808
FXUS64 KBRO 261658
AFDBRO
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1158 AM CDT THU MAR 26 2026
..NEW DISCUSSION, MARINE, FIRE WEATHER
KEY MESSAGES
UPDATED AT 1155 AM CDT THU MAR 26 2026
KEY MESSAGES:
* UNSEASONABLY WARM, MAINLY RAIN-FREE, AND AT TIMES BREEZY CONDITIONS
TO PREVAIL THROUGH NEXT WEEK.
* THERE IS A LOW-MEDIUM (20-50%) RISK FOR SHOWERS AND THUNDERSTORMS
ON SATURDAY IN RESPONSE TO A NEARBY FRONTAL BOUNDARY.
* BORDERLINE ELEVATED WILDFIRE CONDITIONS WILL PREVAIL THROUGH NEXT
WEEK.
* GENERALLY FAVORABLE MARINE CONDITIONS WILL PERSIST THROUGH NEXT
MONDAY WITH LOW TO MODERATE SEAS AND WINDS.
DISCUSSION
ISSUED AT 1155 AM CDT THU MAR 26 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. A WEAKENED, BUT STILL ANOMALOUSLY
STRONG 582-588 DAM HEAT RIDGE WILL PROPAGATE FROM THE SOUTHWEST
U.S. TO THE SOUTH-CENTRAL U.S., AND FINALLY TO THE SOUTHEAST
CONUS BY NEXT WEEK. THIS FEATURE ALONG WITH POSITIVE GEOPOTENTIAL
HEIGHTS WILL DRIVE OUR WARM AND DRY WEATHER PATTERN THROUGH NEXT
WEEK.
AN APPROACHING FRONTAL BOUNDARY COULD SET OFF SOME ISOLATED TO
SCATTERED SHOWERS AND THUNDERSTORMS ON SATURDAY. WE CURRENTLY HAVE
LOW-MEDIUM (20-50%) CHANCES OF SHOWERS AND THUNDERSTORMS ON SATURDAY
WITH THE HIGHEST CHANCES OVER THE MID TO LOWER RIO GRANDE VALLEY
(RGV).
DAYTIME HIGH TEMPERATURES WILL RANGE BETWEEN THE UPPER 80S NEAR THE
COAST TO THE MID-UPPER 90S WEST OF IH-69C EACH DAY. THE EXCEPTION
WILL BE ON SATURDAY, WHERE HIGH TEMPERATURES WILL BE IN THE LOW TO
MID 80S, COURTESY OF THE NEARBY FRONTAL BOUNDARY. OVERNIGHT LOW
TEMPERATURES WILL MAINLY BE IN THE 60S. WEDNESDAY NIGHT AND THURSDAY
NIGHT, LOWS COULD BE IN THE LOWER 70S ALONG THE RGV.
AVIATION
(18Z TAFS)
ISSUED AT 1113 AM CDT THU MAR 26 2026
THROUGH 18Z FRIDAY....VFR CONDITIONS ARE EXPECTED TO PERSIST THROUGH
THE 18Z TAF PERIOD. SKIES WILL BE MAINLY SKC, WITH THE EXCEPTION OF
A SCT-BKN DECK OF DIURNALLY DRIVEN CUMULUS CLOUDS EACH AFTERNOON.
WINDS WILL BE BREEZY OUT OF THE SOUTH-SOUTHEAST 7-15 KTS THROUGH THE
FORECAST PERIOD. WINDS WILL GUSTS 20-30 KTS DURING THE AFTERNOON
HOURS.
MARINE
ISSUED AT 1155 AM CDT THU MAR 26 2026
GENERALLY FAVORABLE MARINE CONDITIONS WITH LOW TO MODERATE WINDS AND
SEAS ARE EXPECTED TO PERSIST THROUGH MONDAY OF NEXT WEEK. SMALL
CRAFT EXERCISE CAUTION (SCEC) CONDITIONS COULD DEVELOP MONDAY
EVENING THROUGH THURSDAY OF NEXT WEEK.
FIRE WEATHER
ISSUED AT 1155 AM CDT THU MAR 26 2026
MINIMUM RELATIVE HUMIDITY (RH) VALUES, BREEZY SOUTHERLY WINDS, AND
AN ONGOING DROUGHT WILL YIELD BORDERLINE ELEVATED WILDFIRE CONCERNS
THROUGH NEXT WEEK.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 67 87 66 83 / 0 0 10 50
HARLINGEN 63 91 62 85 / 0 0 10 40
MCALLEN 68 94 67 88 / 0 0 10 50
RIO GRANDE CITY 65 96 64 87 / 0 0 20 40
SOUTH PADRE ISLAND 71 79 69 77 / 0 0 10 40
BAYVIEW/PORT ISABEL 66 86 64 81 / 0 0 10 40
BRO WATCHES/WARNINGS/ADVISORIES
TX...NONE.
GM...NONE.
SHORT TERM...23-EVBUOMA
LONG TERM....23-EVBUOMA
AVIATION...23-EVBUOMA
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