Tehuantepec Forecast

April 18, 2026, 9:01 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...
.30 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W TO
14N95W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...NW TO N
WINDS 25 TO 35 KT. SEAS 2.5 TO 3 M.
.48 HOUR FORECAST WITHIN 16N94W TO 16N96W TO 13N98W TO 12N98W TO
12N97W TO 13N95W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC...NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.

.30 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W TO
14N95W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...NW TO N
WINDS 25 TO 35 KT. SEAS 2.5 TO 3 M.
.48 HOUR FORECAST WITHIN 16N94W TO 16N96W TO 13N98W TO 12N98W TO
12N97W TO 13N95W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC...NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.

GULF OF TEHUANTEPEC GALE WARNING: HIGH PRESSURE RIDGING WILL
BUILD SOUTHWARD ALONG EASTERN MEXICO IN THE WAKE OF A LATE-
SEASON COLD FRONT THAT WILL MOVE ACROSS THE NORTHERN GULF OF
AMERICA TONIGHT THROUGH MON. THE PRESSURE GRADIENT BETWEEN THE
RIDGE AND RELATIVELY LOWER PRESSURE SOUTH OF MEXICO SHOULD
TIGHTEN ENOUGH TO SUPPORT A BRIEF OCCURRENCE OF GALE-FORCE
NORTHERLY WINDS IN THE GULF OF TEHUANTEPEC SUN NIGHT INTO MON
MORNING. THE GRADIENT WILL THEN RELAX ENOUGH AS HIGH PRESSURE
NORTH OF THE AREA SHIFTS EASTWARD DURING MON ENABLING THE GALE
WINDS TO DIMINISH TO STRONG SPEEDS. SEAS WITH THIS UPCOMING GALE
EVENT ARE EXPECTED TO PEAK TO AROUND 11 FT. LINGERING ROUGH SEAS
LATER DURING MON WILL SUBSIDE LATE MON. MARINE INTERESTS
TRANSITING THROUGH, OR NEAR THE GULF OF TEHUANTEPEC SHOULD TAKE
THE NECESSARY ACTION TO AVOID HAZARDOUS MARINE CONDITIONS OVER
THE AFFECTED WATERS.
...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...CORRECTED

PLEASE SEE THE SPECIAL FEATURES SECTION ABOVE FOR INFORMATION
ON AN UPCOMING GAP WIND GALE-EVENT IN THE GULF OF TEHUANTEPEC.

SHORT-TERM TEHUANTEPEC
TODAY - Not available yet
TONITE - N 19-24, Seas SSW 3.7-5.8 ft @ 15sec
MONDAY - N 24-30, Seas SSW 5.1-6.8 ft @ 15sec
MONDAY NIGHT - SW 6-8, Seas SSW --? ft @ 14sec

LONG-TERM TEHUANTEPEC
TUESDAY - NNW 15-19, Seas SSW 3.1-5.6 ft @ 17sec
WEDNESDAY - NW 12-15, Seas SSW 2.5-5.4 ft @ 15sec
THURSDAY - SSW 8-10, Seas N/A ?-? ft @ ?
FRIDAY - SSW 10-12, Seas N/A ?-? ft @ ?
SATURDAY - Not available yet