Weather Summary for Mexico and Central America



February 21, 2018, 8:30 pm (UTC: -08:00)
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
.NONE.
SHORT-TERM ENSENADA - CEDROS
TODAY - NW 11-15, Seas NW 6-10 feet @ 12sec
TONITE - NNW 13-17, Seas WNW 6-10 feet @ 16sec
THURSDAY - NNW 12-16, Seas WNW 6-9 feet @ 15sec
THURSDAY NIGHT - NNW 12-16, Seas WNW 5-8 feet @ 14sec

SHORT-TERM CEDROS - SAN LAZAROS
TODAY - NW 11-15, Seas NW 6-9 feet @ 13sec
TONITE - NNW 12-17, Seas NW 6-9 feet @ 12sec
THURSDAY - NNW 16-22, Seas WNW 6-9 feet @ 15sec
THURSDAY NIGHT - NNW 15-20, Seas WNW 6-9 feet @ 15sec

SHORT-TERM SAN LAZAROS - CABO FALSO
TODAY - NNW 12-16, Seas WNW 5-8 feet @ 12sec
TONITE - NW 13-17, Seas SSW 5-8 feet @ 15sec
THURSDAY - NNW 14-19, Seas SSW 5-8 feet @ 15sec
THURSDAY NIGHT - NNW 4-5, Seas WSW 4-6 feet @ 15sec

LONG-TERM OUTSIDE OF THE BAJA
FRIDAY - Northern 1/3 NNW 17-24, Seas WNW 6-10 feet @ 13sec, Middle 2/3 NNW 15-21, Seas WNW 5-9 feet @ 14sec, Southern 1/3 NW 11-14, Seas WNW 4-7 feet @ 14sec
SATURDAY - Northern 1/3 NNW 17-23, Seas WNW 7-12 feet @ 17sec, Middle 2/3 NNW 17-23, Seas WNW 7-11 feet @ 13sec, Southern 1/3 NW 13-18, Seas WNW 4-7 feet @ 14sec
SUNDAY - Northern 1/3 NNW 15-20, Seas WNW 6-10 feet @ 15sec, Middle 2/3 N 14-19, Seas WNW 6-10 feet @ 16sec, Southern 1/3 N 7-10, Seas WNW 5-8 feet @ 16sec
MONDAY - Northern 1/3 N 11-16, Seas WNW 6-10 feet @ 14sec, Middle 2/3 NNW 9-13, Seas WNW 5-8 feet @ 14sec, Southern 1/3 W 4-6, Seas WSW 4-7 feet @ 15sec
TUESDAY - Northern 1/3 WSW 13-17, Seas WNW 5-8 feet @ 13sec, Middle 2/3 WNW 8-11, Seas W 4-7 feet @ 14sec, Southern 1/3 NW 10-13, Seas W 4-6 feet @ 14sec


**SEA OF CORTEZ FORECAST**

GENTLE TO MODERATE WINDS AND 1 TO 3 FT SEAS WILL PREVAIL IN THE
GULF OF CALIFORNIA THROUGH THU. A COLD FRONT WILL REACH NORTHERN
BAJA THU EVENING. FRESH WESTERLY WINDS ARE LIKELY TO DEVELOP
AHEAD OF THE FRONT OVER THE GULF OF CALIFORNIA N OF 29N THU NIGHT
AND FRI MORNING, THEN SUBSIDE FRI AS THE FRONT MOVES S AND
WEAKENS. HIGH PRESSURE BUILDING NW OF THE REGION WILL THEN BRING
FRESH TO STRONG NW WINDS TO THE CENTRAL AND SOUTHERN GULF OF
CALIFORNIA THIS WEEKEND, WITH SEAS BUILDING TO ABOUT 5-7 FT.
SHORT-TERM SEA OF CORTEZ NORTHERN HALF (north of 27N)
TODAY - ESE 6-9, Seas NW 0-1 feet @ 3sec
TONITE - WSW 9-13, Seas WSW 0-1 feet @ 1sec
THURSDAY - W 11-14, Seas WNW 1-3 feet @ 3sec
THURSDAY NIGHT - S 6-8, Seas NW 0-1 feet @ 3sec

