178
FXUS64 KBRO 281730
AFDBRO
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1230 PM CDT SAT MAR 28 2026
..NEW DISCUSSION, AVIATION, MARINE
KEY MESSAGES
UPDATED AT 1224 PM CDT SAT MAR 28 2026
KEY MESSAGES:
* UNSEASONABLY WARM, DRY, AND AT TIMES BREEZY CONDITIONS WILL
PERSIST THROUGH NEXT WEEK.
* GENERALLY FAVORABLE MARINE CONDITIONS WILL CONTINUE THROUGH
MONDAY BEFORE BECOMING SLIGHTLY MORE ADVERSE MONDAY NIGHT
THROUGH NEXT WEEKEND.
DISCUSSION
ISSUED AT 1224 PM CDT SAT MAR 28 2026
UNSEASONABLY WARM, MOSTLY RAIN-FREE, AND AT TIMES BREEZY CONDITIONS
WILL PREVAIL THROUGH NEXT WEEK ACROSS DEEP SOUTH TEXAS AND THE RIO
GRANDE VALLEY. MID-UPPER RIDGING/HIGHER GEOPOTENTIAL HEIGHTS WILL
CONTINUE TO INFLUENCE OUR WEATHER PATTERN THROUGH THE FORECAST
PERIOD ACROSS DEEP SOUTH TEXAS AND THE RIO GRANDE VALLEY. ON THE
WESTERN FLANK OF A BERMUDA HIGH, SOUTH-SOUTHEASTERLY WINDS WILL
RETURN NEXT WEEK. WINDS COULD BECOME BREEZY AT TIMES AS THE SFC
PRESSURE GRADIENT TIGHTENS NEARBY.
THE COMBINATION OF CLOUDS AND COOL AIR ADVECTION (CAA) FOLLOWING THE
PASSAGE OF A COOL FRONT WILL KEEP HIGH TEMPERATURES TODAY IN THE LOW
TO MID 80S MOST PLACES; UPPER 70S WEST. A WARMING TREND BEGINS ON
SUNDAY WITH HIGHS RETURNING INTO THE MID 80S TO LOWER 90S. NEXT
WORKWEEK, DAYTIME HIGH TEMPERATURES WILL RANGE BETWEEN THE UPPER
80S/LOWER 90S NEAR THE COAST TO THE MID-UPPER 90S ALONG AND WEST
OF IH-69C EACH DAY. OVERNIGHT LOW TEMPERATURES WILL MAINLY BE IN
THE 60S THROUGH THE FORECAST PERIOD. HOWEVER, THERE COULD BE SOME
NIGHTS (TUESDAY NIGHT THROUGH FRIDAY NIGHT) WITH LOWS IN THE 70S
MAINLY ALONG THE RIO GRANDE VALLEY.
AVIATION
(18Z TAFS)
ISSUED AT 1224 PM CDT SAT MAR 28 2026
THROUGH 18Z SUNDAY....SFC OBSERVATIONS, SATELLITE, AND RADAR SCANS
REVEALED A SCT-OVC STRATO-CUMULS DECK OF HIGH MVFR TO LOW VFR CLOUDS
OVER THE REGION WITH CLOUD BASES RANGING BETWEEN 1,500-3,000 FEET
AGL AND UNRESTRICTED VISIBILITIES, AS OF THIS UPDATE, FOLLOWING
THE PASSAGE OF A COOL FRONT. THROUGH THIS AFTERNOON INTO THIS
EVENING, EXPECT FOR SCT-OVC MVFR-VFR CLOUDS TO PERSIST WITH CLOUD
COVERAGE AND HEIGHTS POTENTIALLY IMPROVING AS TIME WEARS ON. LATER
TONIGHT, IT'S POSSIBLE THAT MVFR CEILINGS WILL RETURN TO THE
TERMINALS, SHOULD THERE BE A SLIGHT BREAK LATER THIS
AFTERNOON/EVENING.
WINDS BEHIND THE COOL FRONT WILL CONTINUE OUT OF THE NORTH 5-15 KTS
THROUGH THIS EVENING. THERE COULD BE INSTANCES WHERE THE WINDS
ARE GUSTING AS HIGH AS 20-25 KTS THIS AFTERNOON. LATER THIS
EVENING/TONIGHT WINDS WILL TREND TOWARDS CALM. ON SUNDAY, AN
EASTERLY-SOUTHEASTERLY WIND COMPONENT WILL DEVELOP WITH SPEEDS
BETWEEN 5-10 KTS.
MARINE
ISSUED AT 1224 PM CDT SAT MAR 28 2026
GENERALLY FAVORABLE MARINE CONDITIONS WILL CONTINUE THROUGH MONDAY
WITH LOW TO MODERATE WINDS AND SEAS. MONDAY NIGHT THROUGH NEXT
WEEKEND, MARINE CONDITIONS COULD BECOME SLIGHTLY MORE ADVERSE AS
BREEZY SOUTH-SOUTHEASTERLY WINDS COULD DRIVE UP SLIGHTLY HIGHER
WAVE HEIGHTS. SMALL CRAFT EXERCISE CAUTION (SCEC) CONDITIONS ARE
LIKELY TUESDAY THROUGH NEXT SATURDAY AS A RESULT.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 65 84 67 86 / 20 20 0 0
HARLINGEN 61 86 63 89 / 10 20 0 0
MCALLEN 66 89 68 92 / 20 20 0 0
RIO GRANDE CITY 62 90 66 93 / 20 0 0 0
SOUTH PADRE ISLAND 69 77 71 78 / 10 20 0 10
BAYVIEW/PORT ISABEL 65 82 66 84 / 10 20 0 0
BRO WATCHES/WARNINGS/ADVISORIES
TX...NONE.
GM...NONE.
SHORT TERM...23-EVBUOMA
LONG TERM....23-EVBUOMA
AVIATION...23-EVBUOMA
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