Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
162 FZUS54 KHGX 050131 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 731 PM CST Thu Dec 4 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. GMZ300-051430- 731 PM CST Thu Dec 4 2025 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. Gusty northerly winds around 20 knots with occasionally higher gusts will continue into tonight. Winds will decrease and veer northeast on Friday into Saturday. A reprieve from the shower activity is expected tonight, but scattered showers and isolated thunderstorms return Friday morning and continue into Friday night before exiting to the east Saturday morning. Light onshore winds develop late Saturday into Sunday morning before offshore winds begin again by sunrise Sunday. A dry cold front is expected to move through the coastal waters late Sunday bringing a period of moderate to strong north to northeasterly winds that continue into Monday morning. $$ GMZ335-051430- Galveston Bay- 731 PM CST Thu Dec 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT... .REST OF TONIGHT...North winds 15 to 20 knots with gusts up to 25 knots. Bay waters choppy. A slight chance of showers late this evening. A slight chance of showers late. .FRIDAY...North winds 10 to 15 knots, diminishing to around 10 knots in the afternoon. Bay waters slightly choppy, diminishing to smooth in the afternoon. A chance of showers. .FRIDAY NIGHT...Northeast winds around 5 knots, becoming north after midnight. Bay waters smooth. A chance of showers. .SATURDAY...Northeast winds around 5 knots, becoming southeast in the afternoon. Bay waters smooth. A chance of showers in the morning. .SATURDAY NIGHT...South winds around 5 knots. Bay waters smooth. .SUNDAY...Northwest winds 5 to 10 knots. Bay waters smooth. .SUNDAY NIGHT...North winds 15 to 20 knots. Bay waters choppy. .MONDAY...North winds 15 to 20 knots, diminishing to around 10 knots in the afternoon. Bay waters choppy, diminishing to smooth in the afternoon. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters smooth. .TUESDAY...East winds around 5 knots, becoming southeast in the afternoon. Bay waters smooth. .TUESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. $$ GMZ330-051430- Matagorda Bay- 731 PM CST Thu Dec 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT... .REST OF TONIGHT...North winds 15 to 20 knots with gusts up to 25 knots. Bay waters choppy. A slight chance of showers late. .FRIDAY...North winds 10 to 15 knots with gusts up to 20 knots, diminishing to around 10 knots in the afternoon. Bay waters slightly choppy, diminishing to smooth in the afternoon. A chance of showers. .FRIDAY NIGHT...North winds 5 to 10 knots. Bay waters smooth. A chance of showers. .SATURDAY...North winds 5 to 10 knots, becoming east in the afternoon. Bay waters smooth. .SATURDAY NIGHT...South winds around 5 knots, becoming southwest after midnight. Bay waters smooth. .SUNDAY...West winds around 10 knots, becoming northwest 10 to 15 knots with gusts up to 20 knots in the afternoon. Bay waters smooth, increasing to slightly choppy in the afternoon. .SUNDAY NIGHT...North winds 15 to 20 knots with gusts up to 25 knots. Bay waters choppy. .MONDAY...North winds 15 to 20 knots, diminishing to around 10 knots in the afternoon. Bay waters choppy, diminishing to smooth in the afternoon. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters smooth. .TUESDAY...Northeast winds 5 to 10 knots, becoming southeast in the afternoon. Bay waters smooth. .TUESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. $$ GMZ350-355-051430- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 731 PM CST Thu Dec 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM CST FRIDAY... .REST OF TONIGHT...North winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave Detail: Northeast 4 feet at 5 seconds. A slight chance of showers this evening. A chance of showers late. .FRIDAY...North winds 15 to 20 knots, diminishing to around 10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 5 seconds. Showers likely. .FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 5 seconds. Showers likely. .SATURDAY...North winds 5 to 10 knots, becoming east in the afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet at 5 seconds. A chance of showers in the morning. .SATURDAY NIGHT...Southeast winds around 5 knots, becoming southwest after midnight. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds and southwest 1 foot at 3 seconds. .SUNDAY...West winds around 10 knots, becoming northwest 10 to 15 knots in the afternoon. Seas around 2 feet. Wave Detail: West 2 feet at 3 seconds and east 2 feet at 5 seconds. .SUNDAY NIGHT...North winds around 20 knots, increasing to 20 to 25 knots after midnight. Seas 2 to 4 feet. .MONDAY...North winds 15 to 20 knots, becoming northeast around 15 knots in the afternoon. Seas 2 to 4 feet. .MONDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. .TUESDAY...Northeast winds 5 to 10 knots, becoming east in the afternoon. Seas around 2 feet in the morning, then 1 foot or less. .TUESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. $$ GMZ370-375-051430- 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- 731 PM CST Thu Dec 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM CST FRIDAY... .REST OF TONIGHT...North winds 20 to 25 knots with gusts up to 30 knots. Seas 4 to 5 feet. Wave Detail: North 5 feet at 5 seconds. A slight chance of thunderstorms. .FRIDAY...North winds 15 to 20 knots, becoming northeast around 15 knots in the afternoon. Seas 3 to 4 feet. Wave Detail: Northeast 4 feet at 6 seconds. Showers likely. .FRIDAY NIGHT...Northeast winds 10 to 15 knots, diminishing to around 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 5 seconds. Showers. .SATURDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 5 seconds. A chance of showers. .SATURDAY NIGHT...East winds 5 to 10 knots, becoming southwest after midnight. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds and west 1 foot at 2 seconds. .SUNDAY...Northwest winds around 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: West 2 feet at 3 seconds and east 2 feet at 5 seconds. .SUNDAY NIGHT...North winds around 20 knots, increasing to 20 to 25 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet. .MONDAY...North winds 15 to 20 knots, becoming northeast around 15 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. .MONDAY NIGHT...Northeast winds around 10 knots. Seas 2 to 3 feet. .TUESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. .TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming south after midnight. Seas around 2 feet. Winds and seas higher in and near thunderstorms. $$