Marine Weather Net

High Island to Freeport, TX 20 - 60 NM Marine Forecast


TONIGHT

SW
WINDS
5 KNOTS

TUESDAY

NE
WINDS
5 KNOTS

TUESDAY NIGHT

SE
WINDS
10 - 15
KNOTS

WEDNESDAY

S
WINDS
10 - 15
KNOTS

The Marine Weather Forecast In Detail:
GMZ375 Forecast Issued: 330 PM CST Mon Nov 18 2019

Tonight...Southwest Winds Around 5 Knots Becoming West After Midnight. Seas 0 To 1 Feet In The Evening Then 2 Feet Or Less.
Tuesday...Northeast Winds Around 5 Knots Becoming Southeast In The Afternoon. 2 Feet Or Less Then 0 To 1 Feet In The Afternoon.
Tuesday Night...Southeast Winds 10 To 15 Knots. Seas 2 To 3 Feet.
Wednesday...South Winds 10 To 15 Knots Becoming Southeast 15 To 20 Knots In The Afternoon. Seas 3 To 5 Feet.
Wednesday Night...South Winds 15 To 20 Knots. Seas 4 To 6 Feet With Occasional Seas Up To 7 Feet.
Thursday...Southeast Winds 15 To 20 Knots. Seas 5 To 6 Feet With Occasional Seas Up To 7 Feet. A Slight Chance Of Showers And Thunderstorms In The Late Morning And Afternoon.
Thursday Night...South Winds 15 To 20 Knots. Seas 4 To 6 Feet With Occasional Seas Up To 7 Feet. A Slight Chance Of Showers And Thunderstorms.
Friday...South Winds 10 To 15 Knots Becoming West In The Afternoon. Seas 4 To 5 Feet With Occasional Seas Up To 6 Feet. A Chance Of Showers And Thunderstorms.
Friday Night...North Winds 15 To 20 Knots. Seas 3 To 5 Feet. Isolated Thunderstorms In The Evening. A Chance Of Showers.
Saturday...North Winds 15 To 20 Knots. Seas 3 To 5 Feet. A Chance Of Showers.
Saturday Night...North Winds 10 To 15 Knots. Seas 2 To 4 Feet.
SHARE THIS PAGE:           
Synopsis for High Island to the Matagorda Ship Channel out 60 nautical miles including Galveston and Matagorda Bays - GMZ300
330 PM CST Mon Nov 18 2019

Light northerly winds will prevail today. Onshore winds return Tuesday. Winds will strengthen Wednesday as the pressure gradient tightens in response to the next storm system developing and moving into the Central Plains. Caution or Advisory flags may be needed mid week.
Area Forecast Discussion
National Weather Service Houston/Galveston TX
455pm CST Monday Nov 18 2019

Short Term - Through Tuesday
High pressure ridge in place will continue to result in tranquil weather conditions through the rest of the short term period. Expect mostly sunny skies along with light and variable wind flow through the rest of the afternoon. As of 2pm CST, temperatures mostly ranged in the low 70s. For tonight, low temperatures in the upper 40s to mid 50s are expected. As temperatures cool overnight and reach near dewpoint, clear skies and light winds will help set up the stage for patchy fog development, initially across the southern regions of SE Texas, expanding further inland as the night progresses. Fog is expected to dissipate shortly after sunrise. Another pleasant and sunny day is expected Tuesday with winds becoming southerly throughout the day. 24

.LONG TERM [Tuesday Night Through Monday]... As high pressure moves off to the east and pressures begin to fall to the Lee of the Rockies Tuesday night and Wednesday, an onshore flow returns to the area and strengthens. Low rain chances are back in the forecast beginning Wednesday night, but the numbers begin rising (especially up north) beginning on Thursday as higher moisture levels and better lift enter the area. Models have begun to come into a little better agreement on bringing a cold front and our best rain chances into and through our area during the day on Friday. If this holds, the weekend is currently looking to set up to be dry and cool.

Warming temperatures (both lows and highs) can be expected until the cold front moves through on Friday. Wednesday's and Thursday's highs will be in the 70s (could even see an 80ish reading or two) followed by a cooldown after the frontal passage to close out the week and on through the weekend. Ahead of the front, the warmer air temperatures moving across the cooler water temperatures could lead to possible late night through early morning sea fog development (mainly in/around the Bays).

Highs on both Saturday and Sunday will probably struggle to get any warmer than the 60s. Look for lows over the weekend to come back down into mainly the 40s inland and 50s coast. 42

Marine
Light offshore winds to prevail today, with onshore flow returning Tuesday. Winds will increase Tuesday night through Wednesday as the pressure gradient tightens, and could result in SCEC conditions (Small Craft Should Exercise Caution) across the Gulf waters Wednesday afternoon through Thursday morning. Wind driven seas of 5 to 7 feet can be expected through at least early Friday. The next cold front is forecast to move across the local waters sometime between Friday night and Saturday morning. However...there are still a lot of inconsistencies with the models with respect to timing with this front. So stay tuned for any possible changes. Tranquil marine conditions expected throughout the upcoming weekend. 24

NOAA Houston/Galveston TX Office: Watches - Warnings - Advisories
TX...None. GM...None.