Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
945 FZUS54 KLCH 200850 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 350 AM CDT Sun Apr 20 2025 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. GMZ400-202130- 350 AM CDT Sun Apr 20 2025 .SYNOPSIS... A tight gradient between high pressure to the east and low pressure over the Plains is bringing about a prolonged period of long fetch across the northern Gulf. This modest southerly flow will continue to result in elevated seas into early Monday, although conditions will begin to improve through the day. The next chance of rainfall comes today when a frontal boundary nears the region, with isolated to scattered showers and thunderstorms expected. $$ GMZ430-202130- Sabine Lake- 350 AM CDT Sun Apr 20 2025 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...South winds 15 to 20 knots with gusts up to 25 knots. Lake waters rough. A chance of showers and thunderstorms late this morning and early afternoon. A slight chance of showers and thunderstorms late. .TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Lake waters choppy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .MONDAY...South winds 5 to 10 knots. Lake waters light chop. A chance of thunderstorms. Showers likely, mainly in the morning. .MONDAY NIGHT...Southeast winds around 5 knots. Lake waters smooth. .TUESDAY...Southeast winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms in the morning, then showers likely with a slight chance of thunderstorms in the afternoon. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms after midnight. .WEDNESDAY...Southeast winds 5 to 10 knots. Lake waters light chop. Showers likely with a chance of thunderstorms. .WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. .THURSDAY...Southeast winds 10 to 15 knots. Lake waters choppy. A chance of showers and thunderstorms. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Lake waters choppy. Winds and waves higher in and near thunderstorms. $$ GMZ432-202130- Calcasieu Lake- 350 AM CDT Sun Apr 20 2025 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...Southeast winds 15 to 20 knots with gusts up to 25 knots. Lake waters rough. A slight chance of showers and thunderstorms this afternoon. .TONIGHT...South winds 10 to 15 knots with gusts up to 25 knots, diminishing to 5 to 10 knots after midnight. Lake waters choppy. A chance of showers and thunderstorms after midnight. .MONDAY...South winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. .TUESDAY...Southeast winds 5 to 10 knots. Lake waters light chop. A chance of showers. A chance of thunderstorms, mainly in the morning. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .WEDNESDAY...Southeast winds 5 to 10 knots. Lake waters light chop. Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southeast winds around 10 knots. Lake waters light chop. .THURSDAY...Southeast winds 10 to 15 knots. Lake waters choppy. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Lake waters choppy. Winds and waves higher in and near thunderstorms. $$ GMZ435-202130- Vermilion and West Cote Blanche Bays- 350 AM CDT Sun Apr 20 2025 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...Southeast winds 15 to 20 knots. Bay waters rough. .TONIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Bay waters choppy. .MONDAY...South winds 5 to 10 knots. Bay waters light chop. A chance of showers. A chance of thunderstorms in the afternoon. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms after midnight. .TUESDAY...Southeast winds 5 to 10 knots. Bay waters light chop. A chance of showers. A chance of thunderstorms, mainly in the morning. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. .WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters light chop. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southeast winds around 10 knots. Bay waters light chop. .THURSDAY...Southeast winds 10 to 15 knots. Bay waters choppy. A slight chance of showers and thunderstorms. .THURSDAY NIGHT...Southeast winds around 10 knots. Bay waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ436-202130- Atchafalaya and East Cote Blanche Bays- 350 AM CDT Sun Apr 20 2025 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...Southeast winds 10 to 15 knots with gusts up to 20 knots. Bay waters choppy. .TONIGHT...Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Bay waters choppy. A slight chance of showers and thunderstorms after midnight. .MONDAY...South winds 5 to 10 knots. Bay waters light chop. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms after midnight. .TUESDAY...Southeast winds 5 to 10 knots. Bay waters light chop. A chance of showers. A chance of thunderstorms, mainly in the morning. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. .WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters light chop. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. .THURSDAY...Southeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms. .THURSDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ450-202130- Coastal waters from Cameron LA to High Island TX out 20 NM- 350 AM CDT Sun Apr 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...Southeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 5 seconds. A slight chance of showers and thunderstorms this afternoon. .TONIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: South 3 feet at 6 seconds. A chance of showers and thunderstorms after midnight. .MONDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 7 seconds. A chance of showers and thunderstorms. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 8 seconds and southeast 1 foot at 3 seconds. A slight chance of showers and thunderstorms after midnight. .TUESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. A chance of showers. A chance of thunderstorms, mainly in the morning. .TUESDAY NIGHT...