Brownsville, Texas 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

490
FXUS64 KBRO 220427 AAB
AFDBRO

Area Forecast Discussion...UPDATED
National Weather Service Brownsville TX
1027 PM CST Fri Feb 21 2025

...New AVIATION...

.SHORT TERM...
(Tonight through Saturday night)
Issued at 235 PM CST Fri Feb 21 2025

While the temperatures are expected to be cooler than normal, there
is a slight increase in the wind chills for tonight to where they
will be above the low 30s for Deep South Texas and the Rio Grande
Valley. As a coastal trough continues to impact the area brining
light rain to the region during the overnight hours, the chances of
rain are expected to diminish west to east during the day. The
greatest chance for rain during the day tomorrow are expected to be
right along the coast. Rain chances for tomorrow and tomorrow night
are expected to be low (30% or less) for the region. While the rain
chances are expected to go down, the cloud coverage is expected to
remain mostly overcast as the northerly to northwesterly winds
persist over the region.

As for the temperatures, tonight the low temperatures are expected
to be in the range of mid 30s in the Northern Ranchlands to lower
40s in the Lower Valley. For Saturday, the high temperatures are
expected to range from the mid 40s in the Northern Ranchlands to the
upper 40s in the Lower Valley.

Finally, the current active hazards include a cold weather advisory
that is current in place until 6 PM this evening as the northerly
winds should weaken enough to allow for that to expire within the
next couple of hours. Elevated seas along the Lower Texas Coast will
continue to produce a High Risk of Rip Currents at the local beaches
through Saturday.

&&

.LONG TERM...
(Sunday through next Friday)
Issued at 235 PM CST Fri Feb 21 2025

Key Messages:

- Warming trend through much of the period.
- A cold front expected towards the end of next week.

To start the long term period, a coastal low along the western Gulf
will begin to move northeast leading to drying conditions across
Deep South Texas and the Rio Grande Valley. Additionally,
temperatures will begin to warm back up next week. While Sunday will
still remain cool with highs in the 60s, temperatures will warm into
the 70s and 80s beginning on Monday. Low temperatures will remain in
the 40s and 50s through Monday morning, then begin to warm through
the period to near or just above seasonal norms. Radiational cooling
will allow for patchy fog development Sunday night into early Monday
morning and again Monday night into Tuesday morning.

Our next cold front is expected to move through Deep South Texas mid
to late week. At this time the front looks to remain dry and not
affect temperatures too much with highs on Thursday and Friday
generally in the mid to upper 70s.

Will have to continue to monitor for the potential of enhanced fire
weather danger in wake of the front. 20 ft winds only pick up
briefly but with humidity levels falling, cured fuels, and drought
conditions, this could lead to fire weather concerns on Thursday,
primarily for northwestern portions of the CWA.

&&

.AVIATION...
(06Z TAFS)
Issued at 1022 PM CST Fri Feb 21 2025

IFR conditions are expected at all airports overnight, with KBRO
possibly experiencing moments of LIFR due to lowered ceilings
between 06-10z. IFR conditions will persist into tomorrow through
the remainder of the TAF period except for MFE which may see a
return to MVFR conditions by 21z. Winds are northerly and gusty
but gusts should taper by the end of the TAF period.

&&

.MARINE...
Issued at 235 PM CST Fri Feb 21 2025

Tonight through Saturday Night....A mixture of adverse and hazardous
conditions are expected to persist through tonight for the Gulf
waters as a Small Craft Advisory is in effect through tomorrow.
Small Craft Exercise Caution conditions are possible on the Laguna
Madre for short periods of times as winds could become elevated.
With a coastal trough expected to impact the Lower Texas Coast,
showers are expected to also continue through Saturday night as
well.

Sunday through Thursday...Small Craft will need to continue
to Exercise Caution on the Gulf waters on Sunday. As the coastal low
moves northeast, conditions will improve with favorable conditions
returning Sunday night. Generally favorable conditions will continue
through Wednesday. A front expected to move through the waters off
the lower Texas coast Wednesday night/early Thursday could lead to
borderline Caution conditons on Thursday, mainly for the offshore
waters.

&&

.PRELIMINARY POINT TEMPS/POPS...
BROWNSVILLE             40  46  44  63 /  50  40  20  10
HARLINGEN               38  46  42  61 /  50  50  20  10
MCALLEN                 38  47  45  65 /  50  40  10   0
RIO GRANDE CITY         36  46  42  68 /  50  30  10   0
SOUTH PADRE ISLAND      50  52  47  59 /  60  50  30  20
BAYVIEW/PORT ISABEL     44  48  43  61 /  60  50  30  10

&&

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

GM...Small Craft Advisory until 6 PM CST Saturday for GMZ150-155-170-
     175.

&&

$$

SHORT TERM...64-Katz
LONG TERM....68-McGinnis
AVIATION...55-MM