Tehuantepec Forecast

January 13, 2026, 9:01 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 16N94.5W TO 16.5N95W TO 15.5N95.5W TO 15N95W TO 15N94.5W
TO 16N94.5W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 25 TO
35 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE... WITHIN 11N93W TO 16N95W
TO 14N98W TO 13N109W TO 03N104W TO 04N97W TO 11N93W... E WINDS
20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.12 HOUR FORECAST WITHIN 15N94W TO 16N95W TO 12N99W TO 11N104W
TO 08N101W TO 07N99W TO 15N94W...INCLUDING THE GULF OF
TEHUANTEPEC... NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 15N95W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.42 HOUR FORECAST WITHIN 16.5N94.5W TO 16.5N95W TO 16N95.5W TO
15N95W TO 15N94.5W TO 16.5N94.5W...INCLUDING THE GULF OF
TEHUANTEPEC... N WINDS 25 TO 35 KT. SEAS 2.5 TO 3.0 M.
ELSEWHERE... WITHIN 16N94W TO 16N96W TO 13N98W TO 11N98W TO
12N95W TO 13N94W TO 16N94W... N TO NE WINDS 20 TO 30 KT. SEAS 2.5
TO 3.0 M.
.48 HOUR FORECAST LITTLE CHANGE.

.WITHIN 16N94.5W TO 16.5N95W TO 15.5N95.5W TO 15N95W TO 15N94.5W
TO 16N94.5W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 25 TO
35 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE... WITHIN 11N93W TO 16N95W
TO 14N98W TO 13N109W TO 03N104W TO 04N97W TO 11N93W... E WINDS
20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.12 HOUR FORECAST WITHIN 15N94W TO 16N95W TO 12N99W TO 11N104W
TO 08N101W TO 07N99W TO 15N94W...INCLUDING THE GULF OF
TEHUANTEPEC... NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 15N95W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.42 HOUR FORECAST WITHIN 16.5N94.5W TO 16.5N95W TO 16N95.5W TO
15N95W TO 15N94.5W TO 16.5N94.5W...INCLUDING THE GULF OF
TEHUANTEPEC... N WINDS 25 TO 35 KT. SEAS 2.5 TO 3.0 M.
ELSEWHERE... WITHIN 16N94W TO 16N96W TO 13N98W TO 11N98W TO
12N95W TO 13N94W TO 16N94W... N TO NE WINDS 20 TO 30 KT. SEAS 2.5
TO 3.0 M.
.48 HOUR FORECAST LITTLE CHANGE.

GULF OF TEHUANTEPEC GALE WARNING: A 1028 MB HIGH IS ANALYZED
OVER N MEXICO, MAINTAINING A STRONG PRESSURE GRADIENT OVER THE
TEHUANTEPEC REGION, RESULTING IN WINDS OF 35 TO 40 KT CONTINUING
THROUGH THE TEHUANTEPEC REGION ALONG WITH ROUGH SEAS OF UP TO 12
FT. THESE GAP WINDS WILL CONTINUE TO DECREASE TODAY AS THE HIGH
PRESSURE WEAKENS AND SLIDES TO THE EAST, BUT WILL REMAIN ABOVE
GALE FORCE THROUGH TONIGHT. ROUGH SEAS GENERATED BY THESE GALES
WILL EXTEND SOUTHWARD TO AS FAR AS 04N TODAY BEFORE GRADUALLY
SUBSIDING. CONDITIONS WILL BRIEFLY IMPROVE WED BEFORE A STRONG
COLD FRONT MOVES THROUGH THE GULF OF AMERICA WED NIGHT,
SUPPORTING ANOTHER ROUND OF GALE-FORCE WINDS THURSDAY MORNING.
WINDS WITH THIS NEXT EVENT LOOK TO PEAK AT 40 TO 45 KT THURSDAY
EVENING, ALONG WITH VERY ROUGH SEAS UP TO 18 FT. MARINERS ARE
URGED TO TAKE THE NECESSARY ACTION TO AVOID THE HAZARDOUS MARINE
CONDITIONS BROUGHT ON BY THE GALE-FORCE WINDS.
REFER TO THE SPECIAL FEATURES SECTION ABOVE FOR DETAILS ON A
GALE WARNING FOR THE GULF OF TEHUANTEPEC REGION.
FOR THE FORECAST, GALE FORCE WINDS AND ROUGH SEAS WILL PREVAIL
IN THE GULF OF TEHUANTEPEC UNTIL TONIGHT. BY THU MORNING, GALE
FORCE NORTHERLY GAP WINDS WILL RESUME IN THE GULF OF TEHUANTEPEC
REGION DUE TO A STRONG RIDGE THAT WILL DEVELOP OVER THE GULF OF
AMERICA AND ACROSS EASTERN MEXICO IN THE WAKE OF A STRONG COLD
FRONT. ANOTHER ROUND OF GALE FORCE WINDS IS POSSIBLE IN THE
TEHUANTEPEC REGION THIS WEEKEND. MARINERS ARE URGED TO TAKE THE
NECESSARY ACTION TO AVOID THE HAZARDOUS MARINE CONDITIONS BROUGHT
ON BY THE GALE FORCE WINDS.

