Weather Summary for Mexico and Central America

December 20, 2025, 9:03 am (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 16N96W TO 14N97W TO 13N96W TO 14N95W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO
30 KT WITH FREQUENT GUSTS TO GALE FORCE. SEAS 2.5 TO 3 M.
.12 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO
14N95W TO 15N94W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
SHORT-TERM ENSENADA - CEDROS
TODAY - Not available yet
TONITE - Not available yet
SUNDAY - NNW 9-11, Seas NW 3.1-5.2 ft @ 14sec
SUNDAY NIGHT - NNW 6-8, Seas NW --? ft @ 11sec

SHORT-TERM CEDROS - SAN LAZAROS
TODAY - Not available yet
TONITE - Not available yet
SUNDAY - Not available yet
SUNDAY NIGHT - Not available yet

SHORT-TERM SAN LAZAROS - CABO FALSO
TODAY - Not available yet
TONITE - Not available yet
SUNDAY - Not available yet
SUNDAY NIGHT - Not available yet

LONG-TERM OUTSIDE OF THE BAJA
MONDAY - Northern 1/3 NNW 7-9, Seas NW 2-4.6 ft @ 12sec, Middle 2/3 Not available yet, Southern 1/3 Not available yet
TUESDAY - Northern 1/3 NNW 5-6, Seas NW 1.7-4.4 ft @ 12sec, Middle 2/3 Not available yet, Southern 1/3 Not available yet
WEDNESDAY - Northern 1/3 S 8-10, Seas WNW 1.1-3.9 ft @ 13sec, Middle 2/3 Not available yet, Southern 1/3 Not available yet
THURSDAY - Northern 1/3 SSW 7-9, Seas WNW 1.2-3.8 ft @ 13sec, Middle 2/3 Not available yet, Southern 1/3 Not available yet
FRIDAY - Northern 1/3 N 8-10, Seas N/A ?-? ft @ ?, Middle 2/3 Not available yet, Southern 1/3 Not available yet

**SEA OF CORTEZ FORECAST**

HIGH PRESSURE NORTH OF THE GULF OF TEHUANTEPEC SUSTAINS FRESH TO
NEAR GALE-FORCE NORTHERLY WINDS, ALONG WITH FREQUENT GUSTS TO
GALE FORCE AND SEAS TO 8-9 FT, ACROSS THE TEHUANTEPEC BASIN.
ELSEWHERE, A 1022 MB SUBTROPICAL RIDGE NEAR 30N130W EXTENDS A
RIDGE TO THE REVILLAGIGEDO ISLANDS. MODERATE NORTHERLY WINDS AND
MODERATE SEAS ARE PRESENT WEST OF GUADALUPE ISLANDS, WHILE LIGHT
TO GENTLE WINDS AND MODERATE SEAS PREVAIL IN THE REST OF THE
BAJA CALIFORNIA OFFSHORE WATERS. MODERATE NORTHERLY WINDS AND
SEAS OF 2-4 FT ARE NOTED OFF CABO CORRIENTES. IN THE REST OF THE
MEXICAN OFFSHORE WATERS, LIGHT TO GENTLE WINDS AND SLIGHT TO
MODERATE SEAS ARE EVIDENT.
FOR THE FORECAST, HIGH PRESSURE NORTH OF THE GULF OF TEHUANTEPEC
WILL SUPPORT FRESH TO NEAR GALE-FORCE NORTHERLY WINDS AND
MODERATE TO LOCALLY ROUGH SEAS OVER THE NEXT SEVERAL DAYS. WINDS
MAY PULSE TO GALE-FORCE AT NIGHT MON THROUGH WED. ELSEWHERE, FOR
MOST WATERS, A RELATIVELY WEAK PRESSURE GRADIENT WILL LEAD TO
MODERATE OR WEAKER WINDS AND SEAS INTO THE START OF NEXT WEEK.
LOOKING AHEAD, A COLD FRONT WILL APPROACH THE OFFSHORE WATERS OF
BAJA CALIFORNIA NORTE BY MIDWEEK POSSIBLY PRODUCING FRESH TO
STRONG SOUTHERLY WINDS AND ROUGH SEAS.
SHORT-TERM SEA OF CORTEZ NORTHERN HALF (north of 27N)
TODAY - WNW 7-9, Seas WSW 0.5-2.1 ft @ 11sec
TONITE - NNW 3-4, Seas WSW --? ft @ 12sec
SUNDAY - W 8-10, Seas WSW 0.8-1.9 ft @ 10sec
SUNDAY NIGHT - NNW 3-4, Seas WSW --? ft @ 12sec

SHORT-TERM SEA OF CORTEZ SOUTHERN HALF (south of 27N)
TODAY - NNW 7-9, Seas N/A ?-? ft @ ?
TONITE - NW 9-11, Seas N/A ?-? ft @ ?
SUNDAY - NNW 10-13, Seas N/A ?-? ft @ ?
SUNDAY NIGHT - NW 10-13, Seas N/A ?-? ft @ ?

