988 
FXUS64 KBRO 212302 AAB
AFDBRO

Area Forecast Discussion...UPDATED
National Weather Service Brownsville TX
602 PM CDT Sat Jun 21 2025

...New AVIATION...

.SHORT TERM...
(Tonight through Sunday night)
Issued at 1221 PM CDT Sat Jun 21 2025

Southeasterly winds and tropical moisture will support continued 
rain chances tonight into tomorrow, with around a 20-30% chance 
mostly east of I-69C.  This precipitation is expected to be isolated 
to scattered, with some areas receiving locally heavy rainfall and 
lightning with any thunderstorms that happen to form.  Low 
temperatures tonight and tomorrow night are expected to get down 
into the mid-70s with calm winds and nearly saturated air.  Skies 
should be mostly cloudy. High temperatures tomorrow should reach the 
mid-90s with partly cloudy skies and heat indices getting up to 
around 100. Beachgoers should exercise caution and remain 
situationally aware if swimming, as there is a moderate risk of rip 
currents. 

&&

.LONG TERM...
(Monday through next Saturday)
Issued at 1221 PM CDT Sat Jun 21 2025

Unsettled weather is expected to continue through all of next week, 
as tropical moisture will continue to pour into the region, bringing 
daily rain chances (around 20-30% each day) mainly east of I-69E. 
Isolated to scattered showers and/or thunderstorms are expected, 
particularly along the sea breeze front.  Temperatures will also 
remain steady throughout the week as well, with highs getting up 
into the mid-90s and lows getting down into the mid-to-upper-70s. 
Humid conditions will also result from continued tropical moisture, 
and heat indices could be ten or more degrees hotter-feeling than 
the actual air temperatures.

&&

.AVIATION...
(00Z TAFS)
Issued at 559 PM CDT Sat Jun 21 2025

VFR conditions will prevail through the TAF period. A passing
shower is still possible this evening, though confidence remains
low that any aerodrome will be directly impacted. Rain chances do
increase on Sunday, with BRO being the most likely to see
precipitation, which could lower visibilities to MVFR/IFR, bring heavy
rain, cloud to ground lightning, and gusty winds. 

&&

.MARINE...
Issued at 1221 PM CDT Sat Jun 21 2025

Moderate seas with potential Small Craft Exercise Caution conditions 
are expected for the next few days, with wave heights between 3-5 
feet expected in the Gulf. By midweek next week, winds should be 
lower and seas should calm to between 2-4 feet, making marine 
conditions more favorable. 

&&

.PRELIMINARY POINT TEMPS/POPS...
BROWNSVILLE             78  92  78  92 /  20  30  10  30 
HARLINGEN               75  93  75  93 /  10  20  10  20 
MCALLEN                 77  95  77  97 /  10  20   0  10 
RIO GRANDE CITY         75  92  75  94 /  10  10   0  10 
SOUTH PADRE ISLAND      80  87  80  87 /  20  20  20  20 
BAYVIEW/PORT ISABEL     78  90  78  90 /  10  20  10  20 

&&

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

$$

SHORT TERM...55
LONG TERM....55
AVIATION...68