Weather Summary for Mexico and Central America

September 15, 2026, 8:00 pm (UTC: -05:00)
Subject: Weather Summary for Mexico and Central America

**OUTSIDE BAJA 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 15N96W TO 13N96W TO 14N94W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS 20
TO 30 KT. SEAS 2.5 M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 13N97W TO 11N97W TO
13N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.30 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N95W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 30 TO 35
KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 16N94W TO 16N95W TO
16N96W TO 14N96W TO 14N95W TO 14N94W TO 16N94W N TO NE WINDS 20
TO 30 KT. SEAS 2.5 TO 3.0 M.
.42 HOUR FORECAST LITTLE CHANGE...EXCEPT WINDS BELOW GALE FORCE.
.48 HOUR FORECAST WITHIN 16N94W TO 16N96W TO 12N99W TO 11N99W TO
11N97W TO 12N95W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
SHORT-TERM ENSENADA - CEDROS
TODAY - NW 9-11, Seas NW 2.1-2.1 ft @ 7sec
TONITE - NW 9-11, Seas NW 2.6-2.6 ft @ 8sec
WEDNESDAY - NW 9-11, Seas NW 2.6-2.6 ft @ 8sec
WEDNESDAY NIGHT - NNW 9-11, Seas NW 1.8-3.4 ft @ 8sec

SHORT-TERM CEDROS - SAN LAZAROS
TODAY - NW 5-6, Seas NW 0.4-0.7 ft @ 4sec
TONITE - WNW 6-7, Seas NW 0.8-0.8 ft @ 4sec
WEDNESDAY - NW 8-10, Seas WNW 2.1-2.3 ft @ 8sec
WEDNESDAY NIGHT - NNW 10-12, Seas WNW 2.6-2.8 ft @ 8sec

SHORT-TERM SAN LAZAROS - CABO FALSO
TODAY - NW 3-4, Seas ESE 0-0.2 ft @ 4sec
TONITE - NW 5-6, Seas ESE 0-0.2 ft @ 4sec
WEDNESDAY - NW 9-11, Seas S 0.6-0.8 ft @ 8sec
WEDNESDAY NIGHT - NW 14-17, Seas WNW 1.8-1.9 ft @ 3sec

LONG-TERM OUTSIDE OF THE BAJA
THURSDAY - Northern 1/3 NNW 13-16, Seas WNW 3.7-3.9 ft @ 8sec, Middle 2/3 NW 12-15, Seas NW 3.5-3.5 ft @ 8sec, Southern 1/3 NW 14-17, Seas WNW 1.8-1.9 ft @ 3sec
FRIDAY - Northern 1/3 NNW 15-19, Seas NW 5.2-5.3 ft @ 6sec, Middle 2/3 NW 14-17, Seas NW 4.3-4.4 ft @ 6sec, Southern 1/3 NW 14-17, Seas WNW 2.3-2.8 ft @ 4sec
SATURDAY - Northern 1/3 NNW 15-19, Seas NW 5.8-5.8 ft @ 6sec, Middle 2/3 NW 14-17, Seas NW 5.3-5.4 ft @ 7sec, Southern 1/3 WNW 7-9, Seas W 0-2.9 ft @ 7sec
SUNDAY - Northern 1/3 NNW 13-16, Seas NW 4.7-4.8 ft @ 7sec, Middle 2/3 NW 11-14, Seas NW 4.3-4.6 ft @ 7sec, Southern 1/3 WNW 9-11, Seas SSW 2.4-4.1 ft @ 17sec
MONDAY - Northern 1/3 NNW 13-16, Seas SW 4.4-5.2 ft @ 17sec, Middle 2/3 NW 12-15, Seas SSW 4.5-5.5 ft @ 16sec, Southern 1/3 WNW 14-17, Seas SSW 3.3-4.8 ft @ 16sec

