Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
740 FZUS54 KHGX 110606 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 1206 AM CST Thu Dec 11 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. GMZ300-111915- 1206 AM CST Thu Dec 11 2025 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. Light offshore winds continue early today, but should shift onshore this afternoon with moisture and rain chances rising into Friday. Will have to keep an eye out for sea fog across the nearshore waters and bays beginning on Friday morning at the absolute earliest. Friday night into Saturday morning is the current time frame where sea fog conditions are most optimal, though water temperatures warming just a tad could inhibit sea fog development. If water temperatures are very slow to recover, the worst of the sea fog may extend through Saturday night into Sunday ahead of an approaching cold front. Small Craft Advisories are likely on Sunday behind the front. $$ GMZ335-111915- Galveston Bay- 1206 AM CST Thu Dec 11 2025 .TODAY...Northeast winds 5 to 10 knots, becoming southeast this afternoon. Bay waters smooth. .TONIGHT...South winds around 5 knots. Bay waters smooth. Patchy fog after midnight. .FRIDAY...West winds around 5 knots, becoming south in the afternoon. Bay waters smooth. Patchy fog in the morning. .FRIDAY NIGHT...Southeast winds around 5 knots. Bay waters smooth. Patchy fog in the evening. Areas of fog after midnight. .SATURDAY...Southeast winds 5 to 10 knots. Bay waters smooth. Areas of fog in the morning. A chance of showers. .SATURDAY NIGHT...Southeast winds around 5 knots, becoming northeast after midnight. Bay waters smooth. Areas of fog. A chance of showers after midnight. .SUNDAY...Northeast winds 15 to 20 knots. Bay waters choppy. Patchy fog in the morning. .SUNDAY NIGHT...Northeast winds 15 to 20 knots. Bay waters choppy. .MONDAY...Northeast winds 10 to 15 knots, becoming east around 10 knots in the afternoon. Bay waters slightly choppy, diminishing to smooth in the afternoon. .MONDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth. $$ GMZ330-111915- Matagorda Bay- 1206 AM CST Thu Dec 11 2025 .TODAY...Northeast winds 10 to 15 knots, becoming east around 10 knots late this morning and early afternoon, then becoming southeast late. Bay waters slightly choppy, diminishing to smooth late this morning and afternoon. .TONIGHT...Southeast winds around 5 knots, becoming south after midnight. Bay waters smooth. Patchy fog after midnight. .FRIDAY...Southwest winds around 5 knots, becoming south in the afternoon. Bay waters smooth. Patchy fog in the morning. .FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth. Patchy fog. .SATURDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers in the morning. Patchy fog in the morning. .SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming northeast after midnight. Bay waters smooth. Patchy fog. A chance of showers after midnight. .SUNDAY...Northeast winds 15 to 20 knots. Bay waters choppy. Patchy fog in the morning. .SUNDAY NIGHT...Northeast winds 15 to 20 knots. Bay waters choppy. .MONDAY...Northeast winds 10 to 15 knots. Bay waters slightly choppy. .MONDAY NIGHT...East winds around 10 knots. Bay waters smooth to slightly choppy. $$ GMZ350-355-111915- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 1206 AM CST Thu Dec 11 2025 .TODAY...Northeast winds 10 to 15 knots with gusts up to 20 knots, becoming east around 10 knots this afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. .TONIGHT...Southeast winds 5 to 10 knots, becoming south after midnight. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds and south 1 foot at 3 seconds. Patchy fog after midnight. .FRIDAY...Southwest winds 5 to 10 knots, becoming southeast in the afternoon. Seas around 2 feet. Wave Detail: South 1 foot at 4 seconds and east 1 foot at 5 seconds. Patchy fog in the morning. .FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Patchy fog. A chance of showers after midnight. .SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Patchy fog in the morning. A chance of showers. .SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming northeast after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Patchy fog. A chance of showers and thunderstorms after midnight. .SUNDAY...Northeast winds around 20 knots, increasing to 20 to 25 knots in the afternoon. Seas 3 to 5 feet. A chance of showers in the morning. Patchy fog in the morning. .SUNDAY NIGHT...Northeast winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. .MONDAY...Northeast winds 15 to 20 knots, becoming east around 15 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet. Winds and seas higher in and near thunderstorms. $$ GMZ370-375-111915- 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- 1206 AM CST Thu Dec 11 2025 .TODAY...Northeast winds 10 to 15 knots with gusts up to 20 knots, becoming east around 10 knots this afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 5 seconds and southwest 1 foot at 4 seconds. .TONIGHT...Southeast winds around 10 knots, becoming south 10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds and east 2 feet at 5 seconds. .FRIDAY...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 4 seconds and east 1 foot at 5 seconds. A chance of showers in the afternoon. .FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of showers and thunderstorms after midnight. .SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of thunderstorms in the morning. A chance of showers. .SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming east after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of showers and thunderstorms after midnight. .SUNDAY...Northeast winds around 20 knots, increasing to 20 to 25 knots in the afternoon. Seas 2 to 4 feet, building to 5 to 7 feet, occasionally to 9 feet in the afternoon. A chance of showers in the morning. .SUNDAY NIGHT...Northeast winds 20 to 25 knots. Seas 6 to 8 feet, occasionally to 10 feet. .MONDAY...Northeast winds 15 to 20 knots, diminishing to around 15 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet. Winds and seas higher in and near thunderstorms. $$