Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
464 FZUS54 KHGX 051200 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 600 AM CST Fri Dec 5 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. GMZ300-060015- 600 AM CST Fri Dec 5 2025 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. Gusty north to northeast winds should decrease this morning. Scattered shower activity is expected to continue intermittently through Saturday morning. Light onshore winds develop late Saturday into Sunday morning before a dry cold front bring offshore flow the region on Sunday. Patchy sea fog cannot be ruled out ahead of the front. Northerly winds will increase in the front`s wake, likely warranting Small Craft Advisories by Sunday night. Occasional gusts to gale force cannot be ruled out offshore in the open Gulf. $$ GMZ335-060015- Galveston Bay- 600 AM CST Fri Dec 5 2025 .TODAY...North winds 10 to 15 knots, diminishing to around 10 knots this afternoon. Bay waters smooth. A chance of showers. .TONIGHT...Northeast winds around 5 knots, becoming north after midnight. Bay waters smooth. A chance of showers. .SATURDAY...Northeast winds around 5 knots, becoming southeast in the afternoon. Bay waters smooth. .SATURDAY NIGHT...South winds around 5 knots. Bay waters smooth. .SUNDAY...West winds around 10 knots, becoming northwest 10 to 15 knots with gusts up to 20 knots in the afternoon. Bay waters smooth, increasing to slightly choppy in the afternoon. .SUNDAY NIGHT...North winds 15 to 20 knots with gusts up to 25 knots. Bay waters choppy. .MONDAY...North winds 15 to 20 knots, diminishing to around 10 knots in the afternoon. Bay waters choppy, diminishing to smooth in the afternoon. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters smooth. .TUESDAY...East winds 5 to 10 knots, becoming southeast in the afternoon. Bay waters smooth. .TUESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth. $$ GMZ330-060015- Matagorda Bay- 600 AM CST Fri Dec 5 2025 .TODAY...North winds 10 to 15 knots with gusts up to 20 knots, diminishing to around 10 knots this afternoon. Bay waters slightly choppy, diminishing to smooth this afternoon. Showers likely early this morning, then a chance of showers late this morning and afternoon. .TONIGHT...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...Northwest winds around 10 knots, increasing to 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 20 to 25 knots with gusts up to 30 knots. Bay waters rough. .MONDAY...North winds 15 to 20 knots, becoming northeast around 15 knots in the afternoon. Bay waters choppy, diminishing to slightly choppy 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. $$ GMZ350-355-060015- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 600 AM CST Fri Dec 5 2025 .TODAY...North winds 15 to 20 knots, diminishing to around 15 knots late this morning and afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 5 seconds and southeast 2 feet at 6 seconds. Showers likely, mainly this morning. .TONIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 6 seconds. A chance of showers. .SATURDAY...North winds 5 to 10 knots, becoming east in the afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet at 5 seconds and southeast 1 foot at 6 seconds. .SATURDAY NIGHT...Southeast winds around 5 knots, becoming southwest after midnight. Seas around 2 feet. Wave Detail: East 1 foot at 5 seconds. .SUNDAY...Northwest winds around 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Northwest 2 feet at 2 seconds and southeast 1 foot at 5 seconds. .SUNDAY NIGHT...North winds 20 to 25 knots with gusts up to 30 knots. Seas 3 to 5 feet. Wave Detail: North 4 feet at 4 seconds. .MONDAY...North winds 20 to 25 knots, becoming northeast around 20 knots in the afternoon. Seas 3 to 5 feet. .MONDAY NIGHT...Northeast winds around 10 knots. Seas 2 to 3 feet. .TUESDAY...Northeast winds 5 to 10 knots, becoming southeast in the afternoon. Seas around 2 feet. .TUESDAY NIGHT...South winds around 10 knots, increasing to 10 to 15 knots after midnight. Seas 2 to 4 feet. $$ GMZ370-375-060015- 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- 600 AM CST Fri Dec 5 2025 .TODAY...North winds 15 to 20 knots, becoming northeast around 15 knots this afternoon. Seas 3 to 4 feet. Wave Detail: Northeast 4 feet at 5 seconds and south 2 feet at 6 seconds. A chance of showers. .TONIGHT...Northeast winds 10 to 15 knots, diminishing to around 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. A chance of showers in the evening, then showers likely after midnight. .SATURDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 6 seconds. A chance of showers in the morning. .SATURDAY NIGHT...East winds 5 to 10 knots, becoming southwest after midnight. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. .SUNDAY...Northwest winds around 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Northwest 2 feet at 3 seconds and southeast 2 feet at 5 seconds. .SUNDAY NIGHT...North winds 20 to 25 knots with gusts up to 30 knots. Seas 3 to 5 feet, building to 6 to 7 feet, occasionally to 9 feet after midnight. Wave Detail: North 5 feet at 5 seconds and southeast 1 foot at 5 seconds, becoming north 6 feet at 6 seconds. .MONDAY...North winds 20 to 25 knots, becoming northeast around 20 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. .MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet. .TUESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. .TUESDAY NIGHT...South winds around 10 knots, increasing to 10 to 15 knots after midnight. Seas 2 to 4 feet. $$