Lower Atchafalaya River to Intracoastal City, LA Marine Forecast
| Tonight...South Winds 5 To 10 Knots. Seas Around 2 Feet. Wave Detail: South 2 Feet At 7 Seconds And South 1 Foot At 2 Seconds. Areas Of Dense Fog Until Early Morning, Then Patchy Fog Late. |
| Saturday...South Winds 5 To 10 Knots, Becoming West In The Afternoon. Seas Around 2 Feet. Wave Detail: South 2 Feet At 7 Seconds. Patchy Fog. A Chance Of Showers In The Afternoon. |
| Saturday Night...Northwest Winds 15 To 20 Knots, Becoming North 20 To 25 Knots After Midnight. Seas 2 To 4 Feet. Wave Detail: North 3 Feet At 4 Seconds And South 1 Foot At 7 Seconds. A Slight Chance Of Showers In The Evening. |
| Sunday...North Winds 20 To 25 Knots, Diminishing To 15 To 20 Knots In The Afternoon. Seas 2 To 4 Feet. Wave Detail: North 3 Feet At 3 Seconds. |
| Sunday Night...North Winds 15 To 20 Knots With Gusts Up To 25 Knots. Seas 2 To 3 Feet. Wave Detail: North 3 Feet At 3 Seconds. |
| Monday...North Winds 15 To 20 Knots, Diminishing To 10 To 15 Knots In The Afternoon. Seas 2 To 3 Feet. Wave Detail: North 2 Feet At 3 Seconds. |
| Monday Night...Northeast Winds 10 To 15 Knots. Seas Around 2 Feet In The Evening, Then 1 Foot Or Less. |
| Tuesday...East Winds 5 To 10 Knots, Becoming Southeast In The Afternoon. Seas 1 Foot Or Less. |
| Tuesday Night...South Winds 10 To 15 Knots. Seas 2 To 3 Feet. |
| Wednesday...South Winds 10 To 15 Knots. Seas 2 To 3 Feet. |
| Wednesday Night...South Winds 10 To 15 Knots. Seas 2 To 4 Feet. A Slight Chance Of Showers After Midnight. |
| Area Forecast Discussion National Weather Service Lake Charles LA 1205pm CST Fri Feb 20 2026 .SHORT TERM... (Today through Sunday night) Issued at 1155am CST Fri Feb 20 2026 A frontal system has stalled across inland southeast Texas and central Louisiana. This has left a majority of the forecast area in an unseasonably warm and humid air mass. Over a 10 degree difference in temperatures with the front, 67F at KAEX and 79F at KLCH. The 20/18z upper sounding that is in progress still shows an inversion in place that will help keep any shower activity in check. Still with the moist air mass in place and lift from the front and weak upper level disturbance, some light streamer showers may hang around through this evening. Issued for tonight will be fog and low clouds again. With the warm and moist air mass moving over cooler near shore waters, sea fog is likely to redevelop. Progs show the best chance for the sea fog to move inland will be right along the coast into lower portions of southeast Texas and southwest Louisiana south of the I-10 corridor. Therefore a dense fog advisory will be in effect for that area into Saturday morning. Water vapor imagery shows a Pacific upper level disturbance moving east out of the rockies. This system is expected to merge with a northern stream short wave and deepen as it moves across the Mississippi Valley on Saturday. This will help push a Canadian cold front across the forecast area on Saturday afternoon. Decent moisture out ahead of the front with PWAT (Precipitable Water) values nearing the 90th percentile. Still could be somewhat of a capping inversion in place that will keep shower activity more scattered in nature. CAPE is looking modest and shear vectors are not as strong as last weekends event to go along with a more unidirectional shear. This should help keep the strength of the convection in check. Overall rainfall amounts expected to average between 0.10 to 0.25 inches, with the 90th percentile or reasonably highest rainfall amounts between 0.25 and 0.50 inches. A strong high pressure system will then build in behind the front with the ridge from the Canadian Prairies stretching down through the Plains and toward the Gulf coast by Sunday, will bring a cold Canadian air mass to the forecast area. Could see some brisk northerly winds on Sunday afternoon to go along with low relative humidity values that may bring an increases fire danger depending on how much rain falls on Saturday. Long Term (Monday through Friday) Issued at 1159am CST Fri Feb 20 2026 The cold Canadian air mass will settle in the forecast area through early Tuesday. There is a chance of light freeze for Monday night into Tuesday morning for locations north of the I-10 corridor. Latest NBM probabilities show between a 30 and 50 percent chance of below freezing temperatures during that time period for locations north of the I-10 corridor. A warm up will begin by Wednesday as high pressure moves off to the east and south winds off the Gulf begin. The next chance for rain will be late Thursday into early Friday with a weak frontal boundary. Marine Issued at 1142am CST Fri Feb 20 2026 Light onshore flow will persist through tonight and until a cold front moves across Saturday evening. The potential development of sea fog, dense at times, will continue until the front moves across. Strong and gusty north winds are expected behind the front for Saturday night into Monday. There is the potential for frequent gusts above gale force for Saturday night and Sunday morning. Winds will decrease late Monday into Tuesday as high pressure settles over the coastal waters. Fire Weather Issued at 1147am CST Fri Feb 20 2026 An unseasonably warm and humid air mass will remain in place until a cold front moves across on Saturday afternoon with a few showers and thunderstorms, although overall rainfall amounts are expected to be light to modest. Areas of fog will be possible tonight into Saturday morning, especially near the coast. Minimum afternoon relative humidity values for Saturday are expected to be between 50 and 60 percent. Much cooler and drier conditions behind the front on Sunday with brisk north winds. Minimum afternoon relative humidity values on Sunday are expected to be lower than 30 percent. NOAA Lake Charles LA Office: Watches - Warnings - Advisories LA...Dense Fog Advisory from 8pm this evening to 10am CST Saturday for LAZ073-074-152-241-242-252>254. TX...Dense Fog Advisory from 8pm this evening to 10am CST Saturday for TXZ615-616. GM...Dense Fog Advisory until noon CST Saturday for GMZ430-432-435- 436-450-452-455. Small Craft Advisory from 9pm Saturday to noon CST Sunday for GMZ430-432-435-436. Gale Watch from Saturday evening through Sunday morning for GMZ450-452-455-470-472-475. Small Craft Advisory from noon Sunday to 6am CST Monday for GMZ450-452-455-470-472-475. |
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