Tehuantepec Forecast

November 12, 2025, 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 16N94W TO 16N95W TO 16N96W TO 14N96W TO 14N95W TO 15N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 30 TO
40 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 14N94W TO 14N96W TO
12N100W TO 11N97W TO 14N94W NE WINDS 20 TO 30 KT. SEAS 3.5 TO
5.0 M. REMAINDER OF AREA WITHIN 12N89W TO 15N95W TO 14N104W TO
11N111W TO 02N106W TO 03N93W TO 12N89W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.0 M IN N TO NE SWELL.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N95W TO 15N94W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 30 TO 35
KT. SEAS LESS THAN 2.5 M. ELSEWHERE WITHIN 15N94W TO 15N96W TO
13N98W TO 11N97W TO 11N96W TO 13N94W TO 15N94W N TO NE WINDS 20
TO 30 KT. SEAS 2.5 TO 3.0 M. REMAINDER OF AREA WITHIN 13N107W TO
14N121W TO 03N109W TO 01N100W TO 04N96W TO 13N107W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN NE SWELL.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 13N97W TO 12N98W TO
12N96W TO 13N94W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.

.WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO 14N95W TO 15N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 30 TO
40 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 14N94W TO 14N96W TO
12N100W TO 11N97W TO 14N94W NE WINDS 20 TO 30 KT. SEAS 3.5 TO
5.0 M. REMAINDER OF AREA WITHIN 12N89W TO 15N95W TO 14N104W TO
11N111W TO 02N106W TO 03N93W TO 12N89W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.0 M IN N TO NE SWELL.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N95W TO 15N94W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 30 TO 35
KT. SEAS LESS THAN 2.5 M. ELSEWHERE WITHIN 15N94W TO 15N96W TO
13N98W TO 11N97W TO 11N96W TO 13N94W TO 15N94W N TO NE WINDS 20
TO 30 KT. SEAS 2.5 TO 3.0 M. REMAINDER OF AREA WITHIN 13N107W TO
14N121W TO 03N109W TO 01N100W TO 04N96W TO 13N107W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN NE SWELL.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 13N97W TO 12N98W TO
12N96W TO 13N94W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.

GULF OF TEHUANTEPEC GALE WARNING: A 1029 MB HIGH PRESSURE SYSTEM
OVER THE NE GULF OF AMERICA, ALONG WITH 1024 MB HIGH PRESSURE
OVER NORTH-CENTRAL MEXICO TOGETHER CONTINUE TO SUPPORT GALES
WITH WIND SPEEDS TO 40 KT ACROSS THE GULF OF TEHUANTEPEC, AS
OBSERVED BY A SCATTEROMETER SATELLITE PASS FROM LAST EVENING.
STRONG TO GALE- FORCE WINDS EXTEND DOWNSTREAM THE GULF OF
TEHUANTEPEC TO 10N AND WEST TO 100W. SEAS ARE CURRENTLY PEAKING
AROUND 14 FT (4.5 M) AND ROUGH SEAS EXTEND SOUTH TO 02N AND WEST
TO 110W. WINDS AND SEAS WILL DIMINISH AS THE HIGH PRESSURE
WEAKENS AND SHIFT EASTWARD IN THE NEXT FEW DAYS, BUT PULSES TO
GALE-FORCE WILL CONTINUE THROUGH ACROSS THE GULF OF TEHUANTEPEC
THU NIGHT. SEAS WILL GRADUALLY SUBSIDE, DECREASING BELOW 8 FT FRI
NIGHT.
PLEASE REFER TO THE SPECIAL FEATURES SECTION FOR ADDITIONAL
INFORMATION ON THE GALE WARNING IN THE GULF OF TEHUANTEPEC.
A 1018 MB HIGH PRESSURE SYSTEM IS NEAR GUADALUPE ISLAND NEAR
28N120W. THE WEAK PRESSURE GRADIENT SUPPORTS GENTLE TO LOCALLY
MODERATE NW WINDS AND MODERATE SEAS ACROSS THE BAJA CALIFORNIA
OFFSHORE WATERS. ELSEWHERE OUTSIDE OF THE GULF OF TEHUANTEPEC AND
DOWNSTREAM WATERS, MODERATE OR WEAKER WINDS AND SLIGHT TO
MODERATE SEAS ARE PREVALENT.
FOR THE FORECAST, THE GALE-FORCE N WINDS IN THE GULF OF
TEHUANTEPEC WILL CONTINUE TO PULSE INTO THU NIGHT. ROUGH TO VERY
ROUGH SEAS ACCOMPANY THESE GALES DOWNSTREAM. WINDS AND SEAS WILL
GRADUALLY DIMINISH THROUGH LATE FRI AS THE HIGH PRESSURE NORTH
OF THE AREA WEAKENS AND SHIFTS EASTWARD. FARTHER NORTH, A COLD
FRONT WILL MOVE ACROSS BAJA CALIFORNIA AND THE GULF OF CALIFORNIA
LATE THU THROUGH SAT. EXPECT FRESH TO STRONG SW GAP WINDS ACROSS
THE NORTHERN GULF OF CALIFORNIA AHEAD OF THE FRONT LATE SAT INTO
EARLY SUN. FRESH TO STRONG NW WINDS AND ROUGH SEAS TO 12 FT WILL
FOLLOW THE FRONT OFF BAJA CALIFORNIA LATE THU INTO SAT, BEFORE
SUBSIDING SUN.

