140
FXUS64 KBRO 251726
AFDBRO

Area Forecast Discussion
National Weather Service Brownsville TX
1226 PM CDT Wed Jun 25 2025

...New SHORT TERM, LONG TERM, AVIATION, MARINE...

.SHORT TERM...
(This Afternoon through Thursday night)
Issued at 1225 PM CDT Wed Jun 25 2025

Similar to previous days, the combination of daytime heating and
favorable moisture content will result in another afternoon with
isolated to scattered showers and thunderstorms. While severe
weather is not expected, strong thunderstorms will be capable of
producing gusty winds to 40 MPH and lightning. Any activity will
be able to produce brief, locally heavy rain. Otherwise, activity
should diminish with the loss of daytime heating. Patchy fog may
develop once again tonight as winds become light and skies remain
generally clear, but should clear out shortly after sunrise. High
temperatures will remain near to slightly above normal in the low
to mid 90s. In combination with the humidity, heat index values
will range from 100-106 degrees each afternoon.

&&

.LONG TERM...
(Friday through next Wednesday)
Issued at 1225 PM CDT Wed Jun 25 2025

Daily low to medium (20-50%) precipitation chances continue
through early next week across Deep South Texas as the region
remains within well established low level southerly to
southeasterly flow. Through the end of the week, expecting each
afternoon to remain in isolated coverage, but as moisture content
looks to increase through the weekend coverage may become more
scattered. Most activity will remain diurnally-driven, peaking
during the afternoon hours and dissipating with the loss of
daytime heating. Some locally heavy rainfall cannot be ruled out
with any strong thunderstorms, in addition to gusty winds and
lightning. Otherwise, expect near to slightly above normal
temperatures region wide.

&&

.AVIATION...
(18Z TAFS)
Issued at 1225 PM CDT Wed Jun 25 2025

VFR will prevail through the forecast period, although brief
reductions in visibility during the early morning hours on
Thursday cannot be ruled out as patchy fog develops across the
area. Confidence is low at this time, but subsequent TAF issuances
may warrant the need of prevailing MVFR/IFR visibility. Isolated
to scattered convection may develop once again this afternoon, and
at this time only opted to include VCTS at MFE. Otherwise, expect
southeast winds around 10-15 knots will occasional higher gusts to
prevail through this evening before falling below 5-10 knots
tonight.

&&

.MARINE...
Issued at 1225 PM CDT Wed Jun 25 2025

Generally favorable marine conditions will prevail through the
forecast period with low to moderate seas and light to moderate
southeast winds. Occasional gusts upwards cannot be ruled out
during the afternoon hours due to a locally enhanced pressure
gradient. Otherwise, daily chances for isolated to scattered
showers and thunderstorms will continue through the weekend.

&&

.PRELIMINARY POINT TEMPS/POPS...
BROWNSVILLE             77  92  77  93 /  10  30  10  20
HARLINGEN               74  93  74  94 /  10  30   0  10
MCALLEN                 76  96  77  97 /   0  20   0  10
RIO GRANDE CITY         74  93  74  94 /   0  20   0  10
SOUTH PADRE ISLAND      79  86  79  87 /  20  20  10  20
BAYVIEW/PORT ISABEL     76  91  76  91 /  10  20  10  20

&&

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

$$

SHORT TERM...22-Garcia
LONG TERM....22-Garcia
AVIATION...22-Garcia