Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
706 FZUS54 KHGX 081152 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 552 AM CST Sat Nov 8 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. GMZ300-090015- 552 AM CST Sat Nov 8 2025 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. After a stretch of tranquil marine conditions, a cold front is expected pass off the coast between 2am-6am Sunday. There will be some stronger onshore winds before the front, but particularly higher north winds and building seas after the front passes. Small Craft Advisory conditions are expected, along with at least some gusts to gale force. There is some potential for more widespread gale conditions on the Gulf between late Sunday morning and early Monday morning. A gale watch has been issued for this timeframe, and as confidence in just how strong the post-frontal winds are expected to be, it will be converted to either a small craft advisory or a gale warning accordingly. Another potential hazard behind the front is low water conditions late Sunday and Monday, which will also be impacted by the strength of the expected winds. $$ GMZ335-090015- Galveston Bay- 552 AM CST Sat Nov 8 2025 .TODAY...Southwest winds 5 to 10 knots. Bay waters smooth. .TONIGHT...Southwest winds around 10 knots, becoming north 20 to 25 knots after midnight. Bay waters smooth, increasing to rough after midnight. .SUNDAY...North winds 20 to 25 knots with gusts up to 30 knots. Bay waters rough. .SUNDAY NIGHT...North winds 20 to 25 knots with gusts up to 30 knots. Bay waters rough. .MONDAY...North winds 15 to 20 knots with gusts up to 25 knots, diminishing to around 15 knots in the afternoon. Bay waters choppy, diminishing to slightly choppy in the afternoon. .MONDAY NIGHT...North winds 5 to 10 knots, becoming east after midnight. Bay waters smooth. .TUESDAY...Southeast winds around 10 knots, becoming south 10 to 15 knots in the afternoon. Bay waters smooth, increasing to slightly choppy in the afternoon. .TUESDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly choppy. .WEDNESDAY...South winds 10 to 15 knots. Bay waters slightly choppy. .WEDNESDAY NIGHT...South winds around 10 knots. Bay waters smooth to slightly choppy. $$ GMZ330-090015- Matagorda Bay- 552 AM CST Sat Nov 8 2025 .TODAY...Southwest winds 5 to 10 knots, becoming south late. Bay waters smooth, increasing to smooth to slightly choppy late. .TONIGHT...South winds around 10 knots, becoming north 20 to 25 knots after midnight. Bay waters smooth, increasing to rough after midnight. .SUNDAY...North winds 20 to 25 knots with gusts up to 30 knots. Bay waters rough. .SUNDAY NIGHT...North winds around 30 knots. Bay waters very rough. .MONDAY...North winds 15 to 20 knots with gusts up to 30 knots, diminishing to around 15 knots with gusts up to 20 knots in the afternoon. Bay waters choppy, diminishing to slightly choppy in the afternoon. .MONDAY NIGHT...Northeast winds 5 to 10 knots, becoming east after midnight. Bay waters smooth. .TUESDAY...South winds 10 to 15 knots. Bay waters slightly choppy. .TUESDAY NIGHT...South winds 15 to 20 knots. Bay waters choppy. .WEDNESDAY...South winds 10 to 15 knots. Bay waters slightly choppy. .WEDNESDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly choppy. $$ GMZ350-355-090015- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 552 AM CST Sat Nov 8 2025 ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... .TODAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 6 seconds. .TONIGHT...South winds around 10 knots, becoming north 20 to 25 knots after midnight. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. .SUNDAY...North winds around 30 knots. Seas 3 to 5 feet, building to 5 to 8 feet, occasionally to 10 feet in the afternoon. Wave Detail: Northeast 5 feet at 4 seconds and south 2 feet at 5 seconds, becoming northeast 5 feet at 5 seconds. .SUNDAY NIGHT...North winds around 30 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail: Northeast 7 feet at 6 seconds. .MONDAY...North winds 20 to 25 knots with gusts up to 30 knots, diminishing to around 15 knots with gusts up to 20 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 2 to 4 feet in the afternoon. Wave Detail: Northeast 6 feet at 7 seconds, becoming northeast 4 feet at 7 seconds. .MONDAY NIGHT...Northeast winds 10 to 15 knots, becoming east around 10 knots after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 7 seconds. .TUESDAY...Southeast winds around 15 knots, becoming south 15 to 20 knots in the afternoon. Seas around 2 feet. .TUESDAY NIGHT...South winds 15 to 20 knots. Seas 2 to 4 feet. .WEDNESDAY...South winds 15 to 20 knots, diminishing to around 15 knots in the afternoon. Seas 3 to 4 feet. .WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. $$ GMZ370-375-090015- 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- 552 AM CST Sat Nov 8 2025 ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... .TODAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southwest 3 feet at 5 seconds and east 1 foot at 6 seconds. .TONIGHT...Southwest winds around 10 knots, becoming northwest 20 to 25 knots after midnight. Seas around 2 feet. Wave Detail: Southwest 2 feet at 5 seconds and southeast 1 foot at 6 seconds. A slight chance of showers after midnight. .SUNDAY...North winds around 30 knots. Seas 3 to 5 feet, building to 7 to 10 feet, occasionally to 13 feet in the afternoon. Wave Detail: Northeast 5 feet at 5 seconds and southwest 3 feet at 5 seconds, becoming north 8 feet at 6 seconds. .SUNDAY NIGHT...North winds around 30 knots with gusts up to 40 knots. Seas 7 to 10 feet, occasionally to 13 feet. Wave Detail: North 10 feet at 7 seconds. .MONDAY...North winds 20 to 25 knots with gusts up to 35 knots, diminishing to around 20 knots with gusts up to 25 knots in the afternoon. Seas 6 to 9 feet, occasionally to 11 feet, subsiding to 4 to 6 feet, occasionally to 8 feet in the afternoon. Wave Detail: Northeast 9 feet at 7 seconds, becoming northeast 6 feet at 7 seconds. .MONDAY NIGHT...Northeast winds 10 to 15 knots, becoming east after midnight. Seas 2 to 4 feet. Wave Detail: Northeast 4 feet at 7 seconds. .TUESDAY...South winds 10 to 15 knots. Seas around 2 feet. .TUESDAY NIGHT...South winds 15 to 20 knots. Seas 2 to 4 feet. .WEDNESDAY...South winds 15 to 20 knots. Seas 3 to 4 feet. .WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet. $$