Expires:202507171815;;576665 FZUS54 KHGX 170502 CWFHGX Coastal Waters Forecast for Texas National Weather Service Houston/Galveston TX 1202 AM CDT Thu Jul 17 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. GMZ300-171815- 1202 AM CDT Thu Jul 17 2025 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM including Galveston and Matagorda Bays. Onshore winds in the 5 to 15 knot range with occasionally higher gusts and 2 to 4 foot seas are in the forecast through the end of the week. Rain chances increase late Thursday into Friday as a disturbance approaches from the east. NHC continues to monitor this disturbance in the northeast and north central Gulf for some potential tropical development today into Friday. Mariners are advised to check the forecast for the updates due to uncertainties regarding the tropical disturbance. $$