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Home Return to list Small Craft Advisory 0070 Issued by the Houston / Galveston Forecast Office
Action: New Issued At: 2025-12-18 03:42:04 264 WHUS74 KHGX 180940 MWWHGX URGENT - MARINE WEATHER MESSAGE National Weather Service Houston/Galveston TX 340 AM CST Thu Dec 18 2025 GMZ350-355-181745- /O.CON.KHGX.MF.Y.0039.000000T0000Z-251218T1600Z/ /O.NEW.KHGX.SC.Y.0070.251219T0300Z-251219T1400Z/ Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 340 AM CST Thu Dec 18 2025 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM CST THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 8 AM CST FRIDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 2 to 3 NM. For the Small Craft Advisory, northeast winds 20 to 25 kt with gusts of 25 to 30 kt expected. * WHERE...Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM and Coastal waters from High Island to Freeport TX out 20 NM. * WHEN...For the Dense Fog Advisory, until 10 AM CST this morning. For the Small Craft Advisory, from 9 PM this evening to 8 AM CST Friday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. * ADDITIONAL DETAILS...The best potential for dense fog will be over the bays, particularly Galveston Bay, as well as very near shore on the Gulf. Potential for dense fog will decrease farther from shore, though patchy fog may still be experienced. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ GMZ370-375-181745- /O.NEW.KHGX.SC.Y.0070.251219T0300Z-251219T1400Z/ Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM-Waters from High Island to Freeport TX from 20 to 60 NM- 340 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 8 AM CST FRIDAY... * WHAT...Northeast winds 20 to 25 kt with gusts up to 30 kt and seas 4 to 7 ft expected. * WHERE...Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM and Waters from High Island to Freeport TX from 20 to 60 NM. * WHEN...From 9 PM this evening to 8 AM CST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ GMZ330-335-181600- /O.CON.KHGX.MF.Y.0039.000000T0000Z-251218T1600Z/ Matagorda Bay-Galveston Bay- 340 AM CST Thu Dec 18 2025 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM CST THIS MORNING... * WHAT...Dense fog will reduce visibility to 1 NM or less. * WHERE...Portions of Gulf of America. * WHEN...Until 10 AM CST Thursday. * IMPACTS...Low visibility will make navigation difficult. * ADDITIONAL DETAILS...The best potential for dense fog will be over the bays, particularly Galveston Bay, as well as very near shore on the Gulf. Potential for dense fog will decrease farther from shore, though patchy fog may still be experienced. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ Action: New Issued At: 2025-12-18 03:42:04 264 WHUS74 KHGX 180940 MWWHGX URGENT - MARINE WEATHER MESSAGE National Weather Service Houston/Galveston TX 340 AM CST Thu Dec 18 2025 GMZ350-355-181745- /O.CON.KHGX.MF.Y.0039.000000T0000Z-251218T1600Z/ /O.NEW.KHGX.SC.Y.0070.251219T0300Z-251219T1400Z/ Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 340 AM CST Thu Dec 18 2025 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM CST THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 8 AM CST FRIDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 2 to 3 NM. For the Small Craft Advisory, northeast winds 20 to 25 kt with gusts of 25 to 30 kt expected. * WHERE...Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM and Coastal waters from High Island to Freeport TX out 20 NM. * WHEN...For the Dense Fog Advisory, until 10 AM CST this morning. For the Small Craft Advisory, from 9 PM this evening to 8 AM CST Friday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. * ADDITIONAL DETAILS...The best potential for dense fog will be over the bays, particularly Galveston Bay, as well as very near shore on the Gulf. Potential for dense fog will decrease farther from shore, though patchy fog may still be experienced. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ GMZ370-375-181745- /O.NEW.KHGX.SC.Y.0070.251219T0300Z-251219T1400Z/ 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- 340 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 8 AM CST FRIDAY... * WHAT...Northeast winds 20 to 25 kt with gusts up to 30 kt and seas 4 to 7 ft expected. * WHERE...Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM and Waters from High Island to Freeport TX from 20 to 60 NM. * WHEN...From 9 PM this evening to 8 AM CST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ GMZ330-335-181600- /O.CON.KHGX.MF.Y.0039.000000T0000Z-251218T1600Z/ Matagorda Bay-Galveston Bay- 340 AM CST Thu Dec 18 2025 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM CST THIS MORNING... * WHAT...Dense fog will reduce visibility to 1 NM or less. * WHERE...Portions of Gulf of America. * WHEN...Until 10 AM CST Thursday. * IMPACTS...Low visibility will make navigation difficult. * ADDITIONAL DETAILS...The best potential for dense fog will be over the bays, particularly Galveston Bay, as well as very near shore on the Gulf. Potential for dense fog will decrease farther from shore, though patchy fog may still be experienced. