626
FXUS64 KBRO 261841
AFDBRO
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
141 PM CDT SUN APR 26 2026
..NEW DISCUSSION, MARINE
KEY MESSAGES
UPDATED AT 116 PM CDT SUN APR 26 2026
KEY MESSAGES:
- MODERATE TO MAJOR HEAT RISK THROUGH MIDWEEK AS HOT AND DRY
CONDITIONS PREVAIL.
_ A MODERATE RISK OF RIP CURRENTS ONS EXPECTED AT AREAS BEACHES
THROUGH MIDWEEK.
-SLIGHTLY ADVERSE MARINE CONDITIONS ARE EXPECTED, ESPECIALLY EACH
AFTERNOON, DUE TO ELEVATED WINDS.
DISCUSSION
ISSUED AT 116 PM CDT SUN APR 26 2026
HOT AND DRY CONDITIONS WILL PREVAIL THROUGH THURSDAY WITH AN UPPER
LEVEL RIDGE OVER NORTHERN MEXICO INTO SOUTHERN TEXAS. THROUGH THE
FIRST HALF OF THE WEEK A DRYLINE EXTENDING FROM NORTHERN TEXAS
INTO THE SIERRA MADRE COULD BE THE FOCAL POINT FOR AFTERNOON/EVENING
CONVECTION. IF THUNDERSTORMS DEVELOP THEY WILL LIKELY BE STRONG TO
SEVERE AND MOVE EASTWARD IN THE EVENING. EVEN THROUGH CAPE AND SHEAR
PARAMETERS ARE FAVORABLE FOR SEVERE THUNDERSTORMS ACROSS THE REGION,
AS THIS ACTIVITY NEARS THE RIO GRANDE, A STRONG CAP IN PLACE AND DRY
MIDLEVELS WILL HELP HINDER THIS ACTIVITY FROM MOVING INTO DEEP SOUTH
TEXAS. HOWEVER, IF THIS DEVELOPMENT IS ABLE TO BREAK THE CAP, AND
SUSTAIN ITSELF AN ISOLATED STRONG TO SEVERE THUNDERSTORM COULD SNEAK
INTO THE WESTERN PORTIONS OF THE CWA, THOUGH CHANCES REMAIN UNDER
10%.
OTHERWISE, THE MAIN STORY FOR THE FORECAST PERIOD WILL BE THE HEAT.
UNSEASONABLY WARM TEMPERATURES WILL CONTINUE THROUGH THE WORKWEEK
WITH HIGHS IN THE MID TO UPPER 90S AND A FEW TRIPLE DIGITS ALONG
AND WEST OF I-69C THROUGH WEDNESDAY. HEAT INDICES WILL REMAIN
BETWEEN 100 AND 110 THROUGH MIDWEEK, WITH A FEW LOCATIONS
REACHING HEAT INDICES NEAR 113 DEGREES. AT THIS TIMES WE REMAIN
JUST SHY OF HEAT ADVISORY CRITERIA, BUT REMAIN IN A MODERATE
RISK(LEVEL 2 OUT OF 4)THROUGH WEDNESDAY, WITH A MAJOR (LEVEL 3
OUT OF 4) HEAT RISK ACROSS WESTERN PORTIONS OF THE CWA INTO
WEDNESDAY.
AS WE HEAD INTO LATE WEEK, A COLD FRONT WILL BEGIN TO SAG SOUTH
ACROSS TEXAS LEADING TO INCREASING CHANCES OF SHOWER AND
THUNDERSTORMS CHANCES FRIDAY INTO SATURDAY.
A MODERATE RISK OF RIP CURRENTS IS EXPECTED THROUGH AT LEAST
WEDNESDAY.
AVIATION
(18Z TAFS)
ISSUED AT 1211 PM CDT SUN APR 26 2026
MVFR CONDITIONS WILL GIVE WAY TO VFR AT HRL AND MFE THIS
AFTERNOON. BY THIS EVENING MVFR CONDITIONS WILL RETURN TO
ALL AERODROMES AND CEILINGS WILL FALL EVEN FURTHER OVERNIGHT TO
IFR/LIFR AT ALL TERMINALS. MVFR CONDITIONS WILL RETURN AFTER
SUNRISE ON MONDAY. SOUTHEASTERLY WINDS WILL REMAIN LIGHT TO
MODERATE THROUGH THE FORECAST PERIOD.
MARINE
ISSUED AT 116 PM CDT SUN APR 26 2026
GENERALLY FAVORABLE MARINE CONDITIONS ARE EXPECTED ON THE
WATERS OFF THE LOWER TEXAS COAST WITH WAVE HEIGHTS OF 3 TO 5 FT WITH
6 TO 7 SECOND PERIODS. COULD SEE SOME CAUTIONS CONDITIONS, MAINLY
ON THE LAGUNA MADRE THROUGH THE WEEK AS THE AFTERNOON WINDS INCREASE
DUE TO A TIGHTENING PRESSURE GRADIENT. A COLD FRONT NEXT WEEKEND
COULD LEAD TO THE NEEDS OF SMALL CRAFT ADVISORIES.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 75 92 76 92 / 0 0 0 0
HARLINGEN 73 95 74 96 / 0 0 0 0
MCALLEN 77 98 78 99 / 0 0 0 0
RIO GRANDE CITY 74 100 76 103 / 0 0 0 0
SOUTH PADRE ISLAND 75 83 76 83 / 0 0 0 0
BAYVIEW/PORT ISABEL 74 90 74 90 / 0 0 0 0
BRO WATCHES/WARNINGS/ADVISORIES
TX...NONE.
GM...NONE.
SHORT TERM...68-MCGINNIS
LONG TERM....68-MCGINNIS
AVIATION...68
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