textproduct: Brownsville/Rio Grande Valley
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
Updated at 1211 PM CDT Tue Jun 9 2026
* Moderate (level 2 of 4) Heat Risk will be a concern for the next several days.
* Gulf moisture and surface troughing is expected to arrive by Friday which will support low to moderate rain chances through at least Tuesday.
* There is a moderate risk of life-threatening rip currents at area beaches the rest of today, tonight, and tomorrow.
DISCUSSION
Issued at 1211 PM CDT Tue Jun 9 2026
Warm, humid, and rain-free conditions should persist through Deep South Texas through Thursday evening as upper level ridging remains dominant over the South Central Plains. As a result, Heat Risk will be a concern over the next several days. Moderate (level 2 of 4) Heat Risk is expected throughout all of Deep South Texas all week, through the weekend, and into early next week as well.
Rain chances will begin to increase on Friday as an influx of Gulf moisture is expected to arrive to Deep South Texas from the south. This influx of moisture will accompany surface troughing just to our south-southeast that will allow for low (10-30%) rain chances Friday, increasing to low to moderate (20-40%) for Saturday. Sunday through Tuesday will also support low to moderate chances (10-40% with the best chances on Tuesday) as the atmosphere continues to remain unsettled. PWATs are expected to remain unusually high (over 2 inches), so showers and any thunderstorms that happen to form will be efficient rainmakers. At this time, no significant accumulation or flood threats are expected, but we will continue to monitor.
A moderate risk of rip currents will persist at area beaches through at least tomorrow afternoon.
AVIATION
(18Z TAFS) Issued at 1211 PM CDT Tue Jun 9 2026
VFR conditions are expected to continue at all airports with southeasterly winds that could become gusty at times this afternoon. Clouds should be few to scattered with a little more cloud coverage expected early tomorrow morning (but still maintaining VFR conditions).
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 81 93 81 93 / 10 10 10 0 HARLINGEN 77 93 78 93 / 10 10 10 0 MCALLEN 79 96 80 96 / 10 10 0 10 RIO GRANDE CITY 77 97 78 97 / 0 10 0 0 SOUTH PADRE ISLAND 83 87 83 87 / 10 10 10 0 BAYVIEW/PORT ISABEL 81 90 81 90 / 10 10 10 0
BRO WATCHES/WARNINGS/ADVISORIES
TX...None. GM...None.
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