LONG-TERM SEA OF CORTEZ
MONDAY - Northern Half NW 4-5, Seas WSW 0.8-1.9 ft @ 12sec, Southern Half NW 10-13, Seas N/A ?-? ft @ ?
TUESDAY - Northern Half Not available yet, Southern Half NNW 9-11, Seas N/A ?-? ft @ ?
WEDNESDAY - Northern Half Not available yet, Southern Half NNW 11-14, Seas N/A ?-? ft @ ?
THURSDAY - Northern Half NNW 10-13, Seas N/A ?-? ft @ ?, Southern Half NW 16-20, Seas N/A ?-? ft @ ?
FRIDAY - Northern Half NNW 15-19, Seas N/A ?-? ft @ ?, Southern Half NNW 17-21, Seas N/A ?-? ft @ ?

**SEA OF CORTEZ SOUTHERN CROSSING FORECAST**
SHORT-TERM SOUTHERN CROSSING (along 23N)
TODAY - Not available yet
TONITE - Not available yet
SUNDAY - Not available yet
SUNDAY NIGHT - Not available yet

LONG-TERM SOUTHERN CROSSING
MONDAY - Not available yet
TUESDAY - Not available yet
WEDNESDAY - Not available yet
THURSDAY - Not available yet
FRIDAY - Not available yet

**MAZATLAN TO BANDERAS BAY FORECAST**
SHORT-TERM MAZATLAN TO BAHIA BANDERAS
TODAY - Not available yet
TONITE - Not available yet
SUNDAY - Not available yet
SUNDAY NIGHT - Not available yet

LONG-TERM MAZATLAN TO BAHIA BANDERAS
MONDAY - Not available yet
TUESDAY - Not available yet
WEDNESDAY - Not available yet
THURSDAY - Not available yet
FRIDAY - Not available yet

**CABO CORRIENTES FORECAST**
SHORT-TERM CABO CORRIENTES TO MANZANILLO
TODAY - Not available yet
TONITE - Not available yet
SUNDAY - Not available yet
SUNDAY NIGHT - Not available yet

LONG-TERM CABO CORRIENTES TO MANZANILLO
MONDAY - Not available yet
TUESDAY - Not available yet
WEDNESDAY - Not available yet
THURSDAY - Not available yet
FRIDAY - Not available yet

**MEXICAN RIVIERA FORECAST**
SHORT-TERM MEXICAN RIVIERA MANZANILLO TO BAHIAS DE HUATULCO
TODAY - Not available yet
TONITE - Not available yet
SUNDAY - Not available yet
SUNDAY NIGHT - Not available yet

LONG-TERM MEXICAN RIVIERA MANZANILLO TO BAHIAS DE HUATULCO
MONDAY - Not available yet
TUESDAY - Not available yet
WEDNESDAY - Not available yet
THURSDAY - Not available yet
FRIDAY - Not available yet

**TEHUANTEPEC FORECAST**

.WITHIN 16N94W TO 16N96W TO 14N97W TO 13N96W TO 14N95W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO
30 KT WITH FREQUENT GUSTS TO GALE FORCE. SEAS 2.5 TO 3 M.
.12 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO
14N95W TO 15N94W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

