Rancho Viejo, Texas Weather Forecast Discussion

673
FXUS64 KBRO 101736
AFDBRO
Area Forecast Discussion
National Weather Service Brownsville TX
1236 PM CDT Wed Sep 10 2025
...New DISCUSSION, AVIATION, MARINE...
.DISCUSSION...
Issued at 1236 PM CDT Wed Sep 10 2025
Deep South Texas will remain in a somewhat unsettled weather
pattern through the end of the week, as the region remains under
the influence of a weak stationary boundary and humid airmass. As
weak disturbances traversing the periphery of high pressure aloft
interact with these ingredients, isolated to scattered showers and
thunderstorms are expected each day. The NBM continues to overdo
PoPs, and have opted to lower them to around 20-50% for this
afternoon through Friday afternoon. In general, the best timing
for any thunderstorm development will coincide with daytime
heating - late morning into the afternoon hours - but given the
set up, isolated to scattered showers may develop during the
pre dawn hours as well. Pockets of brief heavy rainfall cannot be
ruled out with any robust showers or thunderstorms. Rain chances
look to decrease over the weekend as subsidence increases with
building high pressure.
Otherwise, expect temperatures to remain near normal through next
week with highs in the low to mid 90s. Heat index values are
expected to range from around 100-105 degrees each afternoon.
&&
.AVIATION...
(18Z TAFS)
Issued at 1236 PM CDT Wed Sep 10 2025
VFR will prevail through the forecast period at all TAF sites.
However, brief periods of MVFR ceilings/visibility, gusty winds,
lightning and/or brief heavy rainfall cannot be ruled out this
afternoon as isolated to scattered convection develops. Confidence
on the exact location and timing is low, but have opted to include
VCSH/VCTS for this afternoon. Amendments may be needed for any
isolated thunderstorms that develop near the terminals.
&&
.MARINE...
Issued at 1236 PM CDT Wed Sep 10 2025
Generally favorable marine conditions will prevail with light to
moderate easterly winds and low to moderate seas. Low to medium
rain chances continue through the end of the week over the Gulf
waters and Laguna Madre. Locally enhanced winds and seas are
likely within any showers and thunderstorms.
&&
.PRELIMINARY POINT TEMPS/POPS...
BROWNSVILLE             78  92  77  91 /  40  50  40  50
HARLINGEN               74  93  74  93 /  30  50  40  50
MCALLEN                 78  95  77  96 /  30  50  40  50
RIO GRANDE CITY         75  95  74  95 /  20  50  30  50
SOUTH PADRE ISLAND      81  88  81  88 /  50  60  40  50
BAYVIEW/PORT ISABEL     78  90  77  90 /  40  50  40  50
&&
.BRO WATCHES/WARNINGS/ADVISORIES...
TX...None.
GM...None.
&&
$$
SHORT TERM...22-Garcia
LONG TERM....22-Garcia
AVIATION...22-Garcia

NWS BRO Office Area Forecast Discussion