Laguna Madre from the Arroyo Colorado to Port Mansfield, TX Marine Forecast
| Today...Northeast Winds 5 To 10 Knots Increasing To 10 To 15 Knots This Afternoon. Light Chop On The Bay Becoming A Moderate Chop This Afternoon. A Slight Chance Of Showers And Thunderstorms This Morning. |
| Tonight...East Winds 10 To 15 Knots Decreasing To 5 To 10 Knots After Midnight. A Moderate Chop On The Bay Becoming Light Chop After Midnight. A Chance Of Showers And Thunderstorms After Midnight. |
| Saturday...East Winds 5 To 10 Knots Increasing To 10 To 15 Knots In The Afternoon. Light Chop On The Bay Becoming A Moderate Chop In The Afternoon. A Chance Of Showers And Thunderstorms. |
| Saturday Night...East Winds 10 To 15 Knots Decreasing To 5 To 10 Knots After Midnight. A Moderate Chop On The Bay Becoming Light Chop After Midnight. A Chance Of Showers And Thunderstorms. |
| Sunday...East Winds Around 5 Knots Increasing To 10 To 15 Knots In The Afternoon. Smooth On The Bay Becoming A Moderate Chop In The Afternoon. A Chance Of Showers And Thunderstorms. |
| Sunday Night...East Winds 10 To 15 Knots Decreasing To 5 To 10 Knots After Midnight. A Moderate Chop On The Bay Becoming Light Chop After Midnight. A Chance Of Thunderstorms In The Evening. A Chance Of Showers. A Slight Chance Of Thunderstorms After Midnight. |
| Monday...East Winds 5 To 10 Knots Increasing To 10 To 15 Knots In The Afternoon. Light Chop On The Bay Becoming A Moderate Chop In The Afternoon. A Slight Chance Of Thunderstorms In The Morning. A Chance Of Showers. A Chance Of Thunderstorms In The Afternoon. |
| Monday Night...East Winds 10 To 15 Knots Becoming Southeast 5 To 10 Knots After Midnight. A Moderate Chop On The Bay Becoming Light Chop After Midnight. A Chance Of Thunderstorms In The Evening. A Chance Of Showers. A Slight Chance Of Thunderstorms After Midnight. |
| Tuesday...Southeast Winds 5 To 10 Knots Becoming East 10 To 15 Knots In The Afternoon. Light Chop On The Bay Becoming A Moderate Chop In The Afternoon. A Slight Chance Of Thunderstorms In The Morning. A Chance Of Showers. A Chance Of Thunderstorms In The Afternoon. |
| Tuesday Night...East Winds 10 To 15 Knots Becoming Southeast 5 To 10 Knots After Midnight. A Moderate Chop On The Bay Becoming Light Chop After Midnight. A Chance Of Showers With A Slight Chance Of Thunderstorms. Winds And Waves Higher In And Near Thunderstorms. |
| Area Forecast Discussion ...UPDATED National Weather Service Brownsville TX 531am CDT Fri September 29 2023 Long Term (Saturday night through Thursday) Issued at 315am CDT Fri September 29 2023 The long term period begins with an upper-level ridge setting up over the Mississippi River Valley and a longwave trough along the west coast. A series mid-level disturbances will provide some weak synoptic forcing for Deep South Texas early in the period. As the trough moves eastward through the week, a surface low will develop over the Northern Plains and work its way toward the Great Lakes. A cold front extending southwest from this low will make its way into Texas by mid week. Recent runs of the global models continue to push this front through Deep South Texas towards the end of the period, however, much uncertainty still remains regarding the timing and strength of the front. In terms of precipitation, isolated to scattered showers and thunderstorms are possible each afternoon along the seabreeze. Additionally, weak synoptic forcing from passing shortwaves could support isolated showers or thunderstorms Saturday night through Tuesday morning. Starting Wednesday afternoon, the approaching cold front may lead to higher concentrations of showers and thunderstorms through the end of the period, however confidence remains low on when and how this front will impact Deep South Texas. Temperatures will remain hot for the period, with afternoon highs in the mid to upper 90s. Western most portions of the CWA (County Warning Area) may reach the low 100s. Lows are expected to be in the low to mid 70s through the period. High pressure setting up over the Gulf of Mexico will allow for longer fetch and greater wave heights. This will likely increase the rip current risk at local beaches through the period. Additionally, greater lunar tides and wave heigheights could combine to increase the risk of minor coastal flooding next week. Marine Issued at 315am CDT Fri September 29 2023 Today through Saturday...Buoy 42020 reported east winds around 8 knots gusting to around 10 knots with seas of 3 feet with a period of 5 seconds at 2:50 CDT/7:50 UTC. Light to moderate winds and low to moderate seas will prevail along the Lower Texas Coast with surface high pressure the dominant feature over the western Gulf of Mexico. Small Craft Exercise Caution and Small Craft Advisory are not likely to be needed. Saturday night through Thursday...Strengthening high pressure over the Gulf of Mexico will allow for longer fetch and greater wave heigheights through the period. Wave heigheights could approach 6ft by early next week, possibly requiring a Small Craft Should Exercise Caution headline. Locally, winds will remain light to moderate over the Laguna Madre and coastal waters. Isolated to scattered showers and thunderstorms will be possible through the period thanks to a number of weak mid-level disturbances that will move through during the period. By the end of the period an approaching cold front could increase shower and thunderstorm activity, however confidence on the timing and impacts of the front remains low. NOAA Brownsville TX Office: Watches - Warnings - Advisories None. |
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