GULF OF TEHUANTEPEC GALE WARNING: THE PRESSURE GRADIENT BETWEEN A
1024 MB HIGH PRESSURE SYSTEM OVER THE EASTERN UNITED STATES AND
LOWER PRESSURES IN THE DEEP TROPICS RESULT IN FRESH TO NEAR GALE-
FORCE NORTHERLY WINDS ACROSS THE GULF OF TEHUANTEPEC. THIS WAS
CONFIRMED BY A RECENT SCATTEROMETER SATELLITE PASS. FREQUENT
GUSTS TO GALE FORCE ARE OCCURRING THROUGH LATE THIS MORNING. SEAS
ARE PEAKING AROUND 8-9 FT (2.5-3 M). FRESH TO STRONG WINDS WILL
PERSIST ACROSS THE AREA THROUGH AT LEAST THE MIDDLE OF NEXT WEEK.
GALE CONDITIONS WILL BE POSSIBLE, MAINLY AT NIGHT, MON THROUGH
WED AS HIGH PRESSURE DEVELOPS OVER THE EASTERN SLOPES OF THE
SIERRA MADRE MOUNTAINS IN MEXICO. ROUGH SEAS ARE ALSO LIKELY TO
DEVELOP WITH THE STRONGEST WINDS.
HIGH PRESSURE NORTH OF THE GULF OF TEHUANTEPEC SUSTAINS FRESH TO
NEAR GALE-FORCE NORTHERLY WINDS, ALONG WITH FREQUENT GUSTS TO
GALE FORCE AND SEAS TO 8-9 FT, ACROSS THE TEHUANTEPEC BASIN.
ELSEWHERE, A 1022 MB SUBTROPICAL RIDGE NEAR 30N130W EXTENDS A
RIDGE TO THE REVILLAGIGEDO ISLANDS. MODERATE NORTHERLY WINDS AND
MODERATE SEAS ARE PRESENT WEST OF GUADALUPE ISLANDS, WHILE LIGHT
TO GENTLE WINDS AND MODERATE SEAS PREVAIL IN THE REST OF THE
BAJA CALIFORNIA OFFSHORE WATERS. MODERATE NORTHERLY WINDS AND
SEAS OF 2-4 FT ARE NOTED OFF CABO CORRIENTES. IN THE REST OF THE
MEXICAN OFFSHORE WATERS, LIGHT TO GENTLE WINDS AND SLIGHT TO
MODERATE SEAS ARE EVIDENT.
FOR THE FORECAST, HIGH PRESSURE NORTH OF THE GULF OF TEHUANTEPEC
WILL SUPPORT FRESH TO NEAR GALE-FORCE NORTHERLY WINDS AND
MODERATE TO LOCALLY ROUGH SEAS OVER THE NEXT SEVERAL DAYS. WINDS
MAY PULSE TO GALE-FORCE AT NIGHT MON THROUGH WED. ELSEWHERE, FOR
MOST WATERS, A RELATIVELY WEAK PRESSURE GRADIENT WILL LEAD TO
MODERATE OR WEAKER WINDS AND SEAS INTO THE START OF NEXT WEEK.
LOOKING AHEAD, A COLD FRONT WILL APPROACH THE OFFSHORE WATERS OF
BAJA CALIFORNIA NORTE BY MIDWEEK POSSIBLY PRODUCING FRESH TO
STRONG SOUTHERLY WINDS AND ROUGH SEAS.
SHORT-TERM TEHUANTEPEC
TODAY - Not available yet
TONITE - Not available yet
SUNDAY - Not available yet
SUNDAY NIGHT - Not available yet

LONG-TERM TEHUANTEPEC
MONDAY - Not available yet
TUESDAY - Not available yet
WEDNESDAY - Not available yet
THURSDAY - Not available yet
FRIDAY - Not available yet

**GAP WINDS FORECAST**

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N78W TO 09N98W. ITCZ FROM 09N98W TO BEYOND
06N140W. SCATTERED MODERATE FROM 07N TO 13N BETWEEN 113W AND 128W.

THE MONSOON TROUGH EXTENDS FROM 08N78W TO 09N98W. THE ITCZ STRETCHES
FROM 09N98W TO 10N117W TO BEYOND 06N140W. SCATTERED MODERATE
CONVECTION IS OBSERVED FROM 07N TO 13N AND BETWEEN 113W AND 128W.

A 1022 MB SUBTROPICAL RIDGE CENTERED NEAR 30N130W DOMINATES THE
REMAINDER OF THE TROPICAL EASTERN PACIFIC. A RECENT SCATTEROMETER
SATELLITE PASS SHOWED MODERATE TO LOCALLY FRESH NE-E WINDS OVER
MUCH OF THE BASIN WEST OF 120W AND NORTH OF THE ITCZ. SEAS IN
THESE WATERS ARE 5-8 FT. EAST OF 120W AND NORTH OF THE ITCZ AND
MONSOON TROUGH, MODERATE EASTERLY BREEZES AND SEAS OF 3-5 FT ARE
PREVALENT. SOUTH OF THE MONSOON TROUGH AND ITCZ AND WEST OF
100W, MODERATE TO LOCALLY FRESH SOUTHERLY WINDS AND SEAS OF 5-8
FT PREVAIL. ELSEWHERE, MODERATE OR WEAKER WINDS AND MODERATE SEAS
ARE EVIDENT.
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

A 1024 MB HIGH PRESSURE SYSTEM OVER THE EASTERN UNITED STATES
SUPPORTS FRESH TO LOCALLY STRONG EASTERLY GAP WINDS IN THE GULF
OF PAPAGAYO, EXTENDING DOWNSTREAM TO 90W. SEAS IN THESE WATERS
ARE 4-7 FT. FARTHER EAST, MODERATE TO LOCALLY FRESH NORTHERLY
WINDS AND SEAS OF 2-4 FT ARE OCCURRING IN THE GULF OF PANAMA.
ELSEWHERE, MODERATE OR LIGHTER WINDS AND MODERATE SEAS PREVAIL.

