Marine Weather Net

Baffin Bay to Port Mansfield, TX 20 - 60 NM Marine Forecast


20 - 25


20 - 25


15 - 20


5 - 10

The Marine Weather Forecast In Detail:
GMZ175 Forecast Issued: 903 PM CST Mon Mar 01 2021

Rest Of Tonight...North Winds 20 To 25 Knots. Seas 6 To 9 Feet With Occasional Seas Up To 10 Feet. Chance Of Rain Showers.
Tuesday...Northwest Winds 20 To 25 Knots Shifting North 15 To 25 Knots In The Afternoon. Seas 6 To 9 Feet With Occasional Seas Up To 10 Feet. Slight Chance Of Rain Showers Through The Day.
Tuesday Night...North Winds 15 To 20 Knots Diminishing To 10 To 15 Knots After Midnight. Seas 4 To 6 Feet With Occasional Seas Up To 7 Feet.
Wednesday...Northeast Winds 5 To 10 Knots. Seas 2 To 4 Feet.
Wednesday Night...East Winds 5 To 10 Knots. Seas 2 To 4 Feet.
Thursday...East Winds 5 To 10 Knots. Seas 2 To 4 Feet.
Thursday Night...Southeast Winds 10 To 15 Knots. Seas 2 To 4 Feet.
Friday...Southeast Winds 5 To 10 Knots. Seas 2 To 3 Feet. Chance Of Showers.
Friday Night...North Winds 5 To 10 Knots Increasing To 15 To 20 Knots After Midnight. Seas 2 To 3 Feet.
Saturday...North Winds 15 To 20 Knots. Seas 3 To 5 Feet.
Saturday Night...Northeast Winds 10 To 15 Knots. Seas 3 To 5 Feet.
SHARE THIS PAGE:           
Synopsis for Baffin Bay to Rio Grande out 60 nm: GMZ100
340 AM CST Tue Mar 2 2021

Improving, but still adverse, marine conditions are expected along the Lower Texas Coast today and tonight as surface high pressure gradually builds in from the west in the wake of the Monday passage of a cold front. More favorable winds and seas will then prevail until the end of the week, when another cold front brings increasing winds and building seas at that time and into the weekend.
Area Forecast Discussion
National Weather Service Brownsville TX
323am CST Tuesday Mar 2 2021

Short Term - Now through Wednesday
Light precipitation is currently spreading over the central and eastern inland portions of the BRO CWFA and adjacent coastal waters with a cold front positioned over the western Gulf of Mexico. The precipitation should end by around sunrise this morning as closed 500 mb low pressure quickly shifts east to the Mississippi River Valley and surface high pressure builds in, allowing dry weather to prevail for the remainder of the period. Moderating temperatures are also anticipated as decreasing cloud cover allows for increasing sunshine.

Long Term - Wednesday Night through Monday
Surface high pressure across east Texas Wednesday night will move farther eastward Thursday into Thursday night. Temperatures will gradually warm Wednesday night into Friday as onshore surface flow develops. Low temperatures Wednesday night will fall into the 50s under partly cloudy skies. Thursday will be warm with highs in the 70s, the lower 80s across the west, with a mix of sun and clouds. A few showers will be possible on Friday as low level moisture increases along the lower Texas coast with the steady southeasterly flow. The next cold front moves across Texas on Friday and pushes through deep south Texas by Friday evening. Temperatures are expected to fall to near or slightly below normal in the wake of the front.

.Marine - Now through Wednesday
Adverse marine conditions will continue along the Lower Texas Coast until around sunset today with Small Craft Advisories in effect. Winds and seas will improve tonight and especially on Wednesday as high pressure becomes the dominant weather force over the region. However, seas may remain high enough tonight to warrant Small Craft Exercise Caution for the Gulf of Mexico waters from 20 to 60 nautical miles offshore.

Wednesday night through Saturday night...Favorable conditions are expected Wednesday night into Friday as high pressure prevails across the northwest Gulf. Light to moderate southerly flow and low to moderate seas will continue through Friday morning. The next cold front is expected to arrive by late Friday. Adverse conditions will develop in the wake of the front with moderate to strong north winds and building seas. A small craft advisory will likely be needed along the lower Texas coastal waters Saturday into Saturday night.

NOAA Brownsville TX Office: Watches - Warnings - Advisories
TX...None. GM...Small Craft Advisory until 9am CST this morning for GMZ130-132- 135.

Small Craft Advisory until 6pm CST this evening for GMZ150-155- 170-175.