070
FXUS64 KBRO 201830
AFDBRO
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
130 PM CDT MON APR 20 2026
..NEW DISCUSSION, AVIATION, MARINE
KEY MESSAGES
UPDATED AT 130 PM CDT MON APR 20 2026
KEY MESSAGES:
- BELOW NORMAL TEMPERATURES CONTINUE TODAY, AROUND 20-25 DEGREES
BELOW NORMAL FOR LATE APRIL. LOW TO MEDIUM RAIN CHANCES (20-40%)
CONTINUE INTO TOMORROW.
- A COASTAL FLOOD STATEMENT IS IN EFFECT THROUGH 7 PM THIS EVENING
AND A HIGH RISK FOR RIP CURRENTS CONTINUES THROUGH TUESDAY
MORNING.
- TEMPERATURES WARM UP THROUGH NEXT WEEKEND WITH HIGHS RANGING
BETWEEN THE UPPER 80S (NEAR THE COAST) TO UPPER 90S (WEST)
WEDNESDAY THROUGH NEXT SUNDAY.
DISCUSSION
ISSUED AT 130 PM CDT MON APR 20 2026
ANOTHER UNSEASONABLY COOL DAY IS IN STORE ACROSS DEEP SOUTH TEXAS
AS THE REGION REMAINS BENEATH A BLANKET OF STRATUS CLOUDS WITH
PERSISTENT NORTHERLY TO NORTHWESTERLY SURFACE WINDS. TEMPERATURES
AROUND 20-25 DEGREES BELOW NORMAL FOR LATE APRIL, WITH MOST AREAS
OBSERVING TEMPERATURES IN THE UPPER 50S TO MID 60S THIS AFTERNOON.
MOST PRECIPITATION HAS REMAINED OVER THE GULF WATERS TODAY,
ALTHOUGH LIGHT DRIZZLE OR RAIN CANNOT BE RULED OUT THIS AFTERNOON
INTO TOMORROW AS LOW LEVEL WARM, GULF MOISTURE OVERRUNS THE COOLER
AIR MASS AT THE SURFACE. RAINFALL AMOUNTS SHOULD REMAIN FAIRLY
LIGHT. A WARMING TREND BEGINS ON TUESDAY AS SOUTHERLY TO
SOUTHEASTERLY FLOW RETURNS ACROSS THE REGION, WITH ABOVE NORMAL
TEMPERATURES RETURNING BY MID TO LATE WEEK AND CONTINUING THROUGH
THE WEEKEND.
ALONG THE LOWER TEXAS BEACHES, A HIGH RISK OF RIP CURRENTS WILL
CONTINUE THROUGH AT LEAST TOMORROW MORNING. A COASTAL FLOOD
STATEMENT REMAINS IN EFFECT THROUGH 7 PM THIS EVENING.
AVIATION
(18Z TAFS)
ISSUED AT 130 PM CDT MON APR 20 2026
POOR FLYING CONDITIONS ARE EXPECTED TO CONTINUE THROUGH MUCH OF
THE FORECAST PERIOD AT ALL TAF SITES AS STRATUS CLOUDS BLANKET THE
REGION. MOST SITES ARE OBSERVING MVFR CEILINGS THIS AFTERNOON,
ALTHOUGH BRIEF PERIODS OF IFR CEILINGS MAY RETURN THROUGH THE
AFTERNOON HOURS. MOST GUIDANCE INDICATES THESE TRENDS TO CONTINUE
INTO THE OVERNIGHT HOURS, WITH IMPROVEMENT TO MVFR EXPECTED ONCE
AGAIN BY LATE TOMORROW MORNING. OTHERWISE, EXPECT LIGHT
NORTHWESTERLY WINDS TO GRADUALLY SHIFT TO THE EAST OVERNIGHT AND
TO THE SOUTHEAST BY TOMORROW MORNING WITH SPEEDS GENERALLY BELOW
10 KNOTS.
MARINE
ISSUED AT 130 PM CDT MON APR 20 2026
MARINE CONDITIONS WILL CONTINUE TO GRADUALLY IMPROVE THROUGH THE
FIRST HALF OF THE WEEK ACROSS THE GULF WATERS AND LAGUNA MADRE.
EXPECT WINDS TO GRADUALLY SHIFT BACK TO THE SOUTHEAST BY THIS
EVENING AND PERSISTING THROUGH THE WEEKEND. OTHERWISE, WAVE
HEIGHTS OF 4-6 FEET WILL CONTINUE THROUGH MID WEEK BEFORE FALLING
TO 2-4 FEET.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 70 80 71 86 / 40 30 10 10
HARLINGEN 67 81 68 88 / 40 30 10 10
MCALLEN 67 82 72 91 / 30 30 10 10
RIO GRANDE CITY 63 83 70 90 / 40 20 10 10
SOUTH PADRE ISLAND 71 77 73 79 / 40 30 10 10
BAYVIEW/PORT ISABEL 69 78 70 84 / 40 30 10 10
BRO WATCHES/WARNINGS/ADVISORIES
TX...HIGH RIP CURRENT RISK THROUGH TUESDAY MORNING FOR TXZ451-454-455.
GM...NONE.
SHORT TERM...22-GARCIA
LONG TERM....22-GARCIA
AVIATION...22-GARCIA
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