Marine Weather Net

Freeport to Matagorda Ship Channel, TX Marine Forecast




10 - 15


10 - 15


10 - 15

The Marine Weather Forecast In Detail:
GMZ350 Forecast Issued: 330 AM CST Sat Feb 22 2020

Today...East Winds Around 10 Knots. Seas 2 To 3 Feet.
Tonight...Southeast Winds 10 To 15 Knots. Seas 2 To 3 Feet.
Sunday...Southeast Winds 10 To 15 Knots Increasing To 15 To 20 Knots In The Afternoon. Seas 2 To 3 Feet. A Slight Chance Of Sprinkles Early In The Morning.
Sunday Night...South Winds 10 To 15 Knots. Seas 2 To 4 Feet. A Chance Of Showers Late.
Monday...Southwest Winds Around 10 Knots Becoming 5 To 10 Knots In The Afternoon. Seas 2 To 4 Feet. A Chance Of Showers.
Monday Night...Northwest Winds 5 To 10 Knots Becoming North 10 To 15 Knots After Midnight. Seas 2 To 3 Feet.
Tuesday...Northeast Winds 5 To 10 Knots. Seas 2 To 3 Feet.
Tuesday Night...North Winds 20 To 25 Knots Becoming 20 To 30 Knots After Midnight. Seas 3 To 5 Feet.
Wednesday...Northwest Winds 20 To 25 Knots. Seas 3 To 5 Feet.
Wednesday Night...North Winds 15 To 25 Knots Becoming 15 To 20 Knots After Midnight. Seas 2 To 3 Feet.
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Synopsis for High Island to the Matagorda Ship Channel out 60 nautical miles including Galveston and Matagorda Bays - GMZ300
330 AM CST Sat Feb 22 2020

As surface high pressure moves further off to the northeast weak onshore winds will return by this evening and strengthen Sunday. The next cold front will cross the Gulf waters Monday night. A second much stronger cold frontal passage late Tuesday night will initiate Advisory conditions Wednesday.
Area Forecast Discussion
National Weather Service Houston/Galveston TX
407am CST Sat Feb 22 2020

.SHORT TERM [Today through Sunday]... Transitory ridging across the state will ensure continued dry conditions today. Surface high pressure moving further northeast into the mid Atlantic states will have weak easterlies veering onshore through the day. Early day sky clear with thickening cirrus as high cloud cover spills over the upper ridge axis. A subtle uptick in this afternoon's moisture will assist in pushing today's temperatures up to around 60 F, or a few degrees warmer than yesterday. Gradually increasing dew points through Sunday morning will make for a milder start to the day; lower to middle 40s over the northeastern third of the CWA to near 50 F over the southwestern forecast area where clouds will be thickening from the southwest-to- northeast. A mostly cloudy Sunday with strengthened onshore winds will drivepm temperatures up into the middle to upper 60s/lower 70s around Matagorda Bay. There will be slight chances for very light western county rain showers or sprinkles within this enhanced warm air advection pattern. 31

.LONG TERM [Sunday Night through Saturday]... Increasing rain chances come back Sunday night through Monday as a cold front works its way into and through the area. Rains come to an end generally from the west to the east as the day progresses on Monday, with all activity expected to be off the coast by sunset. Moisture levels are expected to be too low for any significant rain to develop when the next and much stronger cold front races through the area and off the coast on Tuesday. Similar to our last strong front, it looks like it could end up being breezy inland and windy near the coast Tuesday night through Wednesday, and wind advisories might be needed. Besides these wind, it will also be turning colder behind the front with Wednesday through Saturday temperatures generally in the 30s/40s for lows and in the 50s/60s for highs as surface high pressure slowly edges eastward across the state. By next Sunday with the high finally off to our east, moisture levels look to rise as onshore winds come back to the area and strengthen, and this should bring us our next shot of rain. 42

A quiet couple of days over the maritime with onshore flow returning today and strengthening to Caution levels across more western Gulf waters tomorrow afternoon. Two fronts will cross the local waters next week; a weak front late Monday into early Tuesday and a much stronger boundary passage Tuesday night-Wednesday morning. The first early week frontal passage will increase Monday afternoon's shower chances while the dry mid-week stronger frontal passage will significantly strengthen offshore flow in its wake. A much colder air mass descending down over the warmer Gulf waters will ensure a Wednesday of very strong northerlies that will likely frequently gust near or above gale force through the day. 31

NOAA Houston/Galveston TX Office: Watches - Warnings - Advisories