HIGH PRESSURE NORTH OF THE REGION CONTINUES TO DOMINATE THE
BASIN. THE TIGHT PRESSURE GRADIENT BETWEEN THE AFOREMENTIONED
RIDGE AND LOWER PRESSURES IN THE DEEP TROPICS RESULT IN FRESH TO
STRONG N-NE WINDS IN THE GUATEMALA AND EL SALVADOR OFFSHORE
WATERS, CAPTURED BY AN EARLIER SCATTEROMETER SATELLITE PASS.
FARTHER WEST, A STRONG GAP WIND EVENT IN THE GULF OF TEHUANTEPEC
IS PRODUCING SEAS TO 12 FT AND FRESH TO LOCALLY STRONG N WINDS
IN THE WATERS OFF GUATEMALA BEYOND 60 NM.
FOR THE FORECAST, FRESH TO STRONG GAP WINDS WILL PULSE EACH NIGHT
AND MORNING OVER THE NEXT FEW DAYS ACROSS THE PAPAGAYO REGION AS
A STRONG HIGH PRESSURE BUILDS INTO THE NW CARIBBEAN. OFFSHORE OF
GUATEMALA, EXPECT ROUGH SEAS THROUGH FRI AS GALE-FORCE GAP WIND
EVENT CONTINUES IN THE NEARBY GULF OF TEHUANTEPEC. ELSEWHERE,
MODERATE OR LIGHTER WINDS AND MODERATE SEAS WILL PERSIST INTO THE
WEEKEND.

EAST OF 110W, AN EARLIER SCATTEROMETER SATELLITE PASS SHOW THAT
A STRONG GAP WIND EVENT IN THE GULF OF TEHUANTEPEC IS SUPPORTING
FRESH TO STRONG NE-E WINDS NORTH OF 05N. SEAS IN THESE WATERS
ARE 8-12 FT. DIVERGENT FLOW ALOFT ASSOCIATED WITH AN UPPER
TROUGH BETWEEN 105W AND 110W IS SUPPORTING CLUSTERS OF SHOWERS
AND THUNDERSTORMS FROM 12N TO 16N BETWEEN 105W AND 110W. LOW
LEVEL CONVERGENT FLOW ENHANCED BY THE OUTFLOW FROM THE TEHUANTEPEC
GAP WIND EVENT IS SUPPORTING SHOWERS AND THUNDERSTORMS ALONG THE
MONSOON TROUGH AND ITCZ FROM 07N TO 10N BETWEEN 90W TO 115W.
MEANWHILE, A SURFACE TROUGH ALONG 125W IN THE TRADE WIND BELT
SUSTAINS 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. A 1012 MB OCCLUDED LOW IS
CENTERED NEAR 27N137W, SUPPORTING FRESH WINDS A LOCALLY ROUGH
SEAS IN THE VICINITY. ELSEWHERE, WEAK HIGH PRESSURE DOMINATES
AND SUSTAINS MODERATE OR LIGHTER WINDS AND MODERATE SEAS.

SHORT-TERM TEHUANTEPEC
TODAY - N 18-22, Seas SW 4.7-5.6 ft @ 14sec
TONITE - NNW 18-22, Seas SW 5-5.9 ft @ 14sec
THURSDAY - N 18-23, Seas SW 4.1-5.1 ft @ 14sec
THURSDAY NIGHT - N 19-24, Seas N/A ?-? ft @ ?

LONG-TERM TEHUANTEPEC
FRIDAY - N 19-24, Seas N/A ?-? ft @ ?
SATURDAY - N 18-22, Seas N/A ?-? ft @ ?
SUNDAY - ESE 4-5, Seas N/A ?-? ft @ ?
MONDAY - S 4-5, Seas N/A ?-? ft @ ?
TUESDAY - S 6-8, Seas N/A ?-? ft @ ?