**SEA OF CORTEZ FORECAST**

FRESH TO STRONG N TO NE GAP WINDS, AND SEAS OF 6-8 FT, ARE OVER
THE GULF OF TEHUANTEPEC. MODERATE TO FRESH WINDS ARE OVER THE
NORTHERN GULF OF CALIFORNIA. GENTLE TO MODERATE WINDS AND 4-7 FT
ARE NOTED ELSEWHERE, EXCEPT 1-3 FT IN THE CENTRAL AND SOUTHERN
GULF.
FOR THE FORECAST, PLEASE SEE THE SPECIAL FEATURES SECTION FOR
INFORMATION ABOUT THE GALE WARNING IN THE GULF OF TEHUANTEPEC.
ELSEWHERE, FRESH SE TO S WINDS PULSE ACROSS THE NORTHERN GULF OF
CALIFORNIA THROUGH WED. LARGE N SWELL OFF BAJA CALIFORNIA NORTE
NEAR GUADALUPE ISLAND WILL SUBSIDE THROUGH MID WEEK.
SHORT-TERM SEA OF CORTEZ NORTHERN HALF (north of 27N)
TODAY - WSW 7-9, Seas WSW 0.9-0.9 ft @ 2sec
TONITE - W 6-7, Seas W 0.9-0.9 ft @ 3sec
WEDNESDAY - W 9-11, Seas WSW 1.4-1.6 ft @ 8sec
WEDNESDAY NIGHT - N 10-13, Seas SW 0-1.9 ft @ 8sec

SHORT-TERM SEA OF CORTEZ SOUTHERN HALF (south of 27N)
TODAY - SW 1-1, Seas SE 0-0.5 ft @ 2sec
TONITE - WNW 4-5, Seas SE 0-0.4 ft @ 3sec
WEDNESDAY - NW 6-7, Seas SSE 0.7-0.8 ft @ 7sec
WEDNESDAY NIGHT - NW 8-10, Seas SSE 1-1.1 ft @ 7sec

LONG-TERM SEA OF CORTEZ
THURSDAY - Northern Half NNW 14-17, Seas W 2.2-2.4 ft @ 4sec, Southern Half NW 9-11, Seas SSE 1.4-1.7 ft @ 7sec
FRIDAY - Northern Half NNW 17-21, Seas W 0-2.7 ft @ 6sec, Southern Half NW 9-11, Seas NNW 1.7-1.9 ft @ 4sec
SATURDAY - Northern Half N 17-21, Seas W 0-3.2 ft @ 6sec, Southern Half SW 7-9, Seas S 0.6-1.9 ft @ 7sec
SUNDAY - Northern Half N 14-18, Seas W 0-2.9 ft @ 5sec, Southern Half SW 7-9, Seas SSW 0-1.9 ft @ 7sec
MONDAY - Northern Half WNW 13-16, Seas SSW 3.5-4.3 ft @ 16sec, Southern Half SW 6-8, Seas SW 0-3.2 ft @ 17sec

**SEA OF CORTEZ SOUTHERN CROSSING FORECAST**
SHORT-TERM SOUTHERN CROSSING (along 23N)
TODAY - SW 1-1, Seas SE 0-0.5 ft @ 2sec
TONITE - WNW 4-5, Seas SE 0-0.4 ft @ 3sec
WEDNESDAY - NW 6-7, Seas SSE 0.7-0.8 ft @ 7sec
WEDNESDAY NIGHT - NW 8-10, Seas SSE 1-1.1 ft @ 7sec

LONG-TERM SOUTHERN CROSSING
THURSDAY - NW 9-11, Seas SSE 1.4-1.7 ft @ 7sec
FRIDAY - NW 9-11, Seas NNW 1.7-1.9 ft @ 4sec
SATURDAY - SW 7-9, Seas S 0.6-1.9 ft @ 7sec
SUNDAY - SW 7-9, Seas SSW 0-1.9 ft @ 7sec
MONDAY - SW 6-8, Seas SW 0-3.2 ft @ 17sec

**MAZATLAN TO BANDERAS BAY FORECAST**
SHORT-TERM MAZATLAN TO BAHIA BANDERAS
TODAY - NW 4-5, Seas ESE 0-0.2 ft @ 2sec
TONITE - NNW 5-6, Seas S 0-0.1 ft @ 5sec
WEDNESDAY - NW 10-13, Seas NW 1.1-1.2 ft @ 3sec
WEDNESDAY NIGHT - N 9-11, Seas SSE 0.9-1 ft @ 7sec

