Tehuantepec Forecast

March 17, 2026, 3:01 pm (UTC: -04:00)
Subject: Tehuantepec Forecast

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

.WARNINGS.

...GALE WARNING...
.WITHIN 16N94W TO 16N95W TO 15N96W TO 14N96W TO 14N94W TO 15N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35
KT. SEAS 3.0 TO 4.5 M. ELSEWHERE...WITHIN 15N93W TO 16N94W TO
16N95W TO 14N96W TO 12N96W TO 13N94W TO 15N93W N WINDS 20 TO 30
KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST WITHIN 14N94W TO 16N94W TO 16N95W TO 11N99W TO
11N98W TO 12N95W TO 14N94W...INCLUDING THE GULF OF
TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
ELSEWHERE...WITHIN 14N93W TO 16N95W TO 11N100W TO 10N99W TO
10N95W TO 12N93W TO 14N93W...INCLUDING THE GULF OF TEHUANTEPEC...
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 16N95W TO 14N96W TO 13N96W TO 13N95W TO
14N94W TO 16N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.

.WITHIN 16N94W TO 16N95W TO 15N96W TO 14N96W TO 14N94W TO 15N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35
KT. SEAS 3.0 TO 4.5 M. ELSEWHERE...WITHIN 15N93W TO 16N94W TO
16N95W TO 14N96W TO 12N96W TO 13N94W TO 15N93W N WINDS 20 TO 30
KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST WITHIN 14N94W TO 16N94W TO 16N95W TO 11N99W TO
11N98W TO 12N95W TO 14N94W...INCLUDING THE GULF OF
TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
ELSEWHERE...WITHIN 14N93W TO 16N95W TO 11N100W TO 10N99W TO
10N95W TO 12N93W TO 14N93W...INCLUDING THE GULF OF TEHUANTEPEC...
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 16N95W TO 14N96W TO 13N96W TO 13N95W TO
14N94W TO 16N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.

...SPECIAL FEATURES...
GULF OF TEHUANTEPEC GALE WARNING: THE PRESSURE GRADIENT BETWEEN
HIGH PRESSURE BUILDING ACROSS EASTERN MEXICO AND THE EQUATORIAL
TROUGH IS SUPPORTING GALE FORCE GAP WINDS IN THE TEHUANTEPEC
REGION, WITH SEAS PEAKING NEAR 13 FT. GALE FORCE WINDS WILL
CONTINUE THROUGH TONIGHT BEFORE DIMINISHING. NEAR- GALE FORCE
GAP WINDS AND ROUGH SEAS ARE THEN LIKELY TO PULSE ACROSS THE
TEHUANTEPEC REGION INTO FRI.
PLEASE SEE SPECIAL FEATURES ABOVE FOR MORE ON A GALE WARNING IN
THE GULF OF TEHUANTEPEC.
ASIDE FROM THE GULF OF TEHUANTEPEC, A WEAK PRESSURE GRADIENT IS
GENERATING LIGHT TO GENTLE WINDS ACROSS MUCH OF THE FORECAST
AREA, EXCEPT LOCALLY MODERATE WINDS OFF CABO SAN LUCAS AND CABO
CORRIENTES. MODERATE SEAS PREVAIL OVER THE OPEN WATERS, WITH
SLIGHT SEAS IN THE GULF OF CALIFORNIA.
FOR THE FORECAST ASIDE FROM THE GULF OF TEHUANTEPEC GALE WARNING,
A WEAK PRESSURE PATTERN OVER THE REGION WILL MAINTAIN GENTLE TO
MODERATE BREEZES AND AND MODERATE SEAS OVER THE OPEN WATERS OFF
MEXICO, WITH SLIGHT TO MODERATE SEAS IN THE GULF OF CALIFORNIA.

FOR THE FORECAST, LARGE NE SWELL GENERATED BY THE GALE FORCE GAP
WINDS IN THE GULF OF TEHUANTEPEC WILL IMPACT THE OFFSHORE WATERS
OF GUATEMALA THROUGH WED. GENTLE BREEZES AND MODERATE SEAS WILL
PREVAIL ELSEWHERE THROUGH LATE WEEK.

FOR THE FORECAST, LARGE N TO NE SWELL GENERATED FROM THE GULF
OF TEHUANTEPEC GALE FORCE GAP WINDS WILL BRIEFLY BRING ROUGH
SEAS MAINLY FROM 08N TO 12N AND EAST OF 100W TONIGHT AND
WEDNESDAY. OTHERWISE, MODERATE OR WEAKER WINDS AND MODERATE SEAS
WILL PREVAIL ACROSS THE REGION THROUGH LATE WEEK.

SHORT-TERM TEHUANTEPEC
TODAY - NNW 26-32, Seas NNW 11.4-12.2 ft @ 8sec
TONITE - N 22-28, Seas NNW 9.8-10.5 ft @ 8sec
WEDNESDAY - N 22-28, Seas NNW 9.8-10.5 ft @ 8sec
WEDNESDAY NIGHT - NNW 18-23, Seas SSW 4.6-5.7 ft @ 14sec

LONG-TERM TEHUANTEPEC
THURSDAY - NNW 26-33, Seas SSW 6.2-7.1 ft @ 17sec
FRIDAY - N 22-28, Seas SSW 5.8-6.8 ft @ 15sec
SATURDAY - N 14-17, Seas SSW 3.2-4.6 ft @ 14sec
SUNDAY - N 8-10, Seas SW 1.5-3.7 ft @ 13sec
MONDAY - SW 7-9, Seas N/A ?-? ft @ ?