Marine Weather Net

Laguna Madre from Port Mansfield to Baffin Bay Marine Forecast


TONIGHT

N
WINDS
20
KNOTS

WEDNESDAY

N
WINDS
5 - 10
KNOTS

WEDNESDAY NIGHT

E
WINDS
5 - 10
KNOTS

THURSDAY

SE
WINDS
10 - 15
KNOTS

The Marine Weather Forecast In Detail:
GMZ135 Forecast Issued: 343 PM CST Tue Nov 05 2024

SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING
Tonight...North Winds Around 20 Knots, Diminishing To 5 To 10 Knots Late This Evening And Overnight. Rough Bay Waters, Diminishing To A Light Chop On The Bay Late This Evening And Overnight.
Wednesday...North Winds 5 To 10 Knots, Becoming East Late In The Afternoon. A Light Chop On The Bay.
Wednesday Night...East Winds 5 To 10 Knots, Becoming Southeast After Midnight. A Light Chop On The Bay.
Thursday...Southeast Winds 10 To 15 Knots. A Moderate Chop On The Bay.
Thursday Night...Southeast Winds 10 To 15 Knots. A Moderate Chop On The Bay.
Friday...Southeast Winds Around 10 Knots, Becoming Northeast Late In The Afternoon. A Light Chop On The Bay.
Friday Night...North Winds Around 10 Knots. A Light Chop On The Bay.
Saturday...North Winds 5 To 10 Knots, Becoming Northeast Late In The Afternoon. A Light Chop On The Bay.
Saturday Night...Northeast Winds 5 To 10 Knots. A Light Chop On The Bay.
Sunday...Northeast Winds 5 To 10 Knots. A Light Chop On The Bay.
Sunday Night...East Winds 5 To 10 Knots, Becoming Southeast After Midnight. A Light Chop On The Bay.
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Area Forecast Discussion
...UPDATED National Weather Service Brownsville TX
523pm CST Tuesday Nov 5 2024

Long Term
(Thursday through next Tuesday) Issued at 300pm CST Tuesday Nov 5 2024

Key Message: * Distant Rafael may bring increased rip currents and some minor tidal run-up late Friday into the weekend

On Thursday and Friday afternoon, warm moist air brought in by the passage of a warm front will bring a chance for isolated showers and thunderstorms to the Rio Grande Valley with much-above average high temperatures in the lower 90s. A mid-to-upper level trough is then expected to make its way over New Mexico, bringing a cold front to our area Friday night into Saturday. This cold front is not expected to bring much precipitation to Deep South Texas, but is expected to reduce temperatures to near-normal levels for the weekend. Areas in the Upper Rio Grande Valley could see low temperatures in the lower 50s on Saturday and Sunday morning while the Lower Valley will experience low temperatures in the lower 60s. The Ranchlands and areas closer to the coast could see high temperatures in the upper 70s on Saturday, but most areas will experience high temperatures in the low-to-mid 80s throughout the weekend. Temperatures will begin to gradually warm again on Monday as winds shift back to a southeasterly direction, and the Valley could see unseasonably warm highs in the 90s again by the beginning of next week.

Tropical Storm Rafael is expected to become a hurricane tonight and move into the southeastern Gulf of Mexico. At this time, its trajectory is uncertain, though the presence of considerable wind shear and cooler sea-surface temperatures across the north central Gulf by late week appear favorable for likely weakening of the system as it moves closer to shore, most likely along the northern Gulf coast far from the Lower Texas coat. Although the exact impacts to our area from Rafael are uncertain at this time, coastal impacts including an increasing likelihood for rip currents and some potential for minor coastal flooding (run-up) due to increased swell and wave heights. Note that predicted tides are at the lowest weekly levels by the weekend, so notable coastal flooding is unlikely. These conditions along the beach are expected by Friday and should continue through the weekend. Please visit the National Hurricane Center website at www.hurricanes.gov for the latest updates on Rafael.

Marine
Issued at 300pm CST Tuesday Nov 5 2024

This afternoon through Wednesday Night...Have extended the nearshore and Laguna Small Craft Advisory (mainly winds) through sunset (6 PM) and the offshore through 9pm to cover a slightly slower receding wind and sea situation. Thereafter, seas subside further to 3 to 4/5 feet Thursday while winds drop below 10 knots...before a slight uptick in the Gulf toward daybreak Thursday.

Thursday through Sunday night: Seas should be relatively calm (around 3 to 4 feet) on Thursday, and start to deteriorate on Friday as Rafael makes its way into the Gulf. Because wave heights and swell are expected to increase, Small Craft Exercise Caution and/or Small Craft Advisories may be needed headed into the weekend.

NOAA Brownsville TX Office: Watches - Warnings - Advisories
TX...Small Craft Advisory until 6pm CST this evening for TXZ351-354- 355-451-454-455.

High Rip Current Risk through late tonight for TXZ451-454-455.

GM...Small Craft Advisory until 6pm CST this evening for GMZ130-132- 135-150-155.

Small Craft Advisory until 9pm CST this evening for GMZ170-175.