985
FXUS64 KBRO 031115
AFDBRO

Area Forecast Discussion
National Weather Service Brownsville TX
615 AM CDT Wed Sep 3 2025

...New AVIATION...

.KEY MESSAGES...
Updated at 615 AM CDT Wed Sep 3 2025

-Rain chances return this weekend and early next week.

-Heat Risk will be Minor (level 1 out of 4)to with a Major Risk
 (level 3 out of 4).

&&

.DISCUSSION...
Issued at 1014 PM CDT Tue Sep 2 2025

Rain chances taper off into Wednesday morning as high pressure
pushes into Deep South Texas with the front finally moving south of
the region. Rainfall chances Wednesday through Friday will generally
be less than 15% as drier air takes hold.

As we head into the weekend, another cold front moving into central
Texas will lead to moisture pooling and an increased chance of
showers and thunderstorms once again for the weekend into the first
half of next week. Saturday rain chances rise to 30-50% and on
Sunday through Wednesday rain chances increase 50-70%.

Temperatures will remain near to above normal with heat indices
through between 100 and 105 through the forecast period. Heat Risk
will be generally Moderate (level 2 out of 4) for much of the
forecast period with a Major Risk (level 3 out of 4) for portions of
the Rio Grande Valley he weekend then Heat Risk will be Minor (level
1 out of 4) to Moderate (level 2 out of 4) for much of the forecast
period.

&&

.AVIATION...
(12Z TAFS)
Issued at 615 AM CDT Wed Sep 3 2025

VFR will prevail through the forecast period at all TAF sites.
Expect light northerly winds to shift to the east by late morning
and early afternoon. Rain chances remain fairly low (less than
20%) today, with only an isolated shower or storm along the sea
breeze this afternoon.

&&

.MARINE...
Issued at 1014 PM CDT Tue Sep 2 2025

Generally favorable conditions with mostly light to moderate winds
and seas of 1 to 2 feet though the week rising to 3 to 4 feet for
the weekend. Rain and thunderstorm chances will return for the
weekend as a frontal boundary moves into central Texas. Any shower
or thunderstorm activity will lead to localized increased winds
and seas.

&&

.PRELIMINARY POINT TEMPS/POPS...
BROWNSVILLE             95  77  96  77 /  20   0  10   0
HARLINGEN               98  73  99  73 /  10   0  10   0
MCALLEN                101  77 103  78 /  10   0   0   0
RIO GRANDE CITY        102  76 104  75 /  10   0   0   0
SOUTH PADRE ISLAND      89  80  89  81 /  20   0  10  10
BAYVIEW/PORT ISABEL     93  76  94  76 /  10   0  10   0

&&

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

$$

DISCUSSION...68
AVIATION...22-Garcia