Tehuantepec Forecast

November 12, 2025, 3:01 am (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 15N94W TO 16N95W TO 14N96W TO 13N96W TO 14N95W TO
15N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO
45 KT. SEAS 4 TO 5.5 M. ELSEWHERE WITHIN 16N94W TO 16N96W TO
14N97W TO 11N102W TO 10N98W TO 11N95W TO 16N94W NE WINDS 20 TO
30 KT. SEAS 3.5 TO 5 M. REMAINDER OF AREA WITHIN 12N91W TO
16N94W TO 15N103W TO 09N107W TO 06N99W TO 06N95W TO
12N91W WINDS 20 KT OR LESS. SEAS 2.5 TO 4 M IN N TO NE SWELL.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 15N95W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35
KT. SEAS 3 TO 3.5 M. ELSEWHERE WITHIN 16N93W TO 16N95W TO 16N96W
TO 14N96W TO 14N95W TO 15N93W TO 16N93W N WINDS 20 TO 30 KT. SEAS
2.5 TO 3 M. REMAINDER OF AREA WITHIN 10N88W TO 16N94W TO 14N111W
TO 10N115W TO 01S102W TO 02N92W TO 10N88W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3 M IN NE SWELL.
.48 HOUR FORECAST WITHIN 16N95W TO 16N96W TO 15N96W TO 15N95W TO
16N95W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35
KT. SEAS 3 TO 3.5 M. ELSEWHERE WITHIN 16N94W TO 16N95W TO 15N96W
TO 14N96W TO 14N95W TO 15N94W TO 16N94W N WINDS 20 TO 30 KT. SEAS
2.5 TO 3 M. REMAINDER OF AREA WITHIN 13N94W TO 16N94W TO 16N95W
TO 11N98W TO 09N98W TO 10N95W TO 13N94W WINDS 20 KT OR LESS. SEAS
2.5 TO 3 M IN N TO NE SWELL. WITHIN 11N108W TO 15N115W TO
13N122W TO 06N119W TO 03N115W TO 03N109W TO 11N108W WINDS 20 KT
OR LESS. SEAS TO 2.5 M IN NE TO E SWELL.

.WITHIN 15N94W TO 16N95W TO 14N96W TO 13N96W TO 14N95W TO
15N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO
45 KT. SEAS 4 TO 5.5 M. ELSEWHERE WITHIN 16N94W TO 16N96W TO
14N97W TO 11N102W TO 10N98W TO 11N95W TO 16N94W NE WINDS 20 TO
30 KT. SEAS 3.5 TO 5 M. REMAINDER OF AREA WITHIN 12N91W TO
16N94W TO 15N103W TO 09N107W TO 06N99W TO 06N95W TO
12N91W WINDS 20 KT OR LESS. SEAS 2.5 TO 4 M IN N TO NE SWELL.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 15N95W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35
KT. SEAS 3 TO 3.5 M. ELSEWHERE WITHIN 16N93W TO 16N95W TO 16N96W
TO 14N96W TO 14N95W TO 15N93W TO 16N93W N WINDS 20 TO 30 KT. SEAS
2.5 TO 3 M. REMAINDER OF AREA WITHIN 10N88W TO 16N94W TO 14N111W
TO 10N115W TO 01S102W TO 02N92W TO 10N88W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3 M IN NE SWELL.
.48 HOUR FORECAST WITHIN 16N95W TO 16N96W TO 15N96W TO 15N95W TO
16N95W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35
KT. SEAS 3 TO 3.5 M. ELSEWHERE WITHIN 16N94W TO 16N95W TO 15N96W
TO 14N96W TO 14N95W TO 15N94W TO 16N94W N WINDS 20 TO 30 KT. SEAS
2.5 TO 3 M. REMAINDER OF AREA WITHIN 13N94W TO 16N94W TO 16N95W
TO 11N98W TO 09N98W TO 10N95W TO 13N94W WINDS 20 KT OR LESS. SEAS
2.5 TO 3 M IN N TO NE SWELL. WITHIN 11N108W TO 15N115W TO
13N122W TO 06N119W TO 03N115W TO 03N109W TO 11N108W WINDS 20 KT
OR LESS. SEAS TO 2.5 M IN NE TO E SWELL.

