Tehuantepec Forecast

April 21, 2026, 9:01 am (UTC: -04:00)
Subject: Tehuantepec Forecast

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This forecast has not been reviewed. It was generated from an automatic model.

WARNINGS
.NONE.

.WITHIN 16N95W TO 15N96W TO 14N96W TO 14N95W TO 15N94W TO
16N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO
30 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 14N94W TO 16N95W TO
14N98W TO 13N100W TO 12N99W TO 12N97W TO 14N94W WINDS 20 KT OR
LESS. SEAS 2.5 M IN NE TO E SWELL.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

A RECENT SCATTEROMETER SATELLITE PASS CAPTURED THE EASTERN
PORTION OF THE GULF OF TEHUANTEPEC, SHOWING FRESH TO STRONG
NORTHERLY WINDS. STRONGER WINDS, NEAR 30 KT, ARE LIKELY STILL
OCCURRING IN THE BASIN. SEAS IN THESE WATERS ARE 6-10 FT.
FOR THE FORECAST, HIGH PRESSURE WILL SUPPORT FRESH TO STRONG N WINDS
AND ROUGH SEAS IN THE GULF OF TEHUANTEPEC THROUGH THIS AFTERNOON.
ELSEWHERE, A SET OF NORTHWEST SWELL WILL MOVE THROUGH THE WATERS
WEST OF BAJA CALIFORNIA NORTE TONIGHT INTO WED, BUT WILL BE
SUBSIDING AS IT DOES. SEAS ARE EXPECTED TO PEAK TO AROUND 8 FT WITH
THIS SWELL. FRESH TO LOCALLY STRONG NORTHWEST WINDS ARE FORECAST
OVER THE PACIFIC WATERS OF BAJA CALIFORNIA BEGINNING LATE WED.
NORTHWEST WINDS WILL PULSE TO MODERATE TO FRESH SPEEDS AT NIGHT
OFFSHORE SOUTHWESTERN MEXICO TODAY THROUGH FRI. ELSEWHERE, MOSTLY
LIGHT TO GENTLE WEST TO NORTHWEST WINDS ARE EXPECTED THROUGH THE END
OF THE WEEK AND INTO THE UPCOMING WEEKEND.

SHORT-TERM TEHUANTEPEC
TODAY - N 18-22, Seas SSW 4.2-6.2 ft @ 18sec
TONITE - N 18-22, Seas SSW 4.2-6.2 ft @ 18sec
WEDNESDAY - Not available yet
WEDNESDAY NIGHT - Not available yet

LONG-TERM TEHUANTEPEC
THURSDAY - SSW 9-11, Seas SSW 1.6-4.3 ft @ 14sec
FRIDAY - SSW 9-11, Seas SSW 2.3-4.1 ft @ 13sec
SATURDAY - Not available yet
SUNDAY - SW 8-10, Seas N/A ?-? ft @ ?
MONDAY - SW 9-11, Seas N/A ?-? ft @ ?