LONG-TERM MAZATLAN TO BAHIA BANDERAS
THURSDAY - NW 12-15, Seas NW 1.8-1.8 ft @ 3sec
FRIDAY - SW 10-13, Seas S 0.9-1.3 ft @ 7sec
SATURDAY - SW 14-18, Seas SSW 0.8-1.8 ft @ 7sec
SUNDAY - S 6-8, Seas SSW 0-1.6 ft @ 7sec
MONDAY - WSW 6-7, Seas SSW 0-2.6 ft @ 17sec

**CABO CORRIENTES FORECAST**
SHORT-TERM CABO CORRIENTES TO MANZANILLO
TODAY - NNW 2-3, Seas SSE 0-0.2 ft @ 5sec
TONITE - N 6-7, Seas SSE 0-0.4 ft @ 5sec
WEDNESDAY - NNE 10-13, Seas SSE 0.2-0.9 ft @ 7sec
WEDNESDAY NIGHT - N 11-14, Seas SSE 0.9-1.4 ft @ 7sec

LONG-TERM CABO CORRIENTES TO MANZANILLO
THURSDAY - N 11-14, Seas SSE 0.9-1.4 ft @ 7sec
FRIDAY - SSE 13-16, Seas SSW 0-1.6 ft @ 7sec
SATURDAY - S 11-14, Seas SSW 0.9-2.2 ft @ 7sec
SUNDAY - S 6-8, Seas SSW 0-2.1 ft @ 7sec
MONDAY - W 6-7, Seas SSW 0-3.7 ft @ 17sec

**MEXICAN RIVIERA FORECAST**
SHORT-TERM MEXICAN RIVIERA MANZANILLO TO BAHIAS DE HUATULCO
TODAY - W 7-9, Seas S 0-2.6 ft @ 6sec
TONITE - WNW 7-9, Seas S 0-2.4 ft @ 6sec
WEDNESDAY - WNW 12-15, Seas S 1.3-2 ft @ 6sec
WEDNESDAY NIGHT - NW 9-11, Seas W 0-2.1 ft @ 4sec

LONG-TERM MEXICAN RIVIERA MANZANILLO TO BAHIAS DE HUATULCO
THURSDAY - WNW 10-12, Seas S 1.2-1.7 ft @ 6sec
FRIDAY - S 15-19, Seas S 0-1.7 ft @ 6sec
SATURDAY - W 7-9, Seas S 1.5-2.2 ft @ 6sec
SUNDAY - WNW 11-14, Seas SW 1.6-4.1 ft @ 18sec
MONDAY - NW 15-19, Seas SW 1.7-4.2 ft @ 17sec

**TEHUANTEPEC FORECAST**

.WITHIN 16N94W TO 16N95W TO 15N96W TO 13N96W TO 14N94W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS 20
TO 30 KT. SEAS 2.5 M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 13N97W TO 11N97W TO
13N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.30 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N95W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 30 TO 35
KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 16N94W TO 16N95W TO
16N96W TO 14N96W TO 14N95W TO 14N94W TO 16N94W N TO NE WINDS 20
TO 30 KT. SEAS 2.5 TO 3.0 M.
.42 HOUR FORECAST LITTLE CHANGE...EXCEPT WINDS BELOW GALE FORCE.
.48 HOUR FORECAST WITHIN 16N94W TO 16N96W TO 12N99W TO 11N99W TO
11N97W TO 12N95W 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: THE PRESSURE GRADIENT BETWEEN HIGH
PRESSURE BUILDING OVER SOUTHERN MEXICO AND THE EASTERN NORTH
PACIFIC MONSOON TROUGH WILL SUPPORT STRONG TO NEAR-GALE FORCE N
TO NE GAP WINDS ACROSS THE GULF OF TEHUANTEPEC INTO WED, AND WILL
REACH MINIMAL GALE FORCE WED NIGHT. ROUGH SEAS WILL ACCOMPANY
THESE GAP WINDS.

