Brownsville, Texas 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

009
FXUS64 KBRO 211124 AAA
AFDBRO

Area Forecast Discussion...UPDATED
National Weather Service Brownsville TX
524 AM CST Thu Nov 21 2024

...New AVIATION...

.SHORT TERM...
(Today through Friday)
Issued at 329 AM CST Thu Nov 21 2024

Temperatures starting to warm will be the general trend of the short
term forecast as the northerly winds will continue to weaken and
eventually turn towards the east while remaining light. Thanks to
the surface high pressure and a mostly dry environment, chances of
rain are expected to be very low. With mostly clear skies, the high
temperatures are expected to be mostly in the upper 70s. However
some places in the Middle and Lower Valley could get into the lower
80s for highs today. Moving into tonight, the low temperatures are
expected to be in the range of upper 40s to lower 50s for most of
the region. Once again, parts of the Middle and Lower Valley
continue to be the exception to the trend where the low temperatures
could actually be in the mid 50s. Going into the day for Friday, the
pleasant conditions are expected to continue with mostly clear skies
and light easterly winds. The high temperatures for Friday are
expected to be a bit warmer with most of the high temperatures in
the lower 80s. However a few places in the Northern Ranchlands could
see high temperatures a bit lower in the upper 70s.

As for the hazards along the coast, with the winds and seas
continuing the subside during the day the coastal hazards should
expire soon. The High Risk of Rip Currents is expected to expire by
this evening and the Coastal Flood Advisory is set to expire by 6 AM
this morning.

&&

.LONG TERM...
(Friday Night through Wednesday)
Issued at 329 AM CST Thu Nov 21 2024

500 mb high pressure centered off of the west coast of Mexico will
be the dominant feature over the BRO CWFA during the period. A
mid-level flow from the northwest will gradually transition to a
more zonal flow, resulting in dry weather for Deep South Texas
and the Rio Grande Valley. Unfortunately, this will also produce
gradually warming daytime high and overnight low temperatures,
with well above normal values likely.

Additionally, periods of a more intense pressure gradient at the
surface will lead to increasing winds and building seas, with a
Moderate to High Risk of rip currents at the local beaches for
Sunday and Monday and again on Wednesday.

&&

.AVIATION...
(12Z TAFS)
Issued at 514 AM CST Thu Nov 21 2024

VFR conditions are expected to persist at all TAF sites through
the TAF cycle with mostly clear skies and light northerly winds
that will shift more towards the east while remaining light during
the period.

&&

.MARINE...
(Today through Friday)
Issued at 329 AM CST Thu Nov 21 2024

With the winds and seas continuing to come down, mostly favorable
conditions are expected for today through Friday. While today
will see light northerly winds and low to moderate seas, however
by late tonight, the seas will continue to diminish and the
northerly winds will shift toward the east. As such, by Friday,
there will be light easterly winds and low seas.

(Friday Night through Wednesday)
A variable pressure gradient over the western Gulf of Mexico will
produce period of adverse marine conditions along the Lower Texas
Coast through the period. The best chance for Small Craft Should
Exercise Caution to Small Craft Advisory will occur Saturday night
through Sunday night, and again on Wednesday. Outside of these
time periods, light to moderate winds and low to moderate seas
will occur.

&&

.PRELIMINARY POINT TEMPS/POPS...
BROWNSVILLE             77  57  80  62 /   0   0   0   0
HARLINGEN               78  52  81  56 /   0   0   0   0
MCALLEN                 80  55  84  59 /   0   0   0   0
RIO GRANDE CITY         77  50  81  56 /   0   0   0   0
SOUTH PADRE ISLAND      75  68  76  70 /   0   0   0   0
BAYVIEW/PORT ISABEL     76  57  78  62 /   0   0   0   0

&&

.BRO WATCHES/WARNINGS/ADVISORIES...
TX...High Rip Current Risk through this afternoon for TXZ451-454-455.

     Coastal Flood Advisory until 6 AM CST early this morning for
     TXZ451-454-455.

GM...None.
&&

$$

SHORT TERM...64-Katz
LONG TERM....66-Tomaselli
AVIATION...64-Katz