GULF OF TEHUANTEPEC GALE WARNING: A COLD AIRMASS ASSOCIATED WITH
A 1027 MB HIGH PRESSURE OVER THE NE GULF OF AMERICA CONTINUES TO
SUPPORT STRONG GALES WITH WIND SPEEDS TO 45 KT ACROSS THE GULF
OF TEHUANTEPEC. STRONG TO GALE-FORCE WINDS EXTEND DOWNSTREAM THE
GULF OF TEHUANTEPEC TO 09N AND WEST TO 103W. SEAS ARE CURRENTLY
PEAKING AROUND 18 FT (5.5 M) AND ROUGH SEAS EXTEND SOUTH TO 05N
AND WEST TO 107W. WINDS AND SEAS WILL DIMINISH AS THE HIGH
PRESSURE WEAKENS AND SHIFT EASTWARD THROUGH THE LATTER PART OF
THE WEEK, BUT PULSES TO GALE- FORCE WILL CONTINUE THROUGH ACROSS
THE GULF OF TEHUANTEPEC THU NIGHT. SEAS WILL GRADUALLY SUBSIDE,
DECREASING BELOW 8 FT LATE FRI.
PLEASE REFER TO THE SPECIAL FEATURES SECTION FOR ADDITIONAL
INFORMATION ON THE GALE WARNING IN THE GULF OF TEHUANTEPEC.
A 1019 MB HIGH PRESSURE SYSTEM CENTERED SEVERAL HUNDRED MILES
WEST OF BAJA CALIFORNIA DOMINATES THE OFFSHORE WATERS OF MEXICO,
OUTSIDE OF THE GULF OF TEHUANTEPEC. MODERATE NW WINDS AND
MODERATE SEAS ARE PREVALENT ACROSS THE BAJA CALIFORNIA NORTE
OFFSHORE WATERS, WHILE LIGHT TO GENTLE WINDS AND MODERATE SEAS
ARE PRESENT OFFSHORE BAJA CALIFORNIA SUR. ELSEWHERE, MODERATE OR
WEAKER WINDS AND SLIGHT TO MODERATE SEAS ARE EVIDENT.
SWELL AND MODERATE TO LOCALLY STRONG N WINDS GENERATED FROM THE
STRONG GALES OVER THE GULF OF TEHUANTEPEC ARE AFFECTING THE
WATERS OFF GUATEMALA BEYOND 60 NM. FARTHER EAST, FRESH TO STRONG
EASTERLY GAP WINDS AND SEAS TO NEAR 7 FT ARE FOUND ACROSS THE
GULF OF PAPAGAYO, SUPPORTED BY HIGH PRESSURE OVER THE NE GULF OF
AMERICA. ELSEWHERE, GENTLE TO MODERATE SOUTHERLY BREEZES AND
MODERATE SEAS IN S SWELL ARE PREVALENT.
FOR THE FORECAST, FRESH TO STRONG GAP WINDS WILL PULSE EACH NIGHT
AND MORNING THROUGH LATE THIS WEEK ACROSS THE PAPAGAYO REGION AS
A STRONG HIGH PRESSURE BUILDS INTO THE NW CARIBBEAN. FRESH N TO
NE WINDS WILL OCCUR ACROSS AND DOWNWIND OF THE GULF OF FONSECA
AND SOUTH OF EL SALVADOR OVERNIGHT. OFFSHORE OF GUATEMALA, EXPECT
ROUGH TO VERY ROUGH SEAS THROUGH LATE FRI AS GALE-FORCE GAP WIND
EVENT CONTINUES IN THE NEARBY GULF OF TEHUANTEPEC.

IN THE EASTERN WATERS, A STRONG GAP WIND EVENT IN THE GULF OF
TEHUANTEPEC IS SUPPORTING FRESH TO STRONG NE-E WINDS AND ROUGH
SEAS NORTH OF 05N AND EAST OF 107W. A WEAK AREA OF LOW PRESSURE
AND STATIONARY FRONTAL BOUNDARY OVER THE FAR WESTERN WATERS
CONTINUE TO PRODUCE A FEW SHOWERS IN THE REGION. MODERATE TO
LOCALLY FRESH SOUTHERLY WINDS AND ROUGH SEAS ARE FOUND NORTH OF
22N AND WEST OF 130W. MEANWHILE, A SURFACE TROUGH ALONG 123W IN
THE TRADES WATERS SUPPORTS MODERATE TO LOCALLY FRESH EASTERLY
WINDS AND ROUGH SEAS SOUTH OF 20N AND BETWEEN 115W AND 135W.
SOUTH OF THE MONSOON TROUGH AND ITCZ, MODERATE TO LOCALLY FRESH
SOUTHERLY WINDS AND MODERATE TO ROUGH SEAS ARE PRESENT.
ELSEWHERE, A WEAK HIGH PRESSURE DOMINATES AND SUSTAINS MODERATE
OR LIGHTER WINDS AND MODERATE SEAS.
FOR THE FORECAST, OTHER THAN THE LARGE NW SWELL FOLLOWING THE
COLD FRONT DESCRIBED IN THE SPECIAL FEATURES SECTION, THE MAIN
FORECAST ISSUE EAST OF 110W WILL BE THE PLUME OF WINDS AND SWELL
GENERATED BY THE GALE-FORCE WIND EVENT IN THE GULF OF TEHUANTEPEC,
WITH FRESH TO STRONG WINDS AND ROUGH SEAS EAST OF 110W FROM 02N
TO 14N THROUGH MID WEEK. THE LARGE SOUTHERLY SWELL WILL SUBSIDE,
BUT A COMPONENT WILL MIX WITH THE SWELL EMERGING OUT OF
TEHUANTEPEC ALONG WITH THE AFOREMENTIONED NW SWELL.

SHORT-TERM TEHUANTEPEC
TODAY - N 21-26, Seas SW 4.7-5.6 ft @ 14sec
TONITE - N 17-21, Seas SW 3.9-4.9 ft @ 14sec
THURSDAY - N 18-23, Seas N/A ?-? ft @ ?
THURSDAY NIGHT - N 18-22, Seas N/A ?-? ft @ ?

LONG-TERM TEHUANTEPEC
FRIDAY - N 18-23, Seas N/A ?-? ft @ ?
SATURDAY - N 14-17, Seas N/A ?-? ft @ ?
SUNDAY - NW 6-8, Seas N/A ?-? ft @ ?
MONDAY - SW 5-6, Seas N/A ?-? ft @ ?
TUESDAY - S 4-5, Seas N/A ?-? ft @ ?