Laguna Madre from the Port of Brownsville to the Arroyo Colorado Marine Forecast
| Rest Of Today...North Winds Around 15 Knots, Diminishing To 5 To 10 Knots Early This Afternoon, Then Becoming Northeast Late This Afternoon. A Moderate Chop On The Bay, Diminishing To Light Chop This Afternoon. |
| Tonight...East Winds Around 5 Knots, Becoming South In The Late Evening And Overnight. Smooth On The Bay. |
| Monday...Southeast Winds 5 To 10 Knots, Increasing To 10 To 15 Knots In The Afternoon. A Moderate Chop On The Bay. |
| Monday Night...Southeast Winds 10 To 15 Knots. A Moderate Chop On The Bay. |
| Tuesday...East Winds 10 To 15 Knots. A Moderate Chop On The Bay. A Slight Chance Of Showers In The Morning, Then A Chance Of Showers In The Afternoon. |
| Tuesday Night...Southeast Winds 10 To 15 Knots, Becoming Around 10 Knots Early In The Morning. A Moderate Chop On The Bay, Diminishing To Light Chop Early In The Morning. A Chance Of Showers. |
| Wednesday...Southeast Winds 5 To 10 Knots. Light Chop On The Bay. Showers Likely With A Slight Chance Of Thunderstorms. |
| Wednesday Night...East Winds 5 To 10 Knots, Becoming North After Midnight. Light Chop On The Bay. A Chance Of Showers, Mainly In The Evening. |
| Thursday...North Winds Around 10 Knots, Becoming Northeast Late In The Afternoon. Light Chop On The Bay. |
| Thursday Night...Northeast Winds 5 To 10 Knots, Becoming Southeast After Midnight. Light Chop On The Bay, Diminishing To Smooth After Midnight. Winds And Waves Higher In And Near Thunderstorms. |
| Area Forecast Discussion ...UPDATED National Weather Service Brownsville TX 512am CST Sunday Jan 18 2026 Issued at 1053pm CST Sat Jan 17 2026 Satellite and surface observations indicate that cloud cover is moving out of the area, with clear skies developing across the region. Clear skies, combined with light northerly winds will allow for efficient cooling tonight, as temperatures drop into the low 30s across northern portions of the CWA (County Warning Area) and into the upper 30s to low 40s in the Lower Rio Grande Valley. The Freeze Warning for Zapata, Jim Hogg, Brooks and Kenedy counties will be in effect from 4am to 9am as temperatures will likely drop below freezing for a brief period around sunrise. Light winds and sunny skies Sunday will likely allow temperatures to climb back into the 60s by Sunday afternoon. The dry airmass will remain in place Sunday, with afternoon relative humidity values likely falling into the teens. However, light winds across the area will limit any fire weather concerns, so a Fire Danger Statement or Red Flag Warning likely won't be needed. Winds will likely shift back to the southeast by Sunday evening, allowing for gradually warmer temperatures through mid week. High temperatures will likely return to the 70s Monday and may reach the low 80s by Friday. An upper level shortwave traversing Northern Mexico and the Southern US midweek will likely provide enough forcing to bring rain chances back to the area Tuesday and Wednesday. Additionally, another cold front looks to approach the area during the later half of the week, though there is significant uncertainty on when or if the front will move through Deep South Texas. Marine Issued at 1053pm CST Sat Jan 17 2026 Hazardous marine conditions will continue into Sunday morning, with conditions forecast to improve through the day. Wind speeds are forecast to begin to subside around sunrise, with seas improving shortly thereafter. The Small Craft Advisory may need to be extended or replaced with a Small Craft Should Exercise Cation headline for a couple hours as conditions improve Sunday morning. Favorable marine conditions will likely return Sunday afternoon, and generally continue through the week. Winds and seas may briefly approach Small Craft Should Exercise Caution criteria Tuesday night as pressure gradients tighten along the Lower Texas Coast. NOAA Brownsville TX Office: Watches - Warnings - Advisories TX...Freeze Warning until 9am CST this morning for TXZ248>251. High Rip Current Risk through this afternoon for TXZ451-454-455. High Surf Advisory until 9am CST this morning for TXZ451-454- 455. GM...Small Craft Advisory until 9am CST this morning for GMZ130-132- 135-150-155-170-175. |
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