Keller Corner, Texas Weather Forecast Discussion

143
FXUS64 KBRO 110526
AFDBRO
Area Forecast Discussion
National Weather Service Brownsville TX
1226 AM CDT Thu Sep 11 2025
...New AVIATION...
.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...
(06Z TAFS)
Issued at 1225 AM CDT Thu Sep 11 2025
Through 06z Friday....VFR conditions will continue for the terminals
through much of the 06z TAF period, through there could be a few
MVFR clouds around. Isolated to scattered showers and thundershowers
are possible again this morning into this afternoon. Have VCSH
and Prob30 groups in place to acknowledge this possibility. Any
showers or storms will have the capabilities of briefly reducing
cigs/vsbys to MVFR/IFR levels.
Calm winds overnight will pick up out of the east later this morning
into this afternoon with magnitudes between 5-10 kts. Later this
evening/tonight, winds will trend back towards light and variable to
calm.
&&
.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             92  78  91  78 /  50  40  60  50
HARLINGEN               94  74  93  74 /  40  30  50  30
MCALLEN                 96  77  95  77 /  50  20  70  30
RIO GRANDE CITY         96  75  95  74 /  40  20  70  20
SOUTH PADRE ISLAND      88  81  87  82 /  40  60  60  60
BAYVIEW/PORT ISABEL     91  77  90  77 /  30  60  60  50
&&
.BRO WATCHES/WARNINGS/ADVISORIES...
TX...None.
GM...None.
&&
$$
SHORT TERM...68-McGinnis
LONG TERM....68-McGinnis
AVIATION...23-Evbuoma

NWS BRO Office Area Forecast Discussion