HIGH PRESSURE NORTH OF THE REGION CONTINUES TO SUPPORT FRESH TO
STRONG NORTHEAST TO EAST GAP WINDS IN THE GULF OF PAPAGAYO REGION
ALONG WITH 6-8 FT SEAS AT TIMES. SEAS OF SIMILAR HEIGHT
GENERATED BY GALES IN THE GULF OF TEHUANTEPEC ARE IMPACTING THE
OFFSHORE WATERS OF GUATEMALA AND EL SALVADOR. MODERATE TO FRESH
N WINDS ARE NOTED IN THE GULF OF PANAMA, CONFIRMED BY A RECENT
ASCAT PASS. MODERATE OR WEAKER WINDS AND SLIGHT SEAS ARE
ELSEWHERE. A 1010 MB LOW PRESSURE OFFSHORE WESTERN COLOMBIA IS
GENERATING SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WITHIN
100 NM OF SHORE.
FOR THE FORECAST, HIGH PRESSURE NORTH OF THE REGION WILL SUPPORT
FRESH TO STRONG NORTHEAST TO EAST WINDS IN THE GULF OF PAPAGAYO
REGION THROUGH THE WEEK. PULSING MODERATE TO FRESH NORTHERLY
WINDS ARE EXPECTED IN THE GULF OF PANAMA THROUGH THE WEEK. THE
STRONG GAP WIND EVENT IN THE GULF OF TEHUANTEPEC HAS GENERATED
6-8 FT SEAS OVER THE OFFSHORE WATERS OF GUATEMALA AND EL
SALVADOR. THESE SEAS WILL SUBSIDE TONIGHT AS THE NORTHWEST SWELL
DECAYS. OTHERWISE, GENTLE TO MODERATE BREEZES AND SLIGHT TO
MODERATE SEAS WILL PERSIST ELSEWHERE THROUGH THE FORECAST PERIOD.

FOR THE FORECAST, MODERATE TO FRESH TRADES WILL CONTINUE ACROSS
THE WESTERN PART OF THE AREA THROUGH THU. ROUGH SEAS IN THAT
REGION WILL GRADUALLY SUBSIDE DURING THAT PERIOD. OTHERWISE, THE
ONGOING GAP WIND EVENT IN THE GULF OF TEHUANTEPEC WILL BRING
ROUGH SEAS TO THE WATERS FROM 04N TO 12N BETWEEN 95W AND 110W
INTO TONIGHT BEFORE GRADUALLY DIMINISHING. A SET OF LONG-PERIOD
NORTHWEST SWELL IS EXPECTED TO BEGIN TO INTRUDE INTO THE FAR
WESTERN WATERS STARTING TONIGHT. ANOTHER SET OF LONG-PERIOD
NORTHWEST SWELL WILL LIKELY ENTER OUR NW WATERS FRI NIGHT.

SHORT-TERM TEHUANTEPEC
TODAY - NNW 22-27, Seas NNW 9.7-9.8 ft @ 8sec
TONITE - N 22-28, Seas NNW 6.1-6.3 ft @ 6sec
THURSDAY - NNW 31-39, Seas NNW 7.9-8.1 ft @ 7sec
THURSDAY NIGHT - N 22-27, Seas NNW 15-15.1 ft @ 9sec

LONG-TERM TEHUANTEPEC
FRIDAY - N 22-27, Seas NNW 15-15.1 ft @ 9sec
SATURDAY - NNW 25-31, Seas SSW 4.7-5.3 ft @ 13sec
SUNDAY - N 25-31, Seas NNW 7.4-7.7 ft @ 7sec
MONDAY - N 22-28, Seas N/A ?-? ft @ ?
TUESDAY - Not available yet