Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
341 FZUS54 KHGX 200559 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 1159 PM CST Wed Nov 19 2025 Upper Texas coastal waters from High Island to the Matagorda Ship Channel out 60 nautical miles including Galveston and Matagorda Bays. Seas are provided as a range of the average height of the highest 1/3 of the waves...along with the occasional height of the average highest 10 percent of the waves. GMZ300-201815- 1159 PM CST Wed Nov 19 2025 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. Light to moderate onshore flow should continue for the next several days with Gulf seas of 2 to 4 feet. Isolated to widely scattered showers are possible today. A weak front will move into Southeast Texas Thursday night...but is expected to stall inland Friday into Saturday. Scattered showers and thunderstorm chances are possible closer to the boundary. Late night and early morning fog inland may also bleed into the northern bays at times. Better chances of that occurring should be Friday night. Otherwise, southerly winds will increase Sunday as the stalled front dissipates. The next weather system will move into the area Monday night into Tuesday afternoon. $$ GMZ335-201815- Galveston Bay- 1159 PM CST Wed Nov 19 2025 .TONIGHT...Southeast winds 10 to 15 knots, diminishing to around 10 knots late. Bay waters slightly choppy, diminishing to smooth late. Patchy fog late. .THURSDAY...Southeast winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers in the morning, then a chance of showers in the afternoon. .THURSDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth. Patchy fog. .FRIDAY...South winds 5 to 10 knots. Bay waters smooth. A chance of showers. .FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. A chance of showers after midnight. Patchy fog. .SATURDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth. .SUNDAY...Southeast winds around 10 knots. Bay waters smooth to slightly choppy. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters slightly choppy. .MONDAY...South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers. .MONDAY NIGHT...South winds 10 to 15 knots, becoming west after midnight. Bay waters slightly choppy. Showers likely, mainly in the evening. $$ GMZ330-201815- Matagorda Bay- 1159 PM CST Wed Nov 19 2025 .TONIGHT...Southeast winds 10 to 15 knots. Bay waters slightly choppy. .THURSDAY...Southeast winds 10 to 15 knots with gusts up to 20 knots. Bay waters slightly choppy. .THURSDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly choppy. .FRIDAY...South winds around 10 knots. Bay waters smooth to slightly choppy. A chance of showers. .FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. A chance of showers after midnight. .SATURDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers. .SATURDAY NIGHT...Southeast winds around 10 knots. Bay waters smooth to slightly choppy. .SUNDAY...Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers in the morning. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers after midnight. .MONDAY...South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers. .MONDAY NIGHT...South winds 10 to 15 knots, becoming west after midnight. Bay waters slightly choppy, diminishing to smooth to slightly choppy after midnight. A chance of showers. $$ GMZ350-355-201815- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 1159 PM CST Wed Nov 19 2025 .TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. .THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers. .THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. .FRIDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. A chance of showers in the afternoon. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. A chance of showers after midnight. .SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. A chance of showers in the morning. .SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. .SUNDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet. .MONDAY...South winds around 15 knots. Seas 3 to 5 feet. A chance of showers. .MONDAY NIGHT...South winds around 15 knots, becoming west after midnight. Seas 3 to 5 feet. Showers likely, mainly in the evening. $$ GMZ370-375-201815- Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM-Waters from High Island to Freeport TX from 20 to 60 NM- 1159 PM CST Wed Nov 19 2025 .TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of showers late. .THURSDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of showers in the morning, then a chance of showers in the afternoon. .THURSDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: South 3 feet at 6 seconds. .FRIDAY...South winds around 10 knots. Seas 3 to 4 feet. Wave Detail: South 3 feet at 6 seconds. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. .SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. A chance of showers in the morning. .SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. .SUNDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 5 feet. .MONDAY...South winds around 15 knots. Seas 4 to 5 feet. A chance of showers. .MONDAY NIGHT...South winds around 15 knots, becoming southwest after midnight. Seas 4 to 5 feet. A chance of showers in the evening, then showers likely after midnight. $$