Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
161 FZUS54 KHGX 151055 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 455 AM CST Sat Nov 15 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. GMZ300-152315- 455 AM CST Sat Nov 15 2025 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. Light to occasionally moderate onshore flow and low seas will prevail through the remainder of the week. As patchy fog develops inland for the next couple of nights, some of that fog may drift across the upper portions of the Bays during the late night to early morning hours. Into next week, potential for fog may increase. Slim rain chances are expected through Tuesday. $$ GMZ335-152315- Galveston Bay- 455 AM CST Sat Nov 15 2025 .TODAY...South winds 5 to 10 knots. Bay waters smooth. Patchy fog early this morning. .TONIGHT...South winds 5 to 10 knots. Bay waters smooth. Patchy fog after midnight. .SUNDAY...South winds 5 to 10 knots. Bay waters smooth. Patchy fog in the morning. .SUNDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. Patchy fog. .MONDAY...South winds around 10 knots, increasing to 10 to 15 knots in the afternoon. Bay waters smooth, increasing to slightly choppy in the afternoon. Patchy fog in the morning. .MONDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly choppy. .TUESDAY...South winds 5 to 10 knots. Bay waters smooth. .TUESDAY NIGHT...Southeast winds around 10 knots. Bay waters smooth to slightly choppy. .WEDNESDAY...Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers in the afternoon. .WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Bay waters choppy. A chance of showers. $$ GMZ330-152315- Matagorda Bay- 455 AM CST Sat Nov 15 2025 .TODAY...South winds 5 to 10 knots. Bay waters smooth. Patchy fog early this morning. .TONIGHT...South winds around 10 knots. Bay waters smooth to slightly choppy. Patchy fog after midnight. .SUNDAY...South winds 5 to 10 knots. Bay waters smooth. Patchy fog in the morning. .SUNDAY NIGHT...South winds around 10 knots. Bay waters smooth to slightly choppy. Patchy fog after midnight. .MONDAY...South winds 10 to 15 knots. Bay waters slightly choppy. Patchy fog in the morning. .MONDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters slightly choppy. .TUESDAY...Southeast winds 10 to 15 knots. Bay waters slightly choppy. .TUESDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters slightly choppy. .WEDNESDAY...Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers. .WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Bay waters choppy. A chance of showers. $$ GMZ350-355-152315- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 455 AM CST Sat Nov 15 2025 .TODAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. .TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. .SUNDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. .SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. .MONDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. .MONDAY NIGHT...South winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. .TUESDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. .TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. .WEDNESDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet. A chance of showers in the afternoon. .WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers. $$ GMZ370-375-152315- 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- 455 AM CST Sat Nov 15 2025 .TODAY...South winds 10 to 15 knots, diminishing to around 10 knots this afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds and southeast 2 feet at 7 seconds. .TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. .SUNDAY...Southwest winds 10 to 15 knots, becoming south around 10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. .SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. .MONDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. .MONDAY NIGHT...South winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. .TUESDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. .TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. .WEDNESDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. .WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers. $$