PLEASE SEE SPECIAL FEATURES SECTION ABOVE FOR MORE ON A GALE
WARNING IN THE GULF OF TEHUANTEPEC.
FRESH TO STRONG N TO NE GAP WINDS, AND SEAS OF 6-8 FT, ARE OVER
THE GULF OF TEHUANTEPEC. MODERATE TO FRESH WINDS ARE OVER THE
NORTHERN GULF OF CALIFORNIA. GENTLE TO MODERATE WINDS AND 4-7 FT
ARE NOTED ELSEWHERE, EXCEPT 1-3 FT IN THE CENTRAL AND SOUTHERN
GULF.
FOR THE FORECAST, PLEASE SEE THE SPECIAL FEATURES SECTION FOR
INFORMATION ABOUT THE GALE WARNING IN THE GULF OF TEHUANTEPEC.
ELSEWHERE, FRESH SE TO S WINDS PULSE ACROSS THE NORTHERN GULF OF
CALIFORNIA THROUGH WED. LARGE N SWELL OFF BAJA CALIFORNIA NORTE
NEAR GUADALUPE ISLAND WILL SUBSIDE THROUGH MID WEEK.
SHORT-TERM TEHUANTEPEC
TODAY - N 19-24, Seas NNW 0-3.4 ft @ 6sec
TONITE - N 18-23, Seas NNW 4.3-4.3 ft @ 6sec
WEDNESDAY - N 21-26, Seas NNW 5.9-6 ft @ 6sec
WEDNESDAY NIGHT - N 17-21, Seas NNW 5.2-5.3 ft @ 6sec

LONG-TERM TEHUANTEPEC
THURSDAY - NNW 21-26, Seas NNW 4-4.2 ft @ 6sec
FRIDAY - N 13-16, Seas NNW 0-4.3 ft @ 6sec
SATURDAY - W 10-12, Seas SSE 0.6-1.5 ft @ 7sec
SUNDAY - WNW 14-18, Seas SSE 0.7-1.5 ft @ 7sec
MONDAY - WSW 9-11, Seas SW 2-4.3 ft @ 17sec

**GAP WINDS FORECAST**

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM 10N85W TO 09N116W. IT RESUMES
FROM 13N128W TO 13N139W. SCATTERED MODERATE CONVECTION IS NOTED
FROM 00N TO 12N EAST OF 132W, AND FROM 10N TO 16N BETWEEN 135W
AND 140W.

THE AXIS OF A TROPICAL WAVE IS NEAR 106W FROM 02N TO 17N, MOVING
WEST AT 10 TO 15 KT. NEARBY CONVECTION IS DISCUSSED IN THE
ITCZ/MONSOON TROUGH SECTION BELOW.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
GULF OF TEHUANTEPEC GALE WARNING: THE PRESSURE GRADIENT BETWEEN HIGH
PRESSURE BUILDING OVER SOUTHERN MEXICO AND THE EASTERN NORTH
PACIFIC MONSOON TROUGH WILL SUPPORT STRONG TO NEAR-GALE FORCE N
TO NE GAP WINDS ACROSS THE GULF OF TEHUANTEPEC INTO WED, AND WILL
REACH MINIMAL GALE FORCE WED NIGHT. ROUGH SEAS WILL ACCOMPANY
THESE GAP WINDS.

THE MONSOON TROUGH EXTENDS FROM 10N85W TO 09N116W. IT RESUMES
FROM 13N128W TO 13N139W. SCATTERED MODERATE CONVECTION IS NOTED
FROM 00N TO 12N EAST OF 132W, AND FROM 10N TO 16N BETWEEN 135W
AND 140W.

FOR THE FORECAST, THE PRESSURE GRADIENT BETWEEN A RIDGE NORTH OF
THE AREA AND THE EASTERN NORTH PACIFIC MONSOON TROUGH WILL
SUPPORT PULSING FRESH TO OCCASIONALLY STRONG EASTERLY WINDS AND
MODERATE TO ROUGH SEAS ACROSS THE PAPAGAYO REGION THROUGH MID
WEEK, THEN PULSING TO MODERATE TO FRESH THEREAFTER. MODERATE
WINDS AND SEAS WILL PREVAIL ELSEWHERE.

GULF OF TEHUANTEPEC GALE WARNING: THE PRESSURE GRADIENT BETWEEN HIGH
PRESSURE BUILDING OVER SOUTHERN MEXICO AND THE EASTERN NORTH
PACIFIC MONSOON TROUGH WILL SUPPORT STRONG TO NEAR-GALE FORCE N
TO NE GAP WINDS ACROSS THE GULF OF TEHUANTEPEC INTO WED, AND WILL
REACH MINIMAL GALE FORCE WED NIGHT. ROUGH SEAS WILL ACCOMPANY
THESE GAP WINDS.

