textproduct: Brownsville/Rio Grande Valley

KEY MESSAGES

Updated at 529 AM CST Sun Feb 8 2026

- Dry weather throughout the forecast.

- Well above normal temperatures.

- Elevated rip current risk for much of new work week.

UPDATE

Issued at 316 AM CST Sun Feb 8 2026

Dense fog has developed in the northern Ranchlands this morning reducing visibilities to a half mile or less at times, warranting the issuance of a Dense Fog Advisory until 9 AM Sunday.

Shallow patchy fog, dense at times, in the Rio Grande Valley is possible through 9 AM. This is more likely in rural/grassy areas. Southeasterly winds at 5-10 mph have been limiting this fog, but if winds continue to decrease, this may warrant further fog headlines. (69-HK)

DISCUSSION

Issued at 914 PM CST Sat Feb 7 2026

No significant changes to the current forecast trends. Deep South Texas and the Rio Grande Valley will generally remain on the periphery of 500 mb high pressure throughout a majority of the period, with dry weather the result. Rain-free conditions will even persist on Tuesday, despite the rapid passage of a 500 mb trough through the Lone Star State.

Temperature-wise, with no significant cold front passages likely, well above normal daytime highs and overnight lows will occur. Long range model guidance, however, does hint at the intrusion of a weak cold front into the BRO CWFA on Valentine's Day.

Finally, as seas begin to build along the Lower Texas Coast in response to stronger winds, an elevated risk of rip currents will become more likely during the upcoming new work week.

AVIATION

(12Z TAFS) Issued at 529 AM CST Sun Feb 8 2026

Patchy, shallow ground fog, dense at times, impacting all sites this morning. BRO and HRL may see visibilities a mile or less through 15Z before fog burns off and mixes out with daytime heating. VFR conditions to prevail for a majority of the 06Z cycle. South-southeasterly winds picking up in the afternoon to 10-15 kts with gusts to 20 kts possible.

MARINE

Issued at 914 PM CST Sat Feb 7 2026

Light to moderate winds and low to moderate seas continue to be expected for the lower Texas coastal waters throughout the period. Although Small Craft Advisory is not likely to be needed, Small Craft Should Exercise Caution cannot be entirely ruled out, especially on Tuesday, Friday, and Saturday, due to an enhanced pressure gradient.

PRELIMINARY POINT TEMPS/POPS

BROWNSVILLE 79 59 80 64 / 0 0 0 0 HARLINGEN 82 54 82 59 / 0 0 0 0 MCALLEN 85 59 85 62 / 0 0 0 0 RIO GRANDE CITY 85 55 86 60 / 0 0 0 0 SOUTH PADRE ISLAND 72 62 72 65 / 0 0 0 0 BAYVIEW/PORT ISABEL 77 57 78 62 / 0 0 0 0

BRO WATCHES/WARNINGS/ADVISORIES

TX...Dense Fog Advisory until 9 AM CST this morning for TXZ249>251- 353.

GM...None.