Show Area Forecast Discussion - Brownsville, TX (Brownsville, TX Area) Selection:
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#1284489 (Received by flhurricane at: 12:39 PM 03.Nov.2026) AFDBRO
Area Forecast Discussion
National Weather Service Brownsville TX
1125 AM CST Tue Nov 3 2026
...New DISCUSSION, AVIATION, MARINE...
.KEY MESSAGES...
Updated at 1113 AM CST Tue Nov 3 2026
- Two cold fronts expected this week.
- Above normal temperatures expected today, potentially record
breaking, before cooler air arrives.
- Low to medium rain chances expected through much of the period.
&&
.DISCUSSION...
Issued at 1113 AM CST Tue Nov 3 2026
One of two cold fronts will move through Deep South Texas later
today into tonight. Unseasonably warm temperatures are expected
today with highs in the upper 80s to mid 90s. Compressional
heating ahead of the front could lead to potential record breaking
temperatures in the mid to lower Valley this afternoon. As the
front pushes through, rain chances will increase from west to
east. Highest rain chances will be along the coast early
Wednesday morning.
Temperatures on Wednesday will be near normal with dry conditions
before another cold front moves through late Thursday/early
Friday. This secondary front will increase rain chances once again
Thursday through the weekend. Temperatures will be much cooler
beginning Friday with highs in the 80s and by this weekend mid to
upper 70s and possibly a few low 80s. Overnight temperatures will
fall into the 50s across much of the area by Saturday night.
&&
.AVIATION...
(18Z TAFS)
Issued at 1113 AM CST Tue Nov 3 2026
VFR conditions will prevail through the TAF period. Tonight rain
chances increase with the potential for brief MVFR conditions with
any passing showers or thunderstorms. Winds are expected to remain
light.
&&
.MARINE...
Issued at 1113 AM CST Tue Nov 3 2026
Generally favorable conditions will prevail through much of the
week. A cold front later today will bring chances of rain and
thunderstorms that could lead to locally enhanced winds and seas.
Another cold front moving through late week will lead to more
hazardous conditions with Small Craft Advisories likely needed this
weekend. Additional showers and thunderstorms are expected
Thursday through the weekend that could contribute to adverse
marine conditions.
&&
.PRELIMINARY POINT TEMPS/POPS...
BROWNSVILLE 92 71 83 72 / 10 50 10 0
HARLINGEN 93 67 82 68 / 20 40 10 0
MCALLEN 94 69 86 71 / 10 20 0 0
RIO GRANDE CITY 90 64 85 67 / 0 0 0 0
SOUTH PADRE ISLAND 84 74 78 74 / 10 60 10 0
BAYVIEW/PORT ISABEL 90 70 80 70 / 20 50 10 0
&&
.BRO WATCHES/WARNINGS/ADVISORIES...
TX...None.
GM...None.
&&
$$
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#1284465 (Received by flhurricane at: 6:18 AM 03.Nov.2026) AFDBRO
Area Forecast Discussion...UPDATED
National Weather Service Brownsville TX
502 AM CST Tue Nov 3 2026
...New AVIATION...
.KEY MESSAGES...
Updated at 459 AM CST Tue Nov 3 2026
- Unseasonably warm on Tuesday ahead of the cool front with
daytime high temperatures ranging between the upper 80s to mid
90s.
- First cool front arrives Tuesday evening; low-medium (20-40%)
rain chances Tuesday afternoon-Tuesday night; best chances
along and east of IH-69E/US 77.
- Second cool front approaches before potentially washing out
later this week into next weekend bringing additional chances
(30-70%) for rain Thursday evening through next Sunday.
- Temperatures trend from seasonable to unseasonably cool Friday
through next Monday (i.e. high temperatures in the mid 70s to
mid 80s).
&&
.DISCUSSION...
Issued at 1045 PM CST Mon Nov 2 2026
A pair of cool fronts will be the primary drivers of our weather
pattern through next weekend. The first of two cool fronts is set to
arrive Tuesday afternoon/evening from north to south. Before its
arrival, temperatures will have the opportunity to climb into the
low to mid 90s most places. The cool front will be rather moisture
starved. However, there could be enough sfc convergence and low
level moisture ahead of the front to ignite a few showers Tuesday
afternoon into Tuesday night. Given the situation, we`ve still
maintained low-medium (20-60%) chances/PoPs favoring areas near
the coast and over the Northern Ranchlands. Categorical chances
exists over the Gulf Waters.
Behind the cool front, cooler and drier air will advect into the
region. On Wednesday, temperature anomalies will return to near
seasonable levels with highs in the low to mid 80s. Rain-free
weather conditions return on Wednesday behind the aforementioned
cool front. Temperatures briefly moderate Thursday with high
temperatures in the upper 80s to lower 90s.
Our next chance for showers and thunderstorms arrive Thursday night
and persist through Sunday. This is in response to another cool
front, that may wash out before making it into Deep South Texas,
approaches the region. Ahead of the cool front, forecast models
continue to indicate a weak shortwave trough developing nearby. If
realized, shower and thunderstorm chances will increase over the
region Thursday night through Sunday. Currently, we have low-medium
(30-70%) PoPs/chances for showers and thunderstorms developing with
the best chances (highest probabilities) generally being located
closer the Lower Texas Coast, though there will be an areawide
threat.
Seasonable to unseasonably cool temperatures will develop Thursday
night through early next week. Finally, with these cool fronts, we
will have to continue to keep close watch on the potential for
coastal/marine hazards through early next week (see MARINE SECTION
for more details).
&&
.AVIATION...
(12Z TAFS)
Issued at 459 AM CST Tue Nov 3 2026
Generally VFR will prevail at the aerodromes through the next 24
hours. The passage of a cold front today will produce veering
winds. A TEMPO has been included for a brief possibility of
convection associated with the frontal passage.
&&
.MARINE...
Issued at 1045 PM CST Mon Nov 2 2026
Low to moderate winds and seas Tuesday will give way to Small Craft
Exercise Caution (SCEC) conditions Tuesday night into Wednesday in
response to the first cool front. Low to moderate winds and seas
return Wednesday night through Friday night. SCEC conditions return
Saturday with Small Craft Advisory conditions developing Saturday
night into Sunday in response to the second cool front.
&&
.PRELIMINARY POINT TEMPS/POPS...
BROWNSVILLE 92 72 83 73 / 10 60 10 0
HARLINGEN 93 69 83 70 / 30 40 10 0
MCALLEN 94 71 87 73 / 10 20 0 0
RIO GRANDE CITY 90 66 86 69 / 10 0 0 0
SOUTH PADRE ISLAND 84 74 79 75 / 10 70 10 0
BAYVIEW/PORT ISABEL 90 70 81 71 / 20 60 10 0
&&
.BRO WATCHES/WARNINGS/ADVISORIES...None.
&&
$$
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