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ Action: Continued Issued At: 2025-12-18 11:34:47 330 WHUS74 KHGX 181734 MWWHGX URGENT - MARINE WEATHER MESSAGE National Weather Service Houston/Galveston TX 1134 AM CST Thu Dec 18 2025 GMZ330-190145- /O.EXA.KHGX.SC.Y.0070.251219T0300Z-251219T1400Z/ Matagorda Bay- 1134 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 8 AM CST FRIDAY... * WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and rough bay waters expected. * WHERE...Matagorda Bay. * WHEN...From 9 PM this evening to 8 AM CST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ GMZ350-355-370-375-190145- /O.CON.KHGX.SC.Y.0070.251219T0300Z-251219T1400Z/ Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM-Waters from High Island to Freeport TX from 20 to 60 NM- 1134 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 8 AM CST FRIDAY... * WHAT...North winds 15 to 25 kt with occasional gusts up to 35 kt and seas 4 to 7 ft expected. * WHERE...Portions of Gulf of America. * WHEN...From 9 PM this evening to 8 AM CST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Area Extended Issued At: 2025-12-18 11:34:47 330 WHUS74 KHGX 181734 MWWHGX URGENT - MARINE WEATHER MESSAGE National Weather Service Houston/Galveston TX 1134 AM CST Thu Dec 18 2025 GMZ330-190145- /O.EXA.KHGX.SC.Y.0070.251219T0300Z-251219T1400Z/ Matagorda Bay- 1134 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 8 AM CST FRIDAY... * WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and rough bay waters expected. * WHERE...Matagorda Bay. * WHEN...From 9 PM this evening to 8 AM CST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ GMZ350-355-370-375-190145- /O.CON.KHGX.SC.Y.0070.251219T0300Z-251219T1400Z/ Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM-Waters from High Island to Freeport TX from 20 to 60 NM- 1134 AM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 8 AM CST FRIDAY... * WHAT...North winds 15 to 25 kt with occasional gusts up to 35 kt and seas 4 to 7 ft expected. * WHERE...Portions of Gulf of America. * WHEN...From 9 PM this evening to 8 AM CST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2025-12-18 23:04:35 897 WHUS74 KHGX 190504 MWWHGX URGENT - MARINE WEATHER MESSAGE National Weather Service Houston/Galveston TX 1104 PM CST Thu Dec 18 2025 GMZ330-350-355-370-375-191315- /O.CON.KHGX.SC.Y.0070.000000T0000Z-251219T1400Z/ Matagorda Bay- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 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- 1104 PM CST Thu Dec 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM CST FRIDAY... * WHAT...Northeast winds 20 to 25 kt with gusts up to 35 kt and seas 4 to 7 ft. Rough waters on Matagorda Bay. * WHERE...Portions of Gulf of America. * WHEN...Until 8 AM CST Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Cancelled Issued At: 2025-12-19 06:50:39 976 WHUS74 KHGX 191250 MWWHGX URGENT - MARINE WEATHER MESSAGE National Weather Service Houston/Galveston TX 650 AM CST Fri Dec 19 2025 GMZ330-350-355-191400- /O.CAN.KHGX.SC.Y.0070.000000T0000Z-251219T1400Z/ Matagorda Bay- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 650 AM CST Fri Dec 19 2025 ...SMALL CRAFT ADVISORY IS CANCELLED... Conditions are currently below Advisory criteria. Caution flags remain for the near shore Gulf waters. $$ GMZ370-375-191600- /O.EXT.KHGX.SC.Y.0070.000000T0000Z-251219T1600Z/ 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- 650 AM CST Fri Dec 19 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM CST THIS MORNING... * WHAT...Northeast winds 20 to 25 kt with gusts up to 35 kt and seas 5 to 7 ft. * WHERE...Portions of Gulf of America. * WHEN...Until 10 AM CST this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Time Extended Issued At: 2025-12-19 06:50:39 976 WHUS74 KHGX 191250 MWWHGX URGENT - MARINE WEATHER MESSAGE National Weather Service Houston/Galveston TX 650 AM CST Fri Dec 19 2025 GMZ330-350-355-191400- /O.CAN.KHGX.SC.Y.0070.000000T0000Z-251219T1400Z/ Matagorda Bay- Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- 650 AM CST Fri Dec 19 2025 ...SMALL CRAFT ADVISORY IS CANCELLED... Conditions are currently below Advisory criteria. Caution flags remain for the near shore Gulf waters. $$ GMZ370-375-191600- /O.EXT.KHGX.SC.Y.0070.000000T0000Z-251219T1600Z/ 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- 650 AM CST Fri Dec 19 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM CST THIS MORNING... * WHAT...Northeast winds 20 to 25 kt with gusts up to 35 kt and seas 5 to 7 ft. * WHERE...Portions of Gulf of America. * WHEN...Until 10 AM CST this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||