Lower Atchafalaya River to Intracoastal City, LA from 20 - 60 NM Marine Forecast
| Tonight...South Winds 10 To 15 Knots. Seas 3 To 5 Feet, Occasionally To 6 Feet. Wave Detail: South 5 Feet At 7 Seconds. Patchy Fog. |
| Saturday...South Winds 5 To 10 Knots, Becoming West In The Afternoon. Seas 3 To 4 Feet. Wave Detail: South 4 Feet At 7 Seconds. Patchy Fog. A Chance Of Showers In The Afternoon. |
| Saturday Night...North Winds 20 To 25 Knots, Increasing To 25 To 30 Knots After Midnight. Seas 3 To 4 Feet, Building To 5 To 8 Feet, Occasionally To 10 Feet After Midnight. Wave Detail: Northwest 3 Feet At 4 Seconds And South 3 Feet At 7 Seconds, Becoming Southeast 8 Feet At 8 Seconds And North 6 Feet At 5 Seconds. A Chance Of Showers In The Evening. |
| Sunday...North Winds 25 To 30 Knots, Diminishing To 20 To 25 Knots In The Afternoon. Seas 6 To 9 Feet, Occasionally To 11 Feet, Subsiding To 5 To 7 Feet, Occasionally To 9 Feet In The Afternoon. Wave Detail: Northeast 9 Feet At 7 Seconds, Becoming Northeast 7 Feet At 6 Seconds. |
| Sunday Night...North Winds 20 To 25 Knots With Gusts Up To 30 Knots. Seas 5 To 7 Feet, Occasionally To 9 Feet. Wave Detail: North 6 Feet At 5 Seconds. |
| Monday...North Winds 20 To 25 Knots, Diminishing To 15 To 20 Knots In The Afternoon. Seas 4 To 6 Feet, Occasionally To 8 Feet. Wave Detail: North 6 Feet At 5 Seconds. |
| Monday Night...North Winds 15 To 20 Knots, Becoming Northeast 10 To 15 Knots After Midnight. Seas 2 To 4 Feet. |
| Tuesday...East Winds 10 To 15 Knots, Becoming Southeast 5 To 10 Knots In The Afternoon. Seas 2 To 3 Feet. |
| Tuesday Night...South Winds 10 To 15 Knots, Increasing To 15 To 20 Knots After Midnight. Seas 2 To 4 Feet. |
| Wednesday...South Winds 15 To 20 Knots. Seas 4 To 5 Feet, Occasionally To 6 Feet. |
| Wednesday Night...South Winds 15 To 20 Knots. Seas 4 To 6 Feet, Occasionally To 8 Feet. A Slight Chance Of Showers After Midnight. |
| Area Forecast Discussion National Weather Service Lake Charles LA 527pm 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. NOAA Lake Charles LA Office: Watches - Warnings - Advisories LA...Dense Fog Advisory until 10am CST Saturday for LAZ073-074-152- 241-242-252>254. TX...Dense Fog Advisory until 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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