FRESH TO STRONG N TO NE GAP WINDS, AND SEAS OF 6-8 FT, ARE OVER
THE GULF OF TEHUANTEPEC. MODERATE TO FRESH WINDS ARE OVER THE
NORTHERN GULF OF CALIFORNIA. GENTLE TO MODERATE WINDS AND 4-7 FT
ARE NOTED ELSEWHERE, EXCEPT 1-3 FT IN THE CENTRAL AND SOUTHERN
GULF.

.WITHIN 11N86W TO 12N87W TO 11N87W TO 10N87W TO 10N85W TO 10N86W
TO 11N86W...INCLUDING THE GULF OF PAPAGAYO... NE WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 11N86W TO 12N87W TO 11N87W TO 10N87W TO
10N85W TO 10N86W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO... E
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 11N86W TO 12N87W TO 11N87W TO 10N87W TO
10N85W TO 10N86W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO... E
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.

FRESH TO STRONG EASTERLY WINDS, AND MODERATE SEAS, PREVAIL
ACROSS THE GULF OF PAPAGAYO REGION, EXTENDING DOWNSTREAM TO NEAR
90W. MODERATE TO FRESH WINDS EXTEND DOWNSTREAM FROM THE GULF OF
PAPAGAYO TO THE OUTER OFFSHORE WATERS OF EL SALVADOR AND
GUATEMALA. ELSEWHERE, MODERATE OR WEAKER WINDS AND MODERATE SEAS
ARE NOTED.
SHORT-TERM GAP WINDS (Near 11N 86W)
TODAY - ENE 21-26, Seas NE 2.4-2.4 ft @ 4sec
TONITE - ENE 18-22, Seas ENE 1.7-1.8 ft @ 4sec
WEDNESDAY - ENE 19-24, Seas ENE 2.5-2.5 ft @ 4sec
WEDNESDAY NIGHT - NE 18-23, Seas ENE 1.5-1.5 ft @ 3sec

LONG-TERM GAP WINDS (Near 11N 86W)
THURSDAY - NE 18-23, Seas ENE 1.5-1.5 ft @ 3sec
FRIDAY - ENE 17-21, Seas ENE 1.1-1.3 ft @ 3sec
SATURDAY - ENE 16-20, Seas ENE 0.9-1.2 ft @ 2sec
SUNDAY - NW 12-15, Seas SSW 0.9-1.5 ft @ 6sec
MONDAY - E 7-9, Seas SW 0-3.3 ft @ 19sec

** TSUNAMI INFO **
tsunami
See https://www.tsunami.gov/events/xml/PHEBAtom.xml PTCW - Tsunami warnings and info for Pacific Ocean (24.7 days old)
Updated 22 Aug 2026 08:30:40 GMT (24.7 days old)
SCOTIA SEA

https://www.tsunami.gov/events/PHEB/2026/08/22/26234000/1/WEPA42/WEPA42.txt

Incident past 2 days, follow link for details.

See https://www.tsunami.gov/events/xml/PAAQAtom.xml NWS West Coast/Alaska Tsunami Center Bulletins (0.6 days old)
Updated 15 Sep 2026 09:56:33 GMT (0.6 days old)
45 miles SW of Barter I., Alaska

https://www.tsunami.gov/events/PAAQ/2026/09/15/tlegq7/1/WEAK53/WEAK53.txt

WEAK53 PAAQ 150956
TIBAK1

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
156 AM AKDT Tue Sep 15 2026

...THIS IS A TSUNAMI INFORMATION STATEMENT FOR ALASKA AND
THE CANADIAN ARCTIC REGION...

EVALUATION
----------
* There is NO tsunami danger from this earthquake.

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* The following parameters are based on a rapid preliminary
assessment of the earthquake and changes may occur.

* Magnitude 4.3
* Origin Time 0152 AKDT Sep 15 2026
0252 PDT Sep 15 2026
0952 UTC Sep 15 2026
* Coordinates 69.6 North 144.5 West
* Depth 24 miles
* Location 45 miles SW of Barter I., Alaska
340 miles NE of Fairbanks, Alaska

ADDITIONAL INFORMATION AND NEXT UPDATE
--------------------------------------
* Further information will be issued by the United States
Geological Survey (earthquake.usgs.gov) or the appropriate
regional seismic network.

* This will be the only U.S. National Tsunami Warning Center
message issued for this event unless additional information
becomes available.

$$