Tehuantepec Forecast

January 18, 2026, 3:01 pm (UTC: -05:00)
Subject: Tehuantepec Forecast

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

.WARNINGS.

...GALE WARNING...
.WITHIN 16N95W TO 16N96W TO 14N96W TO 13N96W TO 14N95W TO
16N95W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS 30TO
45 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE WITHIN 15N93W TO 16N95W TO
16N96W TO 10N99W TO 10N97W TO 11N94W TO 15N93W N TO NE WINDS 20
TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 15N95W TO 16N95W TO 15N96W TO 14N96W TO
14N95W TO 15N95W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE
WINDS 30 TO 40 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE WITHIN 16N94W TO
14N96W TO 16N96W TO 12N99W TO 11N99W TO 12N95W TO 16N94W N TO NE
WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0 M. REMAINDER AREA WITHIN
12N91W TO 16N94W TO 12N102W TO 10N103W TO 07N97W TO 09N93W TO
12N91W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 16N94.5W TO 16N95.5W TO 15.5N95.5W TO
14.5N95.5W TO 15N94.5W TO 16N94.5W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 30 TO 40 KT. SEAS 2.5 TO 3.5 M.
ELSEWHERE WITHIN 14N94W TO 16N95W TO 16N96W TO 13N97W TO 11N99W
TO 12N96W TO 14N94W N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5
M. REMAINDER AREA WITHIN 12N94W TO 15N96W TO 08N100W TO 06N104W
TO 04N98W TO 07N95W TO 12N94W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN N TO NE SWELL.

.WITHIN 16N95W TO 16N96W TO 14N96W TO 13N96W TO 14N95W TO
16N95W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS 30TO
45 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE WITHIN 15N93W TO 16N95W TO
16N96W TO 10N99W TO 10N97W TO 11N94W TO 15N93W N TO NE WINDS 20
TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 15N95W TO 16N95W TO 15N96W TO 14N96W TO
14N95W TO 15N95W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE
WINDS 30 TO 40 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE WITHIN 16N94W TO
14N96W TO 16N96W TO 12N99W TO 11N99W TO 12N95W TO 16N94W N TO NE
WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0 M. REMAINDER AREA WITHIN
12N91W TO 16N94W TO 12N102W TO 10N103W TO 07N97W TO 09N93W TO
12N91W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 16N94.5W TO 16N95.5W TO 15.5N95.5W TO
14.5N95.5W TO 15N94.5W TO 16N94.5W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 30 TO 40 KT. SEAS 2.5 TO 3.5 M.
ELSEWHERE WITHIN 14N94W TO 16N95W TO 16N96W TO 13N97W TO 11N99W
TO 12N96W TO 14N94W N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5
M. REMAINDER AREA WITHIN 12N94W TO 15N96W TO 08N100W TO 06N104W
TO 04N98W TO 07N95W TO 12N94W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN N TO NE SWELL.

GULF OF TEHUANTEPEC GALE WARNING: THE PRESSURE GRADIENT BETWEEN
STRONG HIGH PRESSURE BUILDING ACROSS EASTERN MEXICO AND THE
EASTERN NORTH PACIFIC MONSOON TROUGH IS SUPPORTING GALE- FORCE N
GAP WINDS OVER THE GULF OF TEHUANTEPEC. VERY ROUGH SEAS TO 15 FT
ARE OVER THESE WATERS. THIS GALE WILL LIKELY LAST THROUGH WED
MORNING, WITH A PEAK OF SEVERE GALE THIS EVENING. VERY ROUGH
SEAS OVER THE TEHUANTEPEC AREA WILL SPREAD SW, REACHING AS FAR AS
100W ON MON, WITH SEAS PEAKING NEAR 18 FT TONIGHT. MARINE
INTERESTS TRANSITING ACROSS THE GULF OF TEHUANTEPEC INTO THE
MIDDLE PART OF THE WEEK SHOULD BE AWARE OF THESE GALE- FORCE GAP
WINDS AND TAKE THE NECESSARY ACTION TO AVOID HAZARDOUS MARINE
CONDITIONS OVER THE AFFECTED WATERS.
FOR THE FORECAST, THE PRESSURE GRADIENT BETWEEN HIGH PRESSURE
NORTH OF THE AREA AND THE EASTERN NORTH PACIFIC MONSOON TROUGH
WILL SUPPORT FRESH TO STRONG NE TO E WINDS AND ROUGH SEAS IN THE
PAPAGAYO REGION THROUGH AT LEAST THE MIDDLE OF THE WEEK. THE
PRESSURE GRADIENT WILL ALSO SUPPORT MODERATE TO FRESH N WINDS
OVER THE GULF OF PANAMA FROM MON NIGHT INTO WED NIGHT. ELSEWHERE,
WINDS WILL BE MODERATE OR WEAKER OVER THE FORECAST WATERS
THROUGH MIDWEEK. NW TO N SWELL GENERATED BY GALES OVER THE GULF
OF TEHUANTEPEC WILL BRING ROUGH TO VERY ROUGH SEAS WELL OFFSHORE
GUATEMALA AND EL SALVADOR THROUGH MIDWEEK.

FOR THE FORECAST, THE FRONT WILL DISSIPATE TONIGHT. THE LARGE NW
SWELL WILL GRADUALLY SUBSIDE THROUGH THE MIDDLE OF THE WEEK.
FRESH TO STRONG WINDS FROM THE GULF OF TEHUANTEPEC AND GULF OF
PAPAGAYO GAP WILL SPREAD INTO THE REGION THROUGH TUE NIGHT ALONG
WITH SEAS OF 8-12 FT. ELSEWHERE, WINDS SHOULD REMAIN MODERATE OR
WEAKER, WITH SEAS LESS THAN 8 FT, FOR THE NEXT SEVERAL DAYS.

SHORT-TERM TEHUANTEPEC
TODAY - NNW 37-46, Seas NNW 14.7-14.8 ft @ 8sec
TONITE - N 33-41, Seas NNW 17.6-17.6 ft @ 9sec
MONDAY - N 33-41, Seas NNW 17.6-17.6 ft @ 9sec
MONDAY NIGHT - N 24-30, Seas NNW 11.1-11.3 ft @ 8sec

LONG-TERM TEHUANTEPEC
TUESDAY - N 24-30, Seas NNW 11.1-11.3 ft @ 8sec
WEDNESDAY - NNW 23-29, Seas NNW 10.4-10.7 ft @ 8sec
THURSDAY - NNW 21-26, Seas SW 5.5-6.3 ft @ 15sec
FRIDAY - NNW 18-23, Seas SW 5.9-6.6 ft @ 14sec
SATURDAY - NNW 14-17, Seas N/A ?-? ft @ ?