Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
074 FZUS54 KHGX 241249 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 649 AM CST Mon Nov 24 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. GMZ300-250115- 649 AM CST Mon Nov 24 2025 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. Light to moderate south to southeast winds and seas of 3-5 feet today. The next weather system will move into Southeast Texas later today, with the tail end of some showers and isolated storms toward the coast late tonight into early Tuesday. Can not rule out an isolated strong storm in the Galveston Bay area between about 10pm and 5am. Rain chances start to taper off Tuesday depending on when the cold front moves off the coast. A secondary, stronger push of cool dry air will move into the waters late Tuesday night and early Wednesday morning. North winds should increase to 20 to 25 knots with gusts of around 30 knots as this occurs along with building seas. Small Craft Advisories will be required. Onshore winds resume and increase later in the week. $$ GMZ335-250115- Galveston Bay- 649 AM CST Mon Nov 24 2025 .TODAY...South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers until late afternoon. Isolated showers and thunderstorms. .TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots. Bay waters slightly choppy. A chance of showers and thunderstorms. Some thunderstorms may produce gusty winds. .TUESDAY...Southwest winds 5 to 10 knots, becoming west in the afternoon. Bay waters smooth. A chance of showers in the morning. .TUESDAY NIGHT...North winds around 10 knots, increasing to 15 to 20 knots after midnight. Bay waters smooth, increasing to choppy after midnight. .WEDNESDAY...North winds 15 to 20 knots with gusts up to 25 knots. Bay waters choppy. .WEDNESDAY NIGHT...Northeast winds around 15 knots with gusts up to 20 knots. Bay waters slightly choppy. .THURSDAY...Northeast winds 10 to 15 knots. Bay waters slightly choppy. .THURSDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly choppy. .FRIDAY...East winds 10 to 15 knots. Bay waters slightly choppy. .FRIDAY NIGHT...Southeast winds 15 to 20 knots. Bay waters choppy. Winds and waves higher in and near thunderstorms. $$ GMZ330-250115- Matagorda Bay- 649 AM CST Mon Nov 24 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT THROUGH THIS AFTERNOON... .TODAY...South winds 15 to 20 knots with gusts up to 25 knots. Bay waters choppy. Isolated showers and thunderstorms. .TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots. Bay waters slightly choppy. A chance of showers. Isolated thunderstorms after midnight. .TUESDAY...West winds 5 to 10 knots, becoming northeast in the afternoon. Bay waters smooth. .TUESDAY NIGHT...Northeast winds around 10 knots, increasing to 15 to 20 knots with gusts up to 25 knots after midnight. Bay waters smooth, increasing to choppy after midnight. .WEDNESDAY...North winds 15 to 20 knots with gusts up to 25 knots. Bay waters choppy. .WEDNESDAY NIGHT...Northeast winds around 15 knots with gusts up to 20 knots. Bay waters slightly choppy. .THURSDAY...Northeast winds 10 to 15 knots. Bay waters slightly choppy. .THURSDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly choppy. .FRIDAY...East winds around 15 knots, becoming southeast 15 to 20 knots in the afternoon. Bay waters slightly choppy, increasing to choppy in the afternoon. .FRIDAY NIGHT...Southeast winds 15 to 20 knots. Bay waters choppy. A chance of showers after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ355-250115- Coastal waters from High Island to Freeport TX out 20 NM- 649 AM CST Mon Nov 24 2025 .TODAY...South winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers and isolated thunderstorms. .TONIGHT...South winds 15 to 20 knots, becoming southwest around 15 knots after midnight. Seas 3 to 4 feet. Wave Detail: South 4 feet at 6 seconds. A chance of showers with isolated thunderstorms in the evening, then showers likely with isolated thunderstorms after midnight. Some thunderstorms may produce gusty winds after midnight. .TUESDAY...Southwest winds 10 to 15 knots, diminishing to around 10 knots in the afternoon. Seas 2 to 4 feet. Wave Detail: South 4 feet at 6 seconds. A chance of showers in the morning. .TUESDAY NIGHT...North winds around 15 knots, increasing to 15 