Expires:202608190900;;953461 FZUS54 KLCH 182009 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 308 PM CDT Tue Aug 18 2026 Coastal waters from the Lower Atchafalaya River LA to High Island TX out 60 nautical miles including Sabine and Calcasieu Lakes and Vermilion and Cote Blanche Bays Seas are provided as a range of the average height of the highest one third of the waves, along with the occasional height of the average highest ten percent of the waves. GMZ472-190900- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 308 PM CDT Tue Aug 18 2026 .TONIGHT...Southwest winds 5 to 10 knots, increasing to 10 to 15 knots late. Seas around 2 feet. Wave Detail: Southwest 2 feet at 3 seconds and southeast 1 foot at 8 seconds. .WEDNESDAY...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds and southeast 1 foot at 7 seconds. .WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. .THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds and southeast 1 foot at 8 seconds. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds and southeast 1 foot at 7 seconds. .FRIDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. .SATURDAY...West winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms in the morning. .SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. .SUNDAY...West winds 5 to 10 knots. Seas around 2 feet. .SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Winds and seas higher in and near thunderstorms. $$