.WITHIN 11N86W TO 12N87W TO 11N89W TO 09N88W TO 10N86W TO
11N86W...INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT.
SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

A 1024 MB HIGH PRESSURE SYSTEM OVER THE EASTERN UNITED STATES
SUPPORTS FRESH TO LOCALLY STRONG EASTERLY GAP WINDS IN THE GULF
OF PAPAGAYO, EXTENDING DOWNSTREAM TO 90W. SEAS IN THESE WATERS
ARE 4-7 FT. FARTHER EAST, MODERATE TO LOCALLY FRESH NORTHERLY
WINDS AND SEAS OF 2-4 FT ARE OCCURRING IN THE GULF OF PANAMA.
ELSEWHERE, MODERATE OR LIGHTER WINDS AND MODERATE SEAS PREVAIL.
FOR THE FORECAST, BUILDING HIGH PRESSURE NORTH OF THE AREA WILL
SUPPORT FRESH TO STRONG NE TO E WINDS, MAINLY DURING LATE
NIGHT/EARLY MORNING HOURS ACROSS THE GULF OF PAPAGAYO OVER THE
NEXT SEVERAL DAYS. IN THE GULF OF PANAMA, MAINLY GENTLE TO
MODERATE N WINDS ARE EXPECTED THROUGH THE MIDDLE OF NEXT WEEK.
ELSEWHERE, A WEAK PRESSURE GRADIENT WILL CONTINUE TO ONLY FORCE
MODERATE OR WEAKER WINDS WITH SLIGHT TO MODERATE SEAS ACROSS THE
REMAINDER OF THE FORECAST WATERS INTO THE START OF NEXT WEEK.

A 1024 MB HIGH PRESSURE SYSTEM OVER THE EASTERN UNITED STATES
SUPPORTS FRESH TO LOCALLY STRONG EASTERLY GAP WINDS IN THE GULF
OF PAPAGAYO, EXTENDING DOWNSTREAM TO 90W. SEAS IN THESE WATERS
ARE 4-7 FT. FARTHER EAST, MODERATE TO LOCALLY FRESH NORTHERLY
WINDS AND SEAS OF 2-4 FT ARE OCCURRING IN THE GULF OF PANAMA.
ELSEWHERE, MODERATE OR LIGHTER WINDS AND MODERATE SEAS PREVAIL.
FOR THE FORECAST, BUILDING HIGH PRESSURE NORTH OF THE AREA WILL
SUPPORT FRESH TO STRONG NE TO E WINDS, MAINLY DURING LATE
NIGHT/EARLY MORNING HOURS ACROSS THE GULF OF PAPAGAYO OVER THE
NEXT SEVERAL DAYS. IN THE GULF OF PANAMA, MAINLY GENTLE TO
MODERATE N WINDS ARE EXPECTED THROUGH THE MIDDLE OF NEXT WEEK.
ELSEWHERE, A WEAK PRESSURE GRADIENT WILL CONTINUE TO ONLY FORCE
MODERATE OR WEAKER WINDS WITH SLIGHT TO MODERATE SEAS ACROSS THE
REMAINDER OF THE FORECAST WATERS INTO THE START OF NEXT WEEK.
SHORT-TERM GAP WINDS (Near 11N 86W)
TODAY - Not available yet
TONITE - Not available yet
SUNDAY - Not available yet
SUNDAY NIGHT - Not available yet

LONG-TERM GAP WINDS (Near 11N 86W)
MONDAY - Not available yet
TUESDAY - Not available yet
WEDNESDAY - Not available yet
THURSDAY - Not available yet
FRIDAY - Not available yet

** TSUNAMI INFO **
tsunami
See https://www.tsunami.gov/events/xml/PHEBAtom.xml PTCW - Tsunami warnings and info for Pacific Ocean (4.6 days old)
Updated 15 Dec 2025 23:17:06 GMT (4.6 days old)
ABOUT 48 MILES SOUTHEAST OF TINIAN

https://www.tsunami.gov/events/PHEB/2025/12/15/25349001/1/WEGM42/WEGM42.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 (1.5 days old)
Updated 19 Dec 2025 00:59:52 GMT (1.5 days old)
75 miles SW of Haines, Alaska

https://www.tsunami.gov/events/PAAQ/2025/12/19/t7hrtv/1/WEAK53/WEAK53.txt

WEAK53 PAAQ 190059
TIBAK1

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
359 PM AKST Thu Dec 18 2025

...THIS IS A TSUNAMI INFORMATION STATEMENT...

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 4.0
* Origin Time 1554 AKST Dec 18 2025
1654 PST Dec 18 2025
0054 UTC Dec 19 2025
* Coordinates 58.4 North 136.8 West
* Depth 7 miles
* Location 75 miles SW of Haines, Alaska
90 miles W of Juneau, 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.

$$