Marine Weather Net

Galveston Bay Marine Forecast


REST OF TONIGHT

SE
WINDS
10 - 15
KNOTS

TUESDAY

SE
WINDS
10 - 15
KNOTS

TUESDAY NIGHT

SE
WINDS
10 - 15
KNOTS

WEDNESDAY

S
WINDS
10 - 15
KNOTS

The Marine Weather Forecast In Detail:
GMZ335 Forecast Issued: 940 PM CST Mon Feb 06 2023

SMALL CRAFT SHOULD EXERCISE CAUTION
Rest Of Tonight...Southeast Winds 10 To 15 Knots. Bay Waters Slightly Choppy. Patchy Fog.
Tuesday...Southeast Winds 10 To 15 Knots. Bay Waters Slightly Choppy. Patchy Fog Until Late Afternoon.
Tuesday Night...Southeast Winds 10 To 15 Knots. Bay Waters Slightly Choppy. A Chance Of Showers In The Late Evening And Overnight.
Wednesday...South Winds 10 To 15 Knots, Becoming Southwest In The Afternoon. Bay Waters Slightly Choppy. Patchy Fog In The Morning. A Chance Of Thunderstorms. A Chance Of Showers In The Morning, Then Showers In The Afternoon.
Wednesday Night...Northwest Winds 10 To 15 Knots, Diminishing To Around 10 Knots Late. Bay Waters Slightly Choppy, Becoming Smooth Late. A Chance Of Showers And Thunderstorms In The Evening.
Thursday...Northwest Winds 5 To 10 Knots, Becoming Southwest In The Afternoon. Bay Waters Smooth.
Thursday Night...West Winds Around 10 Knots, Becoming Northwest After Midnight. Bay Waters Smooth To Slightly Choppy, Becoming Slightly Choppy After Midnight.
Friday...Northwest Winds Around 15 Knots. Bay Waters Slightly Choppy To Choppy.
Friday Night...Northwest Winds 10 To 15 Knots. Bay Waters Slightly Choppy.
Saturday...North Winds Around 10 Knots, Becoming Northeast In The Afternoon. Bay Waters Smooth To Slightly Choppy.
Saturday Night...East Winds Around 10 Knots. Bay Waters Smooth To Slightly Choppy. Winds And Waves Higher In And Near Thunderstorms.
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Area Forecast Discussion
National Weather Service Houston/Galveston TX
522pm CST Monday Feb 6 2023

Long Term
(Wednesday Night through next Sunday) Issued at 352pm CST Monday Feb 6 2023

Any lingering showers will remain well offshore by Wednesday evening. Behind the front, breezy northwest winds will be in place as a weak surface high builds in over TX. As the night progresses, winds will transition to southwest in response to a progressive surface low moving over north TX, ahead of another upper-level trough digging over the northern/central Rockies. This will bring a weak surge of Cold Air Advection over the region Wednesday night into Thursday with overnight lows from the upper 30s to upper 40s.

The aforementioned surface low will drag a reinforcing dry front by Thursday afternoon/evening. A surge of cold and drier air seems more pronounced behind this front with forecast soundings showing winds from 28 to 38+ knots at top of the mixed layer late Thursday into Saturday. For this reason, raised winds closer to the NBM 90th percentile mainly for Friday (further increases in future forecasts possible) and also lowered surface dewpoints closer to CONSRAW values to produce values in the 20 to 30 degF range. Overall, expect drier conditions with a brief cool down persisting, at least through Sunday. Highs will generally be in the 50s Friday and Saturday, and in the 60s on Sunday. Friday night into Saturday morning will be one of the coldest nigheights of the long-term period with lows from the upper 20s to upper 30s.

JM

Marine
Issued at 352pm CST Monday Feb 6 2023

Moderate onshore winds will continue tonight in advance of the next frontal passage that is forecast to move over the Gulf waters by Wednesday afternoon. Elevated seas are also expected with seas up to 7ft at times. A Small Craft Advisory remains in effect for our open waters (20-60 nm) through Tuesday morning. Patchy sea fog, dense at times, will be possible tonight, mainly over the Bays and nearshore waters. However, the best potential for dense sea fog will be prior to front Tuesday night into Wednesday. Rain and storm chances will be on the increase Tuesday night into Wednesday ahead and along the front. A few strong storms will be capable of producing gusty/erratic winds. Light to moderate offshore winds are expected in the wake of the front Wednesday. However, a reinforcing dry front will move over the waters late Thursday, resulting in stronger winds into early Saturday.

JM

NOAA Houston/Galveston TX Office: Watches - Warnings - Advisories
TX...None. GM...Small Craft Should Exercise Caution until 4am CST Tuesday for GMZ330-335.

Small Craft Should Exercise Caution through Tuesday morning for GMZ350-355.

Small Craft Advisory until 10am CST Tuesday for GMZ370-375.