Small Craft Advisory until 7am CDT Friday for GMZ430-432-435- 436-450-452-455-470-472-475. |
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