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds and southeast 1 foot at 7 seconds. A chance of showers and thunderstorms after midnight. .WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of thunderstorms. Showers likely, mainly in the morning. .WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. .THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms. .THURSDAY NIGHT...Southeast winds around 15 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$ GMZ452-202130- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 350 AM CDT Sun Apr 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...Southeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 5 seconds. .TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at 4 seconds and south 3 feet at 7 seconds. .MONDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 7 seconds. A slight chance of thunderstorms. A chance of showers, mainly in the morning. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 7 seconds. A slight chance of showers and thunderstorms after midnight. .TUESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 7 seconds. A chance of showers. A chance of thunderstorms, mainly in the morning. .TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds. A slight chance of showers and thunderstorms after midnight. .WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. .THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms. .THURSDAY NIGHT...Southeast winds around 15 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$ GMZ455-202130- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 350 AM CDT Sun Apr 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .TODAY...Southeast winds 15 to 20 knots, diminishing to 10 to 15 knots late. Seas 2 to 4 feet. Wave Detail: Southeast 2 feet at 3 seconds. .TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 3 seconds. .MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 8 seconds and south 1 foot at 2 seconds. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 8 seconds. A slight chance of showers and thunderstorms after midnight. .TUESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 2 seconds. A chance of showers. A chance of thunderstorms, mainly in the morning. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 2 seconds. .WEDNESDAY...Southeast winds around 10 knots. Seas around 2 feet. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas around 2 feet. .THURSDAY...Southeast winds 10 to 15 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$ GMZ470-202130- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 350 AM CDT Sun Apr 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 6 feet at 7 seconds. .TONIGHT...South winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 8 seconds. A slight chance of showers and thunderstorms after midnight. .MONDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 8 seconds. A slight chance of thunderstorms. A chance of showers, mainly in the morning. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 8 seconds. A slight chance of showers and thunderstorms after midnight. .TUESDAY...Southeast winds around 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 8 seconds. A chance of showers and thunderstorms, mainly in the morning. .TUESDAY NIGHT...Southeast winds around 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 7 seconds. A slight chance of showers and thunderstorms after midnight. .WEDNESDAY...Southeast winds around 10 knots. Seas 3 to 4 feet. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas 3 to 4 feet. .THURSDAY...Southeast winds around 10 knots, increasing to around 15 knots in the afternoon. Seas 3 to 4 feet. A slight chance of showers and thunderstorms. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Winds and seas higher in and near thunderstorms. $$ GMZ472-202130- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 350 AM CDT Sun Apr 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 6 feet at 7 seconds. .TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 8 seconds. .MONDAY...Southeast winds 5 to 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 8 seconds. A slight chance of thunderstorms. A chance of showers, mainly in the morning. .MONDAY NIGHT...Southeast winds around 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 8 seconds. A slight chance of showers and thunderstorms after midnight. .TUESDAY...Southeast winds around 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 8 seconds. A chance of showers and thunderstorms, mainly in the morning. .TUESDAY NIGHT...Southeast winds around 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 7 seconds. A slight chance of showers and thunderstorms after midnight. .WEDNESDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas 3 to 4 feet. .THURSDAY...Southeast winds around 10 knots, increasing to around 15 knots in the afternoon. Seas 3 to 4 feet. A slight chance of showers and thunderstorms. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet. Winds and seas higher in and near thunderstorms. $$ GMZ475-202130- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 350 AM CDT Sun Apr 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...Southeast winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Southeast 7 feet at 7 seconds. .TONIGHT...Southeast winds 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 5 feet at 8 seconds. .MONDAY...Southeast winds around 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 8 seconds. A slight chance of thunderstorms. A chance of showers, mainly in the morning. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 8 seconds. A slight chance of showers and thunderstorms after midnight. .TUESDAY...Southeast winds around 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 8 seconds. A slight chance of thunderstorms. A chance of showers, mainly in the morning. .TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 7 seconds. .WEDNESDAY...Southeast winds around 10 knots. Seas 3 to 4 feet. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. .THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of showers and thunderstorms in the morning. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Winds and seas higher in and near thunderstorms. $$