Marine Weather and Tide Forecast for Port Mansfield, TX

LONG TERM
(Saturday night through Thursday)
Issued at 332 AM CDT Fri May 23 2025

The subtropical ridge looks to weaken early next week, allowing a series of upper-level shortwaves to traverse Texas Through the period. Southeasterly surface winds look to persist through the period, advecting additional moisture to the area. Combined with enhanced forcing from the aforementioned shortwaves, this will support increased cloud cover and rain chances beginning Monday night and continuing through the end of the period.

Afternoon high temperatures are expected to be in the mid to upper 90s Sunday, gradually falling to the low to mid 90s by the end of the period. Heat indices could approach 110 for a couple hours each afternoon from Sunday through Tuesday, likely remaining just below Heat Advisory thresholds. With the increased cloud cover and rain chances later in the week, heat will likely be less of a concern.

AVIATION
(12Z TAFS)
Issued at 621 AM CDT Fri May 23 2025

Mostly VFR conditions are expected for the majority of the TAF period at all TAF sites. Some breezy southeasterly winds are possible during the afternoon hours, but winds should weaken by the evening. There is a good possibility of low-level clouds moving over the area later tonight with the southeasterly flow that could see MVFR ceilings return to the region.

MARINE
Issued at 332 AM CDT Fri May 23 2025

Today through Saturday...Light to moderate southeasterly winds and low to moderate seas are expected through Saturday, however towards the later part of Saturday afternoon the winds could become more gustier with an enhanced pressure gradient over the Laguna Madre and the nearshore Gulf waters. This could result in Small Craft Exercise Caution for those areas for Saturday afternoon.

Saturday night through Thursday...Small Craft Should Exercise Caution headlines will likely be needed early next week as tightening pressure gradients along the Lower Texas Coast support stronger winds and moderates seas. Conditions look to improve slightly by mid week, with light to moderate winds and moderate seas continuing through the remainder of the period. Rain chances look to increase around mid week, with around a 20-30% chance for showers and thunderstorms Tuesday through the end of the period.

PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 92 78 92 81 / 10 0 0 0 HARLINGEN 94 76 94 78 / 0 0 0 0 MCALLEN 97 78 97 81 / 0 0 0 0 RIO GRANDE CITY 97 76 98 78 / 0 0 0 0 SOUTH PADRE ISLAND 86 79 86 80 / 10 0 0 0 BAYVIEW/PORT ISABEL 90 78 91 78 / 10 0 0 0

BRO WATCHES/WARNINGS/ADVISORIES
TX...None.
GM...None.