956
FXUS64 KBRO 280538 AAA
AFDBRO
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1238 AM CDT SUN JUN 28 2026
..NEW AVIATION
KEY MESSAGES
UPDATED AT 1236 AM CDT SUN JUN 28 2026
* MAINLY RAIN-FREE CONDITIONS WITH SEASONABLE TEMPERATURES WILL
PREVAIL THROUGH NEXT WEEK; LOW, NON-ZERO PROBABILITY OF A ROGUE
SEA BREEZE SHOWER OR THUNDERSTORM MID TO LATE NEXT WEEK.
* PEAK HEAT INDICES BETWEEN 100-110F DEGREES WILL RESULT IN
WIDESPREAD MODERATE (LEVEL 2 OF 4) HEAT RISK ACROSS DEEP SOUTH
TEXAS EACH DAY.
* BREEZY CONDITIONS ARE EXPECTED TO CONTINUE WITH SOUTHERLY WINDS 15-
25 MPH, GUSTING AS HIGH AS 40 MPH; WINDS COULD GUSTS OVER 40 MPH
AT TIMES, THROUGH MONDAY.
* THESE BREEZY CONDITIONS WILL RESULT IN DAY-TO-DAY OR NEAR DAY-TO-
DAY SMALL CRAFT EXERCISE CAUTION (SCEC) TO SMALL CRAFT ADVISORY
(SCA) CONDITIONS OVER THE BAY AND NEARSHORE WATERS THROUGH EARLY
NEXT WEEK.
* LIFE-THREATENING RIP AND LONGSHORE CURRENTS ARE EXPECTED TO
PERSIST AT AREA BEACHES THROUGH NEXT WEEK.
DISCUSSION
ISSUED AT 1005 PM CDT SAT JUN 27 2026
MAINLY RAIN-FREE AND AT TIMES BREEZY CONDITIONS WITH SEASONABLE
TEMPERATURES WILL BE THE THEME THROUGH THE FORECAST PERIOD OR
THROUGH NEXT WEEK. A 591-594 DAM SUB-TROPICAL HEAT RIDGE WILL MAIN
FIXTURE TO OUR DRY AND TRANQUIL WEATHER PATTERN THROUGH THE FORECAST
PERIOD.
NEXT WEEK, DEEP SOUTH TEXAS WILL SIT ON THE WEST-SOUTHWEST FLANK OF
THE ANOMALOUSLY STRONG HEAT DOME AS IT LOOKS TO SHIFT NORTHWARD OVER
THE MIDWEST/GREAT LAKES REGION, WHICH WILL RESULT IN A WIDESPREAD
HEATWAVE ACROSS THE CENTRAL AND EASTERN U.S. WITH THE HEAT RIDGE
DISPLACED TO OUR NORTH, DEEP SOUTH TEXAS WILL BE SPARED FROM THE
BRUNT OF THE HEAT WITH TEMPERATURES BEING AVERAGE FOR THIS TIME OF
YEAR. ADDITIONALLY, THE NORTHWARD DISPLACEMENT OF THE RIDGE COULD
BRING A LOW, YET NON-ZERO PROBABILITY OF ISOLATED SEA BREEZE
CONVECTION (SHOWERS AND STORMS) EACH DAY OR NEARLY EACH DAY
WEDNESDAY THROUGH FRIDAY OF NEXT WEEK.
AN ENHANCED PRESSURE GRADIENT NEAR THE SFC WILL RESULT IN BREEZY
CONDITIONS AT TIMES THROUGH THE FORECAST PERIOD. SOUTHERLY WINDS 15-
25 MPH COULD GUSTS UP TO 40 MPH NEARLY EACH DAY THROUGH MONDAY.
THERE COULD BE AN INSTANCE OR TWO WHERE WINDS GUST OVER 40 MPH
THROUGH MONDAY.
AS HIGHLIGHTED EARLIER, SINCE THE HEAT RIDGE/DOME WILL NOT BE
DIRECTLY OVERHEAD, TEMPS WILL BE SEASONABLE. DAYTIME HIGH TEMPS WILL
RANGE BETWEEN THE MID 90S CLOSE TO THE COAST TO NEAR 100F DEGREES
FAR WEST/INLAND EACH DAY. MEANWHILE, OVERNIGHT LOW TEMPERATURES WILL
BE IN THE MID 70S ACROSS THE NORTHERN RANCHLANDS TO THE UPPER
70S/LOWER 80S ALONG THE RIO GRANDE VALLEY EACH NIGHT. DESPITE THESE
SEASONABLE LEVEL TEMPERATURES, THERE WILL CONTINUE TO BE WIDESPREAD
MODERATE (LEVEL 2 OF 4) HEAT RISK ACROSS THE REGION THROUGH NEXT
WEEK WITH PEAK HEAT INDICES RANGING BETWEEN 100-110F DEGREES.
AVIATION
(06Z TAFS)
ISSUED AT 1236 AM CDT SUN JUN 28 2026
MVFR TO VFR WILL PREVAIL AT THE AERODROMES THROUGH THE NEXT 24
HOURS. MODERATE TO BREEZY CONDITIONS FOR THE NIGHTTIME HOURS WILL
BECOME WINDY DURING DAYLIGHT.
MARINE
ISSUED AT 1005 PM CDT SAT JUN 27 2026
BREEZY SOUTHEASTERLY WINDS FROM AN ENHANCED SFC PRESSURE GRADIENT
COULD RESULT IN DAY-TO-DAY OR NEAR DAY-TO-DAY SMALL CRAFT EXERCISE
CAUTION (SCEC) OR SMALL CRAFT ADVISORY (SCA) CONDITIONS MAINLY OVER
THE LAGUNA MADRE AND MAYBE THE NEARSHORE WATERS THROUGH MONDAY. WAVE
HEIGHTS OR SEAS WILL RANGE BETWEEN 3-5 FEET EACH AFTERNOON THROUGH
NEXT WEEK. THIS WILL RESULT IN MAINLY MODERATE SEAS THROUGH THE
FORECAST PERIOD TO AT TIMES SMALL CRAFT EXERCISE CAUTION (SCEC)
CONDITIONS, PARTICULARLY THROUGH MONDAY OF NEXT WEEK. TUESDAY
THROUGH FRIDAY, LOW TO MODERATE SEAS ARE POSSIBLE. THERE IS A LOW,
NON-ZERO PROBABILITY OF AN ISOLATED STREAMER SHOWER OR THUNDERSTORM
MID TO LATE NEXT WEEK.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 94 81 94 80 / 0 0 0 0
HARLINGEN 96 79 96 77 / 0 0 0 0
MCALLEN 99 80 99 79 / 0 0 0 0
RIO GRANDE CITY 101 79 101 77 / 0 0 0 0
SOUTH PADRE ISLAND 88 81 87 81 / 0 0 0 0
BAYVIEW/PORT ISABEL 92 80 92 79 / 0 0 0 0
BRO WATCHES/WARNINGS/ADVISORIES
NONE.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page