textproduct: Brownsville/Rio Grande Valley

KEY MESSAGES

Updated at 639 PM CDT Wed Apr 22 2026

Key Messages:

- Dry conditions with gradual warming through next week.

- "Feels like" temps in the triple digits possible this weekend into next week.

DISCUSSION

Issued at 128 PM CDT Wed Apr 22 2026

A benign pattern overhead will support mostly dry conditions with partly cloudy skies through the rest of the week. Ridging building over central-western Mexico will promote subsidence and a gradual warming trend into early next week. There is a Coastal Flood Statement in effect until 3 PM Wednesday; however, gradually decreasing tides through the rest of the week should limit additional coastal flooding concerns. Breezy to occasionally gusty southeasterly winds will persist each afternoon, with gusts around 25-30 mph.

Southeasterly flow will maintain ample low level moisture, leading to increasing apparent temperatures compared to recent months. This weekend, high temperatures climb towards the triple digits (80s/low 90s near coast), with widespread "feels like" temperatures in the triple digits (except along the immediate coast). Monday, actual High temperatures in the low triple digits west of US 281 are possible, with widespread elevated heat index values.

At our three climate sites in Brownsville, Harlingen, and McAllen, only McAllen has reached triple digit actual high temperatures this year (February 26, March 15). Forecast high temperatures for Monday at these sites are 93, 96, and 99, respectively. Stay tuned to the forecast as details are ironed out.

AVIATION

(00Z TAFS) Issued at 639 PM CDT Wed Apr 22 2026

VFR conditions are forecast to continue this evening with MVFR ceilings likely developing overnight. Ceilings are forecast to lift by late morning or early afternoon Thursday, with VFR conditions returning for the remainder of the period. Southeasterly winds are forecast to continue through the period, with wind gusts increasing Thursday afternoon.

MARINE

Issued at 128 PM CDT Wed Apr 22 2026

Gentle to moderate southeasterly flow under a benign pattern will maintain 4-5 ft seas through the weekend. Briefly gusty winds greater than 15 kts may bring temporary Small Craft Should Exercise Caution conditions today on the Laguna Madre. Primarily dry conditions prevail into next week.

PRELIMINARY POINT TEMPS/POPS

BROWNSVILLE 72 87 74 89 / 0 0 0 0 HARLINGEN 69 89 71 92 / 0 0 0 0 MCALLEN 73 92 75 95 / 0 0 0 0 RIO GRANDE CITY 72 94 73 97 / 0 0 0 0 SOUTH PADRE ISLAND 73 80 74 81 / 0 0 0 0 BAYVIEW/PORT ISABEL 71 85 72 87 / 0 0 0 0

BRO WATCHES/WARNINGS/ADVISORIES

TX...None. GM...None.