Area Forecast Discussion
Issued by NWS Brownsville, TX

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903
FXUS64 KBRO 221120 AAA
AFDBRO

Area Forecast Discussion...UPDATED
National Weather Service Brownsville TX
520 AM CST Sat Nov 22 2025

...New AVIATION...

.KEY MESSAGES...
Updated at 517 AM CST Sat Nov 22 2025

- Above normal temperatures are expected through much of the forecast
  period before a cold front moves through next week.

- A medium chance (40-60%) of showers and thunderstorms are
  expected on Saturday. Otherwise nearly daily low to medium
  (20-60%) chances for showers and thunderstorms are expected.

- Adverse marine conditions are possible Sunday into Monday due to
  moderate to breezy winds.

- An elevated risk of rip currents will prevail through next week.

&&

.DISCUSSION...
Issued at 1022 PM CST Fri Nov 21 2025

The forecast remains on track. A cold front will continue to push
east this weekend and stall either across the Brush country or
north of the CWA into Sunday before lifting off to the northeast
as a warm front. Rain chances will begin to increase late tonight
and especially into Saturday with a 40-60% chance through the
afternoon. Will continue to see low to medium chances of precip on
Sunday (generally 20-50%) as the front moves northeast out of the
region with dry conditions expected on Monday. A secondary cold
front will push into western Texas Sunday into Monday which will
bring breezy conditions, mainly along the coast. This front makes
its way to Deep South Texas and the Rio Grande Valley Monday into
Tuesday, with rain chances returning Tuesday afternoon. The front
will push off to the south Wendesday into Thursday with coastal
troughing keeping lingering precip chances through Friday.

Temperatures will remain above normal into early next week. The
secondary front will finally bring a touch of fall back to the
region with high temperatures in the upper 70s to low 80s Wednesday
through Friday.

At area beaches an elevated risk of rip currents will prevail
through next week.

&&

.AVIATION...
(12Z TAFS)
Issued at 517 AM CST Sat Nov 22 2025

Moisture and cloud cover working north into the RGV, with
occasional MVFR to IFR ceilings at MFE early this morning.
Generally expect occasional showers this morning into this
afternoon with an isolated thunderstorm or two. MVFR ceilings
likely increase tonight across Deep South Texas.

&&

.MARINE...
Issued at 1022 PM CST Fri Nov 21 2025

A front passing to the north of the area will lead to an
increased pressure gradient Sunday into Monday with Small Craft
Advisories possible Sunday night through Monday morning. Otherwise
generally favorable conditions will prevail. Showers and
thunderstorms will be possible through much of the period with
locally enhanced winds and seas.

&&

.PRELIMINARY POINT TEMPS/POPS...
BROWNSVILLE             88  73  86  73 /  50  20  20   0
HARLINGEN               88  68  87  70 /  60  20  30   0
MCALLEN                 90  72  90  73 /  50  20  20   0
RIO GRANDE CITY         88  70  90  70 /  40  30  20   0
SOUTH PADRE ISLAND      83  76  82  76 /  50  30  30   0
BAYVIEW/PORT ISABEL     85  71  85  71 /  50  20  30   0

&&

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

$$

SHORT TERM...68-McGinnis
LONG TERM....68-McGinnis
AVIATION...56-Hallman