Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
555 FZUS54 KHGX 011935 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 235 PM CDT Thu Oct 1 2026 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. GMZ300-020815- 235 PM CDT Thu Oct 1 2026 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. A tightening pressure gradient will lead to increasing southeast winds and building seas as we head into the middle and late parts of the work week. Isolated to scattered showers and thunderstorms are expected through tonight. Moderate to occasionally strong southeast winds early this morning will gradually diminish today...though seas should remain somewhat elevated throughout the day. Periods of unsettled weather are expected this weekend into early next week with coastal areas sandwiched between a weak, slow moving frontal boundary along the coast and a broad, elongated trough of low pressure stretching southward across the western Gulf. Northeast winds will increase and precipitation decrease as the front tracks further offshore. $$ GMZ335-020815- Galveston Bay- 235 PM CDT Thu Oct 1 2026 ...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT THROUGH FRIDAY MORNING... .THIS AFTERNOON...Southeast winds around 15 knots with gusts up to 20 knots. Bay waters slightly choppy. A chance of showers and thunderstorms. .TONIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots. Bay waters slightly choppy. A chance of showers with a slight chance of thunderstorms. .FRIDAY...East winds 5 to 10 knots. Bay waters smooth. A chance of showers. A chance of thunderstorms in the afternoon. .FRIDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters smooth. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SATURDAY...Northeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of thunderstorms. Showers. .SATURDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of thunderstorms. Showers. .SUNDAY...Northeast winds 15 to 20 knots, diminishing to around 15 knots in the afternoon. Bay waters choppy, diminishing to slightly choppy in the afternoon. A chance of thunderstorms. Showers. .SUNDAY NIGHT...Northeast winds around 15 knots, increasing to 15 to 20 knots after midnight. Bay waters slightly choppy, increasing to choppy after midnight. A chance of thunderstorms in the evening. A chance of showers. .MONDAY...Northeast winds 15 to 20 knots, diminishing to around 15 knots in the afternoon. Bay waters choppy, diminishing to slightly choppy in the afternoon. A chance of showers. .MONDAY NIGHT...Northeast winds around 15 knots, increasing to 15 to 20 knots after midnight. Bay waters slightly choppy, increasing to choppy after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ330-020815- Matagorda Bay- 235 PM CDT Thu Oct 1 2026 ...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT THROUGH FRIDAY MORNING... .THIS AFTERNOON...Southeast winds 15 to 20 knots. Bay waters choppy. A chance of showers and thunderstorms. .TONIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots. Bay waters slightly choppy. A chance of showers. A chance of thunderstorms, mainly in the evening. .FRIDAY...Southeast winds 10 to 15 knots, becoming east around 10 knots in the afternoon. Bay waters slightly choppy, diminishing to smooth in the afternoon. Showers likely with a chance of thunderstorms. .FRIDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers in the evening, then showers likely with a chance of thunderstorms after midnight. .SATURDAY...Northeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of thunderstorms. Showers. .SATURDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of thunderstorms. Showers. .SUNDAY...Northeast winds 15 to 20 knots. Bay waters choppy. Showers likely with a chance of thunderstorms in the morning, then showers with thunderstorms likely in the afternoon. .SUNDAY NIGHT...Northeast winds 15 to 20 knots. Bay waters choppy. A chance of showers and thunderstorms. .MONDAY...Northeast winds 15 to 20 knots. Bay waters choppy. A chance of showers and thunderstorms in the morning, then a chance of showers in the afternoon. .MONDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters slightly choppy. Winds and waves higher in and near thunderstorms. $$ GMZ350-355-020815- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 235 PM CDT Thu Oct 1 2026 ...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT THROUGH FRIDAY MORNING... .THIS AFTERNOON...Southeast winds 15 to 20 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 5 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms. .TONIGHT...Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 5 feet at 6 seconds. A slight chance of thunderstorms. A chance of showers, mainly in the evening. .FRIDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds. A chance of showers and thunderstorms. .FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SATURDAY...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 7 seconds. Showers with a chance of thunderstorms. .SATURDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 7 seconds. Showers with a chance of thunderstorms. .SUNDAY...Northeast winds 15 to 20 knots. Seas 3 to 4 feet. Showers with thunderstorms likely. .SUNDAY NIGHT...Northeast winds around 20 knots, increasing to 20 to 25 knots after midnight. Seas 3 to 5 feet. A chance of thunderstorms. Showers likely. .MONDAY...Northeast winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of thunderstorms in the morning. A chance of showers. .MONDAY NIGHT...Northeast winds around 20 knots, increasing to 20 to 25 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers. Winds and seas higher in and near thunderstorms. $$ GMZ370-375-020815- 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- 235 PM CDT Thu Oct 1 2026 ...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT THROUGH FRIDAY MORNING... .THIS AFTERNOON...Southeast winds 15 to 20 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: Southeast 5 feet at 6 seconds. A slight chance of showers and thunderstorms. .TONIGHT...Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 5 feet at 6 seconds. A slight chance of showers. .FRIDAY...East winds 10 to 15 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 4 feet at 7 seconds. A chance of showers. A chance of thunderstorms in the afternoon. .FRIDAY NIGHT...East winds 10 to 15 knots. Seas around 5 feet. Wave Detail: Southeast 4 feet at 7 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers after midnight. .SATURDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds. Showers with a chance of thunderstorms. .SATURDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 7 seconds. Showers with a chance of thunderstorms. .SUNDAY...Northeast winds around 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 4 to 5 feet. Showers with thunderstorms likely. .SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Showers with a chance of thunderstorms. .MONDAY...Northeast winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of thunderstorms. Showers. .MONDAY NIGHT...Northeast winds around 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Showers likely, mainly in the evening. Winds and seas higher in and near thunderstorms. $$