to 20 knots with gusts up to 25 knots after midnight. Seas 2 to 3 feet, building to 3 to 5 feet after midnight. Wave Detail: South 2 feet at 6 seconds, becoming north 2 feet at 2 seconds and south 2 feet at 6 seconds. .WEDNESDAY...North winds 20 to 25 knots, diminishing to around 20 knots in the afternoon. Seas 4 to 5 feet. Wave Detail: Northeast 4 feet at 4 seconds and south 2 feet at 6 seconds. .WEDNESDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 5 seconds. .THURSDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet. .THURSDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet. .FRIDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. .FRIDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ375-250115- Waters from High Island to Freeport TX from 20 to 60 NM- 649 AM CST Mon Nov 24 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT THROUGH THIS AFTERNOON... .TODAY...South winds 15 to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 5 seconds and northeast 1 foot at 4 seconds. A chance of showers and isolated thunderstorms. .TONIGHT...South winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: South 5 feet at 6 seconds. A slight chance of showers with isolated thunderstorms in the evening, then a chance of showers with isolated thunderstorms after midnight. Some thunderstorms may produce gusty winds after midnight. .TUESDAY...Southwest winds 10 to 15 knots, diminishing to around 10 knots in the afternoon. Seas 3 to 4 feet. Wave Detail: South 4 feet at 6 seconds. A chance of showers. .TUESDAY NIGHT...Northeast winds around 15 knots, becoming north 15 to 20 knots with gusts up to 25 knots after midnight. Seas 3 to 5 feet. Wave Detail: Northeast 2 feet at 3 seconds and south 2 feet at 6 seconds. A chance of showers after midnight. .WEDNESDAY...Northeast winds 20 to 25 knots with gusts up to 30 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 6 seconds and southwest 1 foot at 5 seconds. .WEDNESDAY NIGHT...Northeast winds around 20 knots with gusts up to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northeast 5 feet at 6 seconds. .THURSDAY...Northeast winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. .THURSDAY NIGHT...East winds around 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. .FRIDAY...East winds 15 to 20 knots. Seas 5 to 6 feet, occasionally to 8 feet. .FRIDAY NIGHT...Southeast winds around 20 knots. Seas 5 to 8 feet, occasionally to 10 feet. A chance of showers after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ350-370-250115- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM- Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM- 649 AM CST Mon Nov 24 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT THROUGH THIS AFTERNOON... .TODAY...South winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet. Wave Detail: South 4 feet at 6 seconds. .TONIGHT...South winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: South 5 feet at 6 seconds. A slight chance of showers with isolated thunderstorms in the evening, then a chance of showers with isolated thunderstorms after midnight. Some thunderstorms may produce gusty winds after midnight. .TUESDAY...Southwest winds 10 to 15 knots, becoming west around 10 knots in the afternoon. Seas 3 to 4 feet. Wave Detail: South 4 feet at 6 seconds. A chance of showers in the morning. .TUESDAY NIGHT...Northeast winds around 15 knots, increasing to 15 to 20 knots with gusts up to 25 knots after midnight. Seas 2 to 3 feet, building to 3 to 5 feet after midnight. Wave Detail: Southeast 2 feet at 6 seconds, becoming northeast 3 feet at 4 seconds and south 2 feet at 6 seconds. A chance of showers after midnight. .WEDNESDAY...Northeast winds 20 to 25 knots with gusts up to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 6 seconds and south 1 foot at 5 seconds. .WEDNESDAY NIGHT...Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 6 seconds. .THURSDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. .THURSDAY NIGHT...East winds around 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. .FRIDAY...Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. .FRIDAY NIGHT...Southeast winds around 20 knots. Seas 5 to 8 feet, occasionally to 10 feet. A chance of showers after midnight. Winds and seas higher in and near thunderstorms. $$