171
FXUS64 KBRO 101709
AFDBRO

Area Forecast Discussion
National Weather Service Brownsville TX
1209 PM CDT Thu Jul 10 2025

...New DISCUSSION, AVIATION, MARINE...

.DISCUSSION...
Issued at 1205 PM CDT Thu Jul 10 2025

Low rain chances (less than 20%) are expected for the duration of
the forecast period with the greatest chances of rain over the Gulf
waters or just right along the coast. The limited chances of rain
are due to the presence of Saharan dust over the region along with a
surface high pressure. However some rogue showers are possible with
the seabreeze during the afternoons each day thanks to the daytime
heating.

As for the temperatures, the highs are generally expected to remain
in the 90s for each day, however a few places in Starr and Zapata
could get into the triple digits. Due to the previously mentioned
Saharan dust in the region, the air should be drier limiting the
heat indices to a range of 105-108. Thus the heat risk for most of
the period is expected to be Moderate at the greatest. The overnight
low temperatures are expected to remain in the 70s with some places
approaching 80.


Lastly, for the beaches, with the period and wave heights increasing
slightly to 6 seconds and 3 to 4 feet, a moderate risk of rip
currents is likely to be needed for the next several days at the
Lower Texas coastal beaches.

&&

.AVIATION...
(18Z TAFS)
Issued at 1205 PM CDT Thu Jul 10 2025

Mostly VFR conditions are expected for the period, however a mid-
level cloud deck is also expected to continue through the TAF
cycle. Southeasterly winds should persist through the period as
well with winds gusting up to 25 knots at times. The wind gusts
should subside during the evening, but are expected to return
tomorrow around the late morning hours.

&&

.MARINE...
Issued at 1205 PM CDT Thu Jul 10 2025

The influences of surface high pressure over the Lower
Texas coast will allow for generally favorable conditions to
continue with seas around 2 to 4 feet through next week. There is a
brief window of time for Small Craft Exercise Caution on Friday and
Saturday afternoon for a few hours due to some gusty winds for the
Laguna Madre and the Nearshore Gulf waters.

&&

.PRELIMINARY POINT TEMPS/POPS...
BROWNSVILLE             79  92  80  92 /   0  10   0  10
HARLINGEN               76  94  77  95 /   0  10   0  10
MCALLEN                 78  96  80  96 /   0  10   0  10
RIO GRANDE CITY         76  97  77  96 /   0  10   0  10
SOUTH PADRE ISLAND      80  87  80  87 /   0  10   0  10
BAYVIEW/PORT ISABEL     78  91  79  91 /   0  10   0  10

&&

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

$$

SHORT TERM...64-Katz
LONG TERM....64-Katz
AVIATION...64-Katz