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Home Return to list Low Water Advisory 0007 Issued by the Houston / Galveston Forecast Office
Action: New Issued At: 2026-02-04 21:27:29 614 WHUS74 KHGX 050326 MWWHGX URGENT - MARINE WEATHER MESSAGE National Weather Service Houston/Galveston TX 926 PM CST Wed Feb 4 2026 GMZ335-051130- /O.NEW.KHGX.LO.Y.0007.260205T0326Z-260206T1800Z/ Galveston Bay- 926 PM CST Wed Feb 4 2026 ...LOW WATER ADVISORY IN EFFECT UNTIL AT LEAST NOON CST FRIDAY... * WHAT...Abnormally low water levels. * WHERE...Galveston Bay. * WHEN...Until noon CST Friday. * IMPACTS...Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Water levels at Manchester during low tide this evening were observed more than 1 foot below MLLW. Similar conditions should be expected at times of low tide through Friday morning and potentially longer. The greatest area of concern is around and above Morgans Point, with negative tide conditions becoming less severe lower in the bay. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ GMZ350-355-370-375-051130- /O.CON.KHGX.SC.Y.0010.000000T0000Z-260205T1200Z/ Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM-Waters from High Island to Freeport TX from 20 to 60 NM- 926 PM CST Wed Feb 4 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST THURSDAY... * WHAT...North winds 15 to 25 kt with gusts up to 30 kt. * WHERE...Portions of Gulf of America. * WHEN...Until 6 AM CST Thursday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2026-02-04 22:59:32 610 WHUS74 KHGX 050459 MWWHGX URGENT - MARINE WEATHER MESSAGE National Weather Service Houston/Galveston TX 1059 PM CST Wed Feb 4 2026 GMZ335-051300- /O.CON.KHGX.LO.Y.0007.000000T0000Z-260206T1800Z/ Galveston Bay- 1059 PM CST Wed Feb 4 2026 ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL NOON CST FRIDAY... * WHAT...Abnormally low water levels. * WHERE...Galveston Bay. * WHEN...Until noon CST Friday. * IMPACTS...Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Water levels at Manchester during low tide this evening were observed more than 1 foot below MLLW. Similar conditions should be expected at times of low tide through Friday morning and potentially longer. The greatest area of concern is around and above Morgans Point, with negative tide conditions becoming less severe lower in the bay. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ GMZ350-355-370-375-051200- /O.CON.KHGX.SC.Y.0010.000000T0000Z-260205T1200Z/ Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM-Coastal waters from High Island to Freeport TX out 20 NM- Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM-Waters from High Island to Freeport TX from 20 to 60 NM- 1059 PM CST Wed Feb 4 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST THURSDAY... * WHAT...North winds 15 to 25 kt with gusts up to 30 kt. * WHERE...Portions of Gulf of America. * WHEN...Until 6 AM CST Thursday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2026-02-05 05:54:07 542 WHUS74 KHGX 051153 MWWHGX URGENT - MARINE WEATHER MESSAGE National Weather Service Houston/Galveston TX 553 AM CST Thu Feb 5 2026 GMZ350-355-370-375-051300- /O.CAN.KHGX.SC.Y.0010.000000T0000Z-260205T1200Z/ 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- 553 AM CST Thu Feb 5 2026 ...SMALL CRAFT ADVISORY IS CANCELLED... Winds and seas are beginning to diminish. Small craft should still exercise caution offshore. $$ GMZ335-061200- /O.CON.KHGX.LO.Y.0007.000000T0000Z-260206T1800Z/ Galveston Bay- 553 AM CST Thu Feb 5 2026 ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL NOON CST FRIDAY... * WHAT...Abnormally low water levels. * WHERE...Galveston Bay. * WHEN...Until noon CST Friday. * IMPACTS...Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Water levels near or slightly below -1 foot MLLW are anticipated across northern Galveston Bay around low tide cycles. The greatest area of concern is around and above Morgans Point, with negative tide conditions becoming less significant lower in the bay. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ Action: Continued Issued At: 2026-02-05 13:09:18 066 WHUS74 KHGX 051909 MWWHGX URGENT - MARINE WEATHER MESSAGE National Weather Service Houston/Galveston TX 109 PM CST Thu Feb 5 2026 GMZ335-060315- /O.CON.KHGX.LO.Y.0007.000000T0000Z-260206T1800Z/ Galveston Bay- 109 PM CST Thu Feb 5 2026 ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL NOON CST FRIDAY... * WHAT...Abnormally low water levels. * WHERE...Galveston Bay. * WHEN...Until noon CST Friday. * IMPACTS...Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Water levels near or slightly below -1 foot MLLW are anticipated across northern Galveston Bay around low tide cycles. The greatest area of concern is around and above Morgans Point, with negative tide conditions becoming less significant lower in the bay. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ Action: Continued Issued At: 2026-02-05 22:53:33 917 WHUS74 KHGX 060453 MWWHGX URGENT - MARINE WEATHER MESSAGE National Weather Service Houston/Galveston TX 1053 PM CST Thu Feb 5 2026 GMZ335-061300- /O.CON.KHGX.LO.Y.0007.000000T0000Z-260206T1800Z/ Galveston Bay- 1053 PM CST Thu Feb 5 2026 ...LOW WATER ADVISORY REMAINS IN EFFECT UNTIL NOON CST FRIDAY... * WHAT...Abnormally low water levels. * WHERE...Galveston Bay. * WHEN...Until noon CST Friday. * IMPACTS...Below normal water levels will result in hazardous navigating conditions. * ADDITIONAL DETAILS...Even after the ending of this advisory, mariners should still use extra caution in shallows as less severe negative tides are still expected, albeit with water levels above the threshold for an advisory. There is also a potential need for a new advisory for Saturdays low tide cycle. Continue to monitor the latest information into the weekend. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should navigate shallow waters with extreme caution due to below normal water levels. && $$ Action: Cancelled Issued At: 2026-02-06 04:40:05 540 WHUS74 KHGX 061039 MWWHGX URGENT - MARINE WEATHER MESSAGE National Weather Service Houston/Galveston TX 439 AM CST Fri Feb 6 2026 GMZ335-061145- /O.CAN.KHGX.LO.Y.0007.000000T0000Z-260206T1800Z/ Galveston Bay- 439 AM CST Fri Feb 6 2026 ...LOW WATER ADVISORY IS CANCELLED... Low astronomical tides are expected the next several days and water levels around low tide cycles in the northern part of the bay should be down to about -0.75 MLLW. These values are above the advisory criteria of -1 MLLW. That said, mariners should be aware of negative tides before beginning or continuing their transits. $$ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||