


Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
550 FZUS54 KHGX 100005 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 705 PM CDT Thu Oct 9 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. GMZ300-101230- 705 PM CDT Thu Oct 9 2025 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. East and northeast winds have diminished into the 10 to 15 knot range this evening, but like last night, are expected to pick back up fairly quickly around midnight and back up to near 20 knots with some higher gusts into to mid morning hours Friday. Further offshore, speeds in the 15 to 25 knot range should prevail overnight. Water levels will also be running above normal due to the winds, seas, and moon phase. Marine conditions will gradually improve late Friday through the weekend. A more predominant onshore flow resumes Saturday evening and Sunday. $$ GMZ335-101230- Galveston Bay- 705 PM CDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT FRIDAY THROUGH FRIDAY MORNING... .TONIGHT...East winds 10 to 15 knots this evening increasing to near 20 knots with some higher gusts around or shortly after midnight. Bay waters choppy. .FRIDAY...Northeast winds 20 knots early in the morning, diminishing to 10 to 15 knots in the afternoon. Bay waters choppy, diminishing to slightly choppy in the afternoon. .FRIDAY NIGHT...Northeast winds around 10 knots. Bay waters smooth to slightly choppy. .SATURDAY...East winds 5 to 10 knots. Bay waters smooth. .SATURDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to around 5 knots after midnight. Bay waters slightly choppy, diminishing to smooth after midnight. .SUNDAY...Southeast winds 5 to 10 knots. Bay waters smooth. .SUNDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly choppy. .MONDAY...Southeast winds 5 to 10 knots. Bay waters smooth. .MONDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters slightly choppy. .TUESDAY...East winds 10 to 15 knots. Bay waters slightly choppy. .TUESDAY NIGHT...Southeast winds 10 to 15 knots, becoming west around 5 knots after midnight. Bay waters slightly choppy, diminishing to smooth after midnight. $$ GMZ355-101230- Coastal waters from High Island to Freeport TX out 20 NM- 705 PM CDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON... .TONIGHT...East winds increasing to 15 to 25 knots. Seas 3 to 5 feet. Wave Detail: East 4 feet at 6 seconds. .FRIDAY...Northeast winds 15 to 25 knots early in the morning, diminishing to around 15 knots in the afternoon. Seas 3 to 5 feet. .FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 6 seconds. .SATURDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 7 seconds. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 7 seconds. .SUNDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 7 seconds. .SUNDAY NIGHT...Southeast winds around 10 knots. Seas around 2 feet. .MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. .MONDAY NIGHT...Southeast winds around 10 knots. Seas around 2 feet. .TUESDAY...East winds around 10 knots. Seas around 2 feet. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. $$ GMZ375-101230- Waters from High Island to Freeport TX from 20 to 60 NM- 705 PM CDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON... .TONIGHT...Northeast winds increasing to 15 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 5 feet at 7 seconds. .FRIDAY...Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds. .FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 7 seconds. .SATURDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet. Wave Detail: East 3 feet at 8 seconds. .SUNDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds. .SUNDAY NIGHT...Southeast winds around 10 knots. Seas around 2 feet. .MONDAY...Southeast winds around 10 knots. Seas around 2 feet. .MONDAY NIGHT...East winds around 10 knots. Seas around 2 feet. .TUESDAY...East winds around 10 knots. Seas around 2 feet. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. $$ GMZ330-101230- Matagorda Bay- 705 PM CDT Thu Oct 9 2025 ...Small Craft should Exercise Caution... .TONIGHT...East winds 15 to 20 knots in the southern bay, and 10 to 15 knots northern bay. Bay waters choppy, diminishing to slightly choppy late this evening and overnight. .FRIDAY...Northeast winds 15 to 20 knots diminishing to 10 to 15 knots in the afternoon. Bay waters choppy becoming slightly choppy. .FRIDAY NIGHT...Northeast winds around 10 knots. Bay waters smooth to slightly choppy. .SATURDAY...Northeast winds around 10 knots, becoming east in the afternoon. Bay waters smooth to slightly choppy, diminishing to smooth in the afternoon. .SATURDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to around 10 knots after midnight. Bay waters slightly choppy, diminishing to smooth after midnight. .SUNDAY...Southeast winds 5 to 10 knots. Bay waters smooth. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters slightly choppy. .MONDAY...Southeast winds 5 to 10 knots. Bay waters smooth. .MONDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters slightly choppy. .TUESDAY...East winds 10 to 15 knots. Bay waters slightly choppy. .TUESDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to around 10 knots after midnight. Bay waters slightly choppy, diminishing to smooth after midnight. $$ GMZ350-101230- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM- 705 PM CDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON... .TONIGHT...East winds 15 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 5 feet at 7 seconds. .FRIDAY...Northeast winds 15 to 20 knots, diminishing to around 15 knots in the afternoon. Seas 3 to 5 feet. Wave Detail: Southeast 5 feet at 7 seconds. .FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds. .SATURDAY...Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 7 seconds. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 7 seconds. .SUNDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds. .SUNDAY NIGHT...Southeast winds around 10 knots. Seas 2 to 3 feet. .MONDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. .TUESDAY...East winds around 10 knots. Seas around 2 feet. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. $$ GMZ370-101230- Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM- 705 PM CDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON... .TONIGHT...East winds 15 to 25 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 5 feet at 7 seconds. .FRIDAY...Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southeast 5 feet at 7 seconds. .FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 5 feet. Wave Detail: Southeast 4 feet at 7 seconds. .SATURDAY...Northeast winds around 10 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 7 seconds. .SATURDAY NIGHT...East winds around 10 knots. Seas 3 to 4 feet. Wave Detail: East 3 feet at 8 seconds. .SUNDAY...Southeast winds around 10 knots. Seas around 3 feet. Wave Detail: East 3 feet at 8 seconds. .SUNDAY NIGHT...Southeast winds around 10 knots. Seas 2 to 3 feet. .MONDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. .MONDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet. .TUESDAY...East winds around 10 knots. Seas 2 to 3 feet. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. $$