GMZ300-191330-
 747 PM CDT Sat Apr 18 2026
 
 .Synopsis For High Island to the Matagorda Ship Channel Out 60 NM
 including Galveston and Matagorda Bays.
 
 Lingering showers and isolated storms will continue into early
 Sunday morning in the wake of a cold front. Hazardous marine
 conditions are expected 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 anticipated in the Gulf
 Waters. Winds will lower through the day on Sunday, but seas may
 remain elevated into Sunday night. Water levels are expected to
 remain near 3.0 feet above Mean Lower Low Water during high tide
 cycles going into early next week.
 
 $$



   GMZ370-375-191330-  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-  747 PM CDT Sat Apr 18 2026    GALE WARNING IN EFFECT THROUGH SUNDAY AFTERNOON    TONIGHT  Southeast winds around 10 knots, becoming northeast  around 20 knots late this evening, then becoming north 20 to  25 knots with gusts up to 30 knots after midnight, becoming  northeast around 30 knots late. Seas 3 to 4 feet, building to  4 to 6 feet, occasionally to 8 feet after midnight. Wave Detail:  South 3 feet at 6 seconds, becoming northeast 4 feet at 4 seconds  and south 2 feet at 5 seconds. A chance of showers and  thunderstorms.  SUNDAY  Northeast winds around 30 knots with gusts up to  40 knots, diminishing to 20 to 25 knots with gusts up to 30 knots  in the afternoon. Seas 7 to 10 feet, occasionally to 13 feet.  Wave Detail: Northeast 8 feet at 7 seconds and south 1 foot at  6 seconds. A chance of showers with a slight chance of  thunderstorms in the morning, then a slight chance of showers in  the afternoon.  SUNDAY NIGHT  East winds 20 to 25 knots. Seas 6 to 8 feet,  occasionally to 10 feet. Wave Detail: Northeast 8 feet at  7 seconds. A chance of showers after midnight.  MONDAY  East winds 15 to 20 knots with gusts up to 25 knots.  Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East  6 feet at 7 seconds. A chance of showers.  MONDAY NIGHT  East winds around 15 knots with gusts up to  20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:  Northeast 3 feet at 6 seconds. A chance of showers.  TUESDAY  Southeast winds around 15 knots with gusts up to  20 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at  7 seconds. A chance of showers in the morning, then showers  likely with a chance of thunderstorms in the afternoon.  TUESDAY NIGHT  East winds 15 to 20 knots, becoming southeast  around 15 knots after midnight. Seas around 4 feet. A chance of  thunderstorms. Showers likely, mainly in the evening.  WEDNESDAY  Southeast winds 10 to 15 knots. Seas around 4 feet.  A chance of thunderstorms. Showers likely, mainly in the morning.  WEDNESDAY NIGHT  Southeast winds 15 to 20 knots. Seas around  4 feet.  THURSDAY  Southeast winds around 15 knots. Seas 4 to 5 feet.  THURSDAY NIGHT  Southeast winds 15 to 20 knots. Seas 4 to  5 feet.    Winds and seas higher in and near thunderstorms.    $$