Houston Galveston Texas Marine Forecast Interactive Clickable Zone Map
Marine forecast zone from the state of Texas Houston | Galveston NOAA office which include the Gulf of America, coastal waters, bays and offshore. Marine forecast areas included are Galveston Bay, High Island, Crystal Beach, Tiki Island, Jamaica Beach, Surfside Beach, Quintana, Freeport, Matagorda Bay, Port Bolivar and Bolivar Peninsula
Click any zone on the map below to retrieve forecast
Synopsis for High Island to the Matagorda Ship Channel out 60 nautical miles
Expires:202604190730;;595119 FZUS54 KHGX 181837 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 137 PM CDT Sat Apr 18 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. GMZ300-190730- 137 PM CDT Sat Apr 18 2026 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. Onshore flow around 15 to 20 knots will persist through early Saturday with 2-4ft seas. Persistent onshore flow has led to increased wave runup along beaches and water levels are expected to be near 3.0 feet above Mean Lower Low Water during high tide cycles over the next few days. A cold front with associated showers and storms are expected to push offshore Saturday evening into early Sunday. Hazardous marine conditions are expected Saturday evening into early Sunday afternoon due to the strong northeasterly winds and building seas developing behind the cold front. There will be a chance for gusts to gale in the Bays early Sunday morning with gale conditions antipated in the Gulf Waters. Winds will lower through the day on Sunday, but seas may remain elevated into Sunday night. $$ |
Coastal marine forecasts from NOAA National Weather Service. Marine forecasts are issued at least four times a day. Advisories, watches and warnings for marine areas are issued as required. Internet forecasts should never be relied upon to obtain the latest forecast and warning data. Use other means such as NOAA Weather Radio to obtain the latest forecasts and warnings.
State of Texas Houston | Galveston Office Zone Marine Forecast Text Links
- GMZ330 Matagorda Bay
- GMZ335 Galveston Bay
- GMZ350 Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM
- GMZ355 Coastal waters from High Island to Freeport TX out 20 NM
- GMZ370 Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM
- GMZ375 Waters from High Island to Freeport TX from 20 to 60 NM
For more Houston and Galveston marine forecast information visit the following office website: