


Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
900 FZUS54 KHGX 050543 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 1243 AM CDT Sun Oct 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. GMZ300-051815- 1243 AM CDT Sun Oct 5 2025 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. Scattered showers and isolated thunderstorms will continue over the coastal waters through the weekend with the greatest coverage likely staying in the offshore waters. Small craft should exercise caution in the bays as easterly winds of 15 to 20 knots with choppy waters. A Small Craft Advisory has been issued for the Gulf waters this evening through early Sunday morning as frequent wind gusts to 25 knots are expected and locally higher seas of 6 to 8 feet are possible. Conditions are expected to improve Sunday afternoon into Monday, though small crafts will need to excercise caution. $$ GMZ335-051815- Galveston Bay- 1243 AM CDT Sun Oct 5 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT UNTIL 7 AM CDT THIS MORNING... .REST OF TONIGHT...East winds 15 to 20 knots. Bay waters choppy. .SUNDAY...Northeast winds 15 to 20 knots, becoming east around 15 knots in the afternoon. Bay waters choppy, diminishing to slightly choppy in the afternoon. .SUNDAY NIGHT...East winds around 10 knots. Bay waters smooth to slightly choppy. .MONDAY...Northeast winds 5 to 10 knots, becoming southeast in the afternoon. Bay waters smooth. A chance of showers. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth. .TUESDAY...East winds 5 to 10 knots. Bay waters smooth. .TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming northeast after midnight. Bay waters smooth. .WEDNESDAY...Northeast winds around 10 knots. Bay waters smooth to slightly choppy. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly choppy. .THURSDAY...Northeast winds 10 to 15 knots. Bay waters slightly choppy. .THURSDAY NIGHT...East winds around 10 knots. Bay waters smooth to slightly choppy. $$ GMZ330-051815- Matagorda Bay- 1243 AM CDT Sun Oct 5 2025 ...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT UNTIL 7 AM CDT THIS MORNING... .REST OF TONIGHT...Northeast winds around 15 knots. Bay waters slightly choppy. A slight chance of showers. .SUNDAY...Northeast winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers. .SUNDAY NIGHT...East winds 10 to 15 knots, diminishing to around 10 knots after midnight. Bay waters slightly choppy, diminishing to smooth after midnight. .MONDAY...Northeast winds 5 to 10 knots, becoming southeast in the afternoon. Bay waters smooth. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth. .TUESDAY...East winds 5 to 10 knots. Bay waters smooth. .TUESDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth. .WEDNESDAY...Northeast winds 10 to 15 knots. Bay waters slightly choppy. .WEDNESDAY NIGHT...East winds 10 to 15 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. $$ GMZ355-051815- Coastal waters from High Island to Freeport TX out 20 NM- 1243 AM CDT Sun Oct 5 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING... ...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT FROM 7 AM CDT THIS MORNING THROUGH THIS EVENING... .REST OF TONIGHT...East winds 20 to 25 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. A slight chance of showers late. .SUNDAY...Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. A chance of showers, mainly in the morning. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 6 seconds. A chance of showers after midnight. .MONDAY...East winds 5 to 10 knots, becoming southeast in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. .TUESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 1 foot at 5 seconds. .TUESDAY NIGHT...East winds around 10 knots. Seas around 2 feet. .WEDNESDAY...Northeast winds 10 to 15 knots. Seas around 2 feet. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers in the evening. .THURSDAY...Northeast winds 15 to 20 knots, becoming east around 15 knots in the afternoon. Seas 2 to 3 feet. .THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. $$ GMZ350-051815- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM- 1243 AM CDT Sun Oct 5 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING... ...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT FROM 7 AM CDT THIS MORNING THROUGH THIS EVENING... .REST OF TONIGHT...East winds around 20 knots with gusts up to 25 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. A slight chance of showers, then a chance of showers late. .SUNDAY...Northeast winds 15 to 20 knots, diminishing to around 15 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. A chance of showers. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at 7 seconds. A chance of showers after midnight. .MONDAY...East winds 5 to 10 knots, becoming southeast in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. .MONDAY NIGHT...Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 6 seconds. .TUESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 6 seconds. .TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet. .WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers in the morning. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas around 3 feet. A chance of showers. .THURSDAY...Northeast winds 15 to 20 knots. Seas 3 to 4 feet. A chance of showers. .THURSDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet. $$ GMZ375-051815- Waters from High Island to Freeport TX from 20 to 60 NM- 1243 AM CDT Sun Oct 5 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING... ...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT FROM 7 AM CDT THIS MORNING THROUGH THIS EVENING... .REST OF TONIGHT...East winds 20 to 25 knots, diminishing to around 20 knots late. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 7 seconds. A chance of showers. .SUNDAY...Northeast winds 15 to 20 knots, diminishing to around 15 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. A chance of showers. .SUNDAY NIGHT...East winds 10 to 15 knots, becoming southeast after midnight. Seas 3 to 4 feet. Wave Detail: East 4 feet at 6 seconds. A chance of showers. .MONDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. .TUESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 6 seconds. .TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet. A chance of showers after midnight. .WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers. .THURSDAY...Northeast winds 15 to 20 knots. Seas 3 to 4 feet. A chance of showers. .THURSDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet. $$ GMZ370-051815- Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM- 1243 AM CDT Sun Oct 5 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING... ...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT FROM 7 AM CDT THIS MORNING THROUGH THIS EVENING... .REST OF TONIGHT...East winds around 20 knots, becoming northeast around 20 knots late. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 6 feet at 7 seconds. A chance of showers. A slight chance of thunderstorms late. .SUNDAY...Northeast winds around 15 knots with gusts up to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. A chance of showers. A slight chance of thunderstorms in the afternoon. .SUNDAY NIGHT...East winds around 10 knots, becoming southeast after midnight. Seas 3 to 4 feet. Wave Detail: Northeast 4 feet at 6 seconds. A chance of showers after midnight. .MONDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. A chance of showers in the morning. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 6 seconds. .TUESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 7 seconds and northeast 1 foot at 4 seconds. A chance of showers. .TUESDAY NIGHT...East winds around 10 knots. Seas around 2 feet. A chance of showers after midnight. .WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers. .WEDNESDAY NIGHT...East winds around 15 knots. Seas 3 to 4 feet. A chance of showers. .THURSDAY...Northeast winds 15 to 20 knots. Seas around 4 feet. A chance of showers. .THURSDAY NIGHT...East winds around 15 knots. Seas 4 to 5 feet. Winds and seas higher in and near thunderstorms. $$