AFOS product AFDBRO
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Displaying AFOS PIL: AFDBRO
Product Timestamp: 2025-09-11 03:32 UTC

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071 
FXUS64 KBRO 110332
AFDBRO

Area Forecast Discussion
National Weather Service Brownsville TX
1032 PM CDT Wed Sep 10 2025

...New DISCUSSION, MARINE...

.KEY MESSAGES...
Updated at 1021 PM CDT Wed Sep 10 2025

-Daily rain chances continue into next week.

-Heat Risk will be Minor (level 1 out of 4) through the middle of 
next week with a few isolated areas of Moderate (level 2 our of 4).

&&

.DISCUSSION...
Issued at 1021 PM CDT Wed Sep 10 2025

An unsettled weather pattern continues across Deep South Texas due 
to a lingering stationary boundary, ample moisture, and weak 
impulses moving over the region. Best timing for any shower or 
thunderstorm activity will be late morning into the early 
evening. NBM continues to overdo precipitation chances over the 
next few days so have once again lowered to the 20-50% range 
through the remainder of the workweek.

As we head into the weekend the aforementioned boundary finally 
exits the region but a coastal trough begins to set up along the 
Mexican coast expanding to the lower Texas coast next week. This 
will keep low to medium rain chances in the forecast through 
Thursday.

Temperatures will remain near normal each day with heat indices of 
100 to 105. Heat Risk will be generally Minor (level 1 out of 4) 
with pockets of Moderate (level 2 out of 4), mainly across the 
lower and mid Valley, for the forecast period.

&&

.AVIATION...
(00Z TAFS)
Issued at 613 PM CDT Wed Sep 10 2025

VFR conditions will prevail through the TAF period. Could still
see an isolated shower or thunderstorm this evening, especially 
near KMFE. Rain should end later this evening, but spotty showers
and thunderstorms will redevelop Thursday morning and with low 
confidence on exact location of this activity included VCSH and 
VCTS in for Thursday. If and showers or thunderstorms do move
directly over the aerodromes, brief MVFR conditions will be 
possible.

&&

.MARINE...
Issued at 1021 PM CDT Wed Sep 10 2025

Generally favorable conditions with mostly light to moderate winds 
and seas of 2 to 4 feet. Rain and thunderstorm chances will continue 
on the waters off the lower Texas coast. Any shower or thunderstorm 
activity will lead to localized increased winds and seas.

&&

.PRELIMINARY POINT TEMPS/POPS...
BROWNSVILLE             78  92  78  91 /  50  50  40  60 
HARLINGEN               75  94  74  93 /  30  40  30  50 
MCALLEN                 78  96  77  95 /  30  50  20  70 
RIO GRANDE CITY         75  96  75  95 /  20  40  20  70 
SOUTH PADRE ISLAND      81  88  81  87 /  50  40  60  60 
BAYVIEW/PORT ISABEL     78  91  77  90 /  40  30  60  60 

&&

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

$$

DISCUSSION/MARINE/AVIATION...68