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Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
717 FZUS54 KHGX 141012 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 512 AM CDT Fri Jun 14 2024 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. GMZ300-142245- Synopsis for High Island to the Matagorda Ship Channel out 60 nautical miles including Galveston and Matagorda Bays 512 AM CDT Fri Jun 14 2024 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. Light to moderate onshore winds and low seas will prevail through early Sunday. By Sunday afternoon, onshore winds and seas will begin to gradually build as the gradient steepens between a developing low pressure system over the Bay of Campeche and an area of high pressure over the eastern United States. Small Craft Advisory conditions are possible starting as early as Monday and continuing until as late as the end of the week. By the middle of the week, seas could build to 7-10 feet with sustained winds offshore averaging around 25 knots with gusts over 30 knots. For now, our forecast keeps conditions under gale criteria. But we cannot rule out gale conditions, or at least gusts to gale force, by the middle of the week across the Gulf waters. There will also be a daily risk of showers and thunderstorms. Rain and thunderstorms could be heavy at times during the Sunday to Thursday time frame. Mariners are advised to monitor the aforementioned low pressure system. The National Hurricane Center currently estimates that the system has a 40 percent chance of becoming a tropical depression by the middle of next week. Stronger winds and building seas will remain likely even if the system does not develop. $$ GMZ335-142245- Galveston Bay- 512 AM CDT Fri Jun 14 2024 .TODAY...Northeast winds around 5 knots, veering to southeast late. Bay waters smooth. .TONIGHT...South winds 5 to 10 knots, easing to around 5 knots late. Bay waters smooth. .SATURDAY...Northeast winds around 5 knots, veering to southeast in the afternoon. Bay waters smooth. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth. .SUNDAY...Southeast winds around 10 knots, rising to 10 to 15 knots in the afternoon. Bay waters smooth, rising to slightly choppy in the afternoon. A chance of showers. A chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and thunderstorms after midnight. .MONDAY...Southeast winds 10 to 15 knots. Bay waters slightly choppy. Showers. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .MONDAY NIGHT...Southeast winds around 15 knots. Bay waters slightly choppy to choppy. A chance of showers and thunderstorms. .TUESDAY...Southeast winds around 15 knots. Bay waters slightly choppy to choppy. Showers likely with a chance of thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .TUESDAY NIGHT...East winds 15 to 20 knots. Bay waters choppy. A chance of thunderstorms. A chance of showers. $$ GMZ330-142245- Matagorda Bay- 512 AM CDT Fri Jun 14 2024 .TODAY...East winds 5 to 10 knots. Bay waters smooth. .TONIGHT...Southeast winds 5 to 10 knots. Bay waters smooth. .SATURDAY...East winds around 10 knots, becoming southeast 10 to 15 knots late. Bay waters smooth, rising to slightly choppy late. .SATURDAY NIGHT...Southeast winds 10 to 15 knots, easing to around 10 knots late. Bay waters slightly choppy, easing to smooth late. .SUNDAY...Southeast winds around 10 knots, rising to 10 to 15 knots in the afternoon. Bay waters smooth, rising to slightly choppy in the afternoon. A chance of showers. A chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and thunderstorms after midnight. .MONDAY...Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of thunderstorms. Showers. .MONDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and thunderstorms. .TUESDAY...Southeast winds around 15 knots, becoming east 15 to 20 knots in the afternoon. Bay waters slightly choppy, rising to choppy in the afternoon. A chance of thunderstorms. A chance of showers. .TUESDAY NIGHT...East winds 15 to 20 knots. Bay waters choppy. A chance of thunderstorms. A chance of showers. $$ GMZ350-355-142245- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 512 AM CDT Fri Jun 14 2024 .TODAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds and southeast 1 foot at 7 seconds. .TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 2 feet at 4 seconds. .SATURDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 2 feet at 5 seconds. .SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 1 foot or less. Wave Detail: Southeast 2 feet at 4 seconds. .SUNDAY...Southeast winds 10 to 15 knots. Seas 1 foot or less, then around 3 feet in the afternoon. Wave Detail: Southeast 2 feet at 4 seconds, becoming east 3 feet at 5 seconds. A chance of showers. A chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .MONDAY...Southeast winds 15 to 20 knots. Seas 3 to 5 feet. Showers. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .MONDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers and thunderstorms. .TUESDAY...East winds 15 to 20 knots. Seas 3 to 5 feet. Showers likely with a chance of thunderstorms. .TUESDAY NIGHT...East winds 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of thunderstorms. A chance of showers. $$ GMZ370-375-142245- 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- 512 AM CDT Fri Jun 14 2024 .TODAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds and southeast 1 foot at 7 seconds. .TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 2 feet at 4 seconds and southeast 1 foot at 7 seconds. .SATURDAY...East winds around 10 knots, rising to 10 to 15 knots late. Seas 1 foot or less. Wave Detail: East 2 feet at 4 seconds and southeast 2 feet at 7 seconds. .SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 1 foot or less, then around 3 feet after midnight. Wave Detail: East 2 feet at 5 seconds, becoming southeast 3 feet at 4 seconds. .SUNDAY...Southeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 4 seconds. Showers likely with a chance of thunderstorms. .SUNDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave Detail: Southeast 5 feet at 6 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .MONDAY...Southeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Showers with a chance of thunderstorms. .MONDAY NIGHT...Southeast winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .TUESDAY...East winds 15 to 20 knots. Seas 6 to 7 feet, occasionally to 9 feet. A chance of thunderstorms. Showers likely. .TUESDAY NIGHT...East winds 20 to 25 knots. Seas 6 to 9 feet, occasionally to 11 feet. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. $$