374
FXUS64 KBRO 021719
AFDBRO
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1219 PM CDT SUN AUG 2 2026
..NEW DISCUSSION, AVIATION, MARINE
KEY MESSAGES
UPDATED AT 1207 PM CDT SUN AUG 2 2026
- A HEAT ADVISORY IS IN EFFECT FOR INLAND TO COASTAL KENEDY, WILLACY,
AND CAMERON COUNTIES FROM 11 AM TO 6 PM SUNDAY FOR HEAT INDICES
BETWEEN 111-113 DEGREES.
- LOW TO MEDIUM (15 TO 50%) CHANCE OF ISOLATED SHOWERS AND THUNDERSTORMS
TODAY, MAINLY WEST OF US281.
- HOT WILL CONTINUE THIS WEEK WITH HEAT INDICES BETWEEN 105-110F,
POTENTIALLY HIGHER, AND A MAJOR TO EXTREME RISK OF HEAT RELATED
ILLNESS.
DISCUSSION
ISSUED AT 1207 PM CDT SUN AUG 2 2026
A COLD FRONT SAGGING SOUTH TODAY WILL LEAD TO SOME ISOLATED TO
SCATTERED SHOWERS AND THUNDERSTORMS LATER THIS AFTERNOON INTO THIS
EVENING. GREATEST CHANCES WILL BE LATE THIS AFTERNOON INTO THE
EVENING IN THE RIO GRANDE PLAINS (40-50%) WITH LOWER CHANCES
EASTWARD TO US281 (15-35%). COULD SEE SOME ISOLATED ACTIVITY EAST
OF US281 BUT CHANCES REMAIN LESS THAN 15%. THE FRONT WILL LIFT
NORTHEAST LATER TONIGHT INTO MONDAY AND THOUGH THE REST OF THE
FORECAST REMAINS GENERALLY RAIN FREE, CAN NOT RULE OUT AN
AFTERNOON SEABREEZE SHOWER/THUNDERSTORM.
ONCE AGAIN, THE HEAT IS ON. TODAY THERE IS A HEAT ADVISORY IN
PLACE FOR INLAND TO COASTAL KENEDY, WILLACY, AND CAMERON COUNTIES
UNTIL 6 PM TONIGHT FOR HEAT INDICES BETWEEN 111-113 DEGREES.
TEMPERATURES WILL REMAIN IN THE UPPER 90S AND LOW 100S FOR THE
REMAINDER OF THE FORECAST PERIOD WITH HEAT INDICES BETWEEN 105 AND
110 DEGREES. SPECIAL WEATHER STATEMENTS WILL LIKELY BE NEEDED
DAILY, BUT COULD ALSO SEE SOME MORE HEAT ADVISORIES.
THERE IS A MAJOR (LEVEL 3 OF 4) WITH POCKETS OF EXTREME (LEVEL 4
OF 4) HEAT RISK EVERY AFTERNOON INTO AT LEAST TUESDAY, WITH LITTLE
TO NO RELIEF EACH NIGHT.
AVIATION
(18Z TAFS)
ISSUED AT 1207 PM CDT SUN AUG 2 2026
VFR CONDITIONS WILL PREVAIL THROUGH THE TAF PERIOD. THERE IS A
VERY LOW CHANCE OF AN ISOLATED SHOWER OR THUNDERSTORM THAT MAY
BRIEFLY AFFECT THE AERODROMES, BUT CONFIDENCE IS LOW ON
PROBABILITY AND TIMING THUS DID NOT INCLUDE IN THE TAF PACKAGE.
MARINE
ISSUED AT 1207 PM CDT SUN AUG 2 2026
AN ENHANCED PRESSURE GRADIENT ALONG THE IMMEDIATE COAST WILL RESULT
IN DAILY SMALL CRAFT EXERCISE CAUTION CONDITIONS ALONG THE LAGUNA
MADRE. OTHERWISE, EXPECT LIGHT TO MODERATE SOUTHEASTERLY WINDS WITH
2 TO 3 FT SEAS AND 5 TO 6 SECOND PERIODS.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 79 97 81 97 / 0 0 0 0
HARLINGEN 76 101 77 101 / 0 0 0 0
MCALLEN 79 103 81 103 / 20 0 0 0
RIO GRANDE CITY 78 103 79 103 / 50 0 0 0
SOUTH PADRE ISLAND 80 89 81 89 / 0 0 0 0
BAYVIEW/PORT ISABEL 78 96 79 96 / 0 0 0 0
BRO WATCHES/WARNINGS/ADVISORIES
TX...HEAT ADVISORY UNTIL 6 PM CDT THIS EVENING FOR TXZ251-254-255-351-
354-355.
GM...NONE.
SHORT TERM...68
LONG TERM....68
AVIATION...68
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page