Flowella, Texas Weather Forecast Discussion

139
FXUS64 KBRO 261750 AAA
AFDBRO
Area Forecast Discussion...UPDATED
National Weather Service Brownsville TX
1250 PM CDT Fri Sep 26 2025
...New KEY MESSAGES...
.KEY MESSAGES...
Updated at 1248 PM CDT Fri Sep 26 2025
- Seasonable and mostly precipitation free weather is expected
   throughout the weekend (though a shower or two near the coast
   cannot be ruled out).
- A small chance (10-20%) for sea breeze showers and
   thunderstorms should begin Monday and continue throughout the
   week for areas E of US 281/I-69C.
- Seasonable temperatures are expected, with a Minor (level 1 of
   4) Heat Risk throughout the weekend into next week.
&&
.DISCUSSION...
Issued at 1212 PM CDT Fri Sep 26 2025
A weak cold front has moved through the area and stalled just to the
south of the Rio Grande Valley, which has shifted winds to a more
northerly direction. This will advect slightly cooler and drier
air to the region, decreasing precipitation chances over the
weekend into next week. Conditions should be overall dry
throughout Deep South Texas over the weekend, with a small chance
(15% or less) of an isolated shower or two along the coast. On
Monday, a little more moisture returns to the region as the
frontal boundary exits the area and pushes off to the east. This
slightly increased moisture, along with daily diurnal heating,
will result in increased chances (around 10-20%) of a few isolated
afternoon showers and thunderstorms forming along the sea breeze
boundary for areas east of US 281/I-69C. This pattern of overall
dryness with a few possibly afternoon sea breeze showers should
continue from Monday through the end of next week.
Seasonal temperatures for Deep South Texas are expected, with
daily highs getting up into the low to mid 90s. Areas in the
Western Ranchlands could see highs in the upper 90s, particularly
around the end of next week. Low temperatures should get down
into the low to mid 70s for the Rio Grande Valley, with areas in
the upper Ranchlands seeing lows in the upper 60s. Because the
front has pushed some of the subtropical humidity out of the area
for the time being, Heat Risk is expected to remain Minor (level 1
of 4) thoughout the weekend into next week. Overall mostly sunny
to partly cloudy skies are expected throughout the upcoming week.
&&
.AVIATION...
(18Z TAFS)
Issued at 1212 PM CDT Fri Sep 26 2025
VFR conditions with clear skies and light to moderate northeasterly
winds are expected throughout the TAF period.
&&
.MARINE...
Issued at 1212 PM CDT Fri Sep 26 2025
Marine conditions are expected to be favorable for the next week.
The frontal passage has shifted winds to a more northerly
direction, and the winds are expected to be light to moderate and
remain east-northeasterly throughout the week. In addition, low
waveheights between 1-3 feet are expected throughout the forecast
period.
&&
.PRELIMINARY POINT TEMPS/POPS...
BROWNSVILLE             75  91  72  89 /   0   0  10  20
HARLINGEN               71  94  67  91 /   0   0   0  10
MCALLEN                 75  97  72  94 /   0   0   0   0
RIO GRANDE CITY         73  97  68  94 /   0   0   0   0
SOUTH PADRE ISLAND      81  87  78  86 /  10   0  10  20
BAYVIEW/PORT ISABEL     75  89  73  88 /   0   0  10  10
&&
.BRO WATCHES/WARNINGS/ADVISORIES...
TX...None.
GM...None.
&&
$$
SHORT TERM...55
LONG TERM....55
AVIATION...55

NWS BRO Office Area Forecast Discussion