Tehuantepec Forecast

January 19, 2026, 9:00 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 15N96W TO 14N96W TO 13N96W TO 14N95W TO
16N95W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 30 TO 40
KT. SEAS 2.5 TO 4.0 M. ELSEWHERE WITHIN 16N95W TO 16N96W TO
13N99W TO 11N99W TO 11N98W TO 13N94W TO 16N95W N TO NE WINDS 20
TO 30 KT. SEAS 2.5 TO 4.0 M. REMAINDER AREA WITHIN 15N94W TO
12N96W TO 13N99W TO 10N102W TO 08N96W TO 10N93W TO 15N94W WINDS
20 KT OR LESS. SEAS 2.5 TO 3.5 M IN N TO NE SWELL.
.24 HOUR FORECAST WITHIN 16N94.5W TO 16N95W TO 15.5N95.5W TO
14.5N95.5W TO 14.5N95W TO 15N94.5W TO 16N94.5W...INCLUDING THE
GULF OF TEHUANTEPEC... N WINDS 30 TO 40 KT. SEAS 2.5 TO 3.5 M.
ELSEWHERE WITHIN 14N94W TO 16N95W TO 13N97W TO 11N97W TO 13N95W
TO 14N94W N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
REMAINDER AREA WITHIN 12N94W TO 14N97W TO 09N102W TO 07N106W TO
05N104W TO 06N99W TO 12N94W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 15N94W TO 16N94W TO 16N96W TO 13N97W TO
12N97W TO 13N95W TO 15N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
ELSEWHERE WITHIN 11N94W TO 15N94W TO 07N109W TO 05N107W TO
05N102W TO 06N97W TO 11N94W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN NE SWELL.

.WITHIN 16N95W TO 15N96W TO 14N96W TO 13N96W TO 14N95W TO
16N95W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 30 TO 40
KT. SEAS 2.5 TO 4.0 M. ELSEWHERE WITHIN 16N95W TO 16N96W TO
13N99W TO 11N99W TO 11N98W TO 13N94W TO 16N95W N TO NE WINDS 20
TO 30 KT. SEAS 2.5 TO 4.0 M. REMAINDER AREA WITHIN 15N94W TO
12N96W TO 13N99W TO 10N102W TO 08N96W TO 10N93W TO 15N94W WINDS
20 KT OR LESS. SEAS 2.5 TO 3.5 M IN N TO NE SWELL.
.24 HOUR FORECAST WITHIN 16N94.5W TO 16N95W TO 15.5N95.5W TO
14.5N95.5W TO 14.5N95W TO 15N94.5W TO 16N94.5W...INCLUDING THE
GULF OF TEHUANTEPEC... N WINDS 30 TO 40 KT. SEAS 2.5 TO 3.5 M.
ELSEWHERE WITHIN 14N94W TO 16N95W TO 13N97W TO 11N97W TO 13N95W
TO 14N94W N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
REMAINDER AREA WITHIN 12N94W TO 14N97W TO 09N102W TO 07N106W TO
05N104W TO 06N99W TO 12N94W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 15N94W TO 16N94W TO 16N96W TO 13N97W TO
12N97W TO 13N95W TO 15N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
ELSEWHERE WITHIN 11N94W TO 15N94W TO 07N109W TO 05N107W TO
05N102W TO 06N97W TO 11N94W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN NE SWELL.

GULF OF TEHUANTEPEC GALE WARNING: THE PRESSURE GRADIENT BETWEEN
STRONG HIGH PRESSURE NORTH OF THE AREA AND THE EASTERN NORTH
PACIFIC MONSOON TROUGH IS SUPPORTING GALE- FORCE N GAP WINDS OVER
THE GULF OF TEHUANTEPEC. THIS GALE, ALONG WITH VERY ROUGH SEAS,
WILL LIKELY LAST INTO WED MORNING. 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.
FRESH TO STRONG GAP WINDS, AND SEAS OF 7 TO 9 FT, PREVAIL ACROSS
THE GULF OF PAPAGAYO, EXTENDING SW TO 90W. ROUGH SEAS OF 7-11 FT
ARE WELL OFFSHORE GUATEMALA AND EL SALVADOR IN SWELL GENERATED
BY THE GULF OF TEHUANTEPEC GALE FORCE GAP WIND EVENT. ELSEWHERE,
WINDS ARE MODERATE OR WEAKER WITH SEAS IN THE 3 TO 5 FT RANGE.
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 THE END OF THE WEEK. THE PRESSURE
GRADIENT WILL ALSO SUPPORT PULSING OF MODERATE TO FRESH N WINDS
OVER THE GULF OF PANAMA THROUGH THE END OF THE WEEK. ELSEWHERE,
WINDS WILL BE MODERATE OR WEAKER OVER THE FORECAST WATERS THROUGH
THE END OF THE WEEK. NW TO N SWELL GENERATED BY GALES OVER THE
GULF OF TEHUANTEPEC WILL BRING ROUGH SEAS WELL OFFSHORE GUATEMALA
AND EL SALVADOR THROUGH MIDWEEK.

FOR THE FORECAST, 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 23-29, Seas NNW 11.3-11.4 ft @ 8sec
TONITE - N 22-27, Seas NNW 10.3-10.6 ft @ 8sec
WEDNESDAY - N 22-27, Seas NNW 10.3-10.6 ft @ 8sec
WEDNESDAY NIGHT - NNW 21-26, Seas SW 5.7-6.4 ft @ 15sec

LONG-TERM TEHUANTEPEC
THURSDAY - NNW 21-26, Seas SW 5.7-6.4 ft @ 15sec
FRIDAY - N 15-19, Seas SW 3.7-4.7 ft @ 14sec
SATURDAY - Not available yet
SUNDAY - NNW 33-41, Seas N/A ?-? ft @ ?
MONDAY - Not available yet