Marine Weather Net

Galveston Bay Marine Forecast


TONIGHT

NE
WINDS
15 - 20
KNOTS

MONDAY

E
WINDS
10 - 15
KNOTS

MONDAY NIGHT

SE
WINDS
10 - 15
KNOTS

TUESDAY

SE
WINDS
10
KNOTS

The Marine Weather Forecast In Detail:
GMZ335 Forecast Issued: 904 PM CDT Sun Apr 21 2024

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT MONDAY
Tonight...Northeast Winds 15 To 20 Knots. Bay Waters Choppy.
Monday...East Winds 10 To 15 Knots, Becoming Southeast Late. Bay Waters Slightly Choppy, Becoming Smooth To Slightly Choppy Late.
Monday Night...Southeast Winds 10 To 15 Knots, Diminishing To Around 10 Knots In The Late Evening And Overnight. Bay Waters Slightly Choppy, Becoming Smooth In The Late Evening And Overnight.
Tuesday...Southeast Winds Around 10 Knots, Increasing To 10 To 15 Knots In The Afternoon. Bay Waters Slightly Choppy.
Tuesday Night...South Winds 15 To 20 Knots, Diminishing To Around 10 Knots. Bay Waters Choppy, Becoming Smooth.
Wednesday...Southeast Winds Around 10 Knots, Increasing To 10 To 15 Knots In The Afternoon. Bay Waters Smooth, Becoming Slightly Choppy In The Afternoon.
Wednesday Night...Southeast Winds 10 To 15 Knots. Bay Waters Slightly Choppy.
Thursday...Southeast Winds Around 10 Knots, Increasing To Around 15 Knots In The Afternoon. Bay Waters Smooth To Slightly Choppy, Becoming Slightly Choppy To Choppy In The Afternoon.
Thursday Night...Southeast Winds Around 15 Knots. Bay Waters Slightly Choppy To Choppy.
Friday...South Winds 15 To 20 Knots. Bay Waters Choppy.
Friday Night...South Winds Around 15 Knots. Bay Waters Slightly Choppy To Choppy.
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Area Forecast Discussion
National Weather Service Houston/Galveston TX
1124pm CDT Sunday April 21 2024

Long Term
(Tuesday through next Saturday) Issued at 316pm CDT Sunday April 21 2024

The surface high that gives us cooler, less humid days in the short term...will shift E of the area on Tuesday with return flow kicking in on off the Gulf. This sets the stage for a warming trend and increasing levels of humidity as we go through the mid and later part of the week. A tightening pressure gradient will lead to strengthening onshore flow, with breezy, warm and humid conditions in place by late in the week and next weekend. Should be mainly free of any rain through at least Wednesday with some scattered showers and possibly a thunderstorm possible as we get toward Friday and next weekend. By that time will have plenty of deep moisture and an upper trough progressing eastward across the Plains. Northern zones will have a better chance of showers...and possible thunderstorms...closer to the influence of that upper feature. Will likely see a cap inhibiting deeper convection for at least southern zones. Better thunderstorm chances would be north of the forecast area the way it looks now.

Reilly

Marine
Issued at 316pm CDT Sunday April 21 2024

Moderate NE winds this afternoon will veer and become more ENE tonight. Higher resolution models suggests speeds should stay up over the marine area including the bays around 20 knots or so...so planning to stick with a lower end Small Craft Advisory until at least 7am CDT. The gradient should slacken enough by Monday to drop winds below SCA (Small Craft Advisory) levels but will still be somewhat breezy as high pressure builds in from the N. The high shifts E on Tuesday with return onshore flow kicking in. This sets the stage for a warming trend and increasing levels of humidity as we go through the week. A tightening pressure gradient will lead to strengthening south and southeasterly flow and building seas by late in the week. Should be mainly free of any rain across the waters for at least the next 5 days.

Reilly

NOAA Houston/Galveston TX Office: Watches - Warnings - Advisories
TX...None. GM...Small Craft Advisory until 7am CDT Monday for GMZ330-335-350- 355-370-375.