SHORT-TERM SEA OF CORTEZ SOUTHERN HALF (south of 27N)
TODAY - NNW 11-15, Seas SSW 3-5 feet @ 16sec
TONITE - NNW 10-13, Seas SSW 3-5 feet @ 15sec
THURSDAY - NNW 13-18, Seas SSW 3-5 feet @ 15sec
THURSDAY NIGHT - NNW 13-17, Seas SSW 3-6 feet @ 14sec

LONG-TERM SEA OF CORTEZ
FRIDAY - Northern Half WSW 7-10, Seas SW 0-1 feet @ 2sec, Southern Half NNW 13-17, Seas SSW 3-6 feet @ 14sec
SATURDAY - Northern Half N 17-23, Seas NNW 3-5 feet @ 4sec, Southern Half NNW 16-22, Seas SSW 5-8 feet @ 14sec
SUNDAY - Northern Half NNW 15-21, Seas NNW 3-5 feet @ 4sec, Southern Half NNW 15-21, Seas NW 5-9 feet @ 6sec
MONDAY - Northern Half NW 9-13, Seas NW 2-4 feet @ 4sec, Southern Half NNW 12-17, Seas SSW 4-7 feet @ 13sec
TUESDAY - Northern Half WSW 10-14, Seas WSW 1-2 feet @ 3sec, Southern Half WNW 8-11, Seas S 3-5 feet @ 13sec


**SEA OF CORTEZ SOUTHERN CROSSING FORECAST**
SHORT-TERM SOUTHERN CROSSING (along 23N)
TODAY - NNW 11-15, Seas SSW 3-5 feet @ 16sec
TONITE - NNW 10-13, Seas SSW 3-5 feet @ 15sec
THURSDAY - NNW 13-18, Seas SSW 3-5 feet @ 15sec
THURSDAY NIGHT - NNW 13-17, Seas SSW 3-6 feet @ 14sec

LONG-TERM SOUTHERN CROSSING
FRIDAY - NNW 13-17, Seas SSW 3-6 feet @ 14sec
SATURDAY - NNW 16-22, Seas SSW 5-8 feet @ 14sec
SUNDAY - NNW 15-21, Seas NW 5-9 feet @ 6sec
MONDAY - NNW 12-17, Seas SSW 4-7 feet @ 13sec
TUESDAY - WNW 8-11, Seas S 3-5 feet @ 13sec


**MAZATLAN TO BANDERAS BAY FORECAST**
SHORT-TERM MAZATLAN TO BAHIA BANDERAS
TODAY - NW 14-19, Seas SSW 3-5 feet @ 16sec
TONITE - N 11-14, Seas SSW 3-5 feet @ 15sec
THURSDAY - NNW 12-17, Seas SSW 3-5 feet @ 15sec
THURSDAY NIGHT - NNW 11-15, Seas SSW 3-5 feet @ 14sec

LONG-TERM MAZATLAN TO BAHIA BANDERAS
FRIDAY - NW 13-17, Seas SSW 3-5 feet @ 13sec
SATURDAY - NW 14-19, Seas SSW 3-6 feet @ 14sec
SUNDAY - NNW 11-15, Seas SSW 3-6 feet @ 13sec
MONDAY - NW 12-16, Seas S 3-5 feet @ 15sec
TUESDAY - NW 11-15, Seas S 3-5 feet @ 13sec


**CABO CORRIENTES FORECAST**
SHORT-TERM CABO CORRIENTES TO MANZANILLO
TODAY - N 14-19, Seas SSW 4-7 feet @ 16sec
TONITE - NNE 13-18, Seas SSW 4-6 feet @ 15sec
THURSDAY - N 15-21, Seas SSW 4-7 feet @ 15sec
THURSDAY NIGHT - N 14-20, Seas SSW 4-7 feet @ 14sec

LONG-TERM CABO CORRIENTES TO MANZANILLO
FRIDAY - N 14-20, Seas SSW 4-7 feet @ 14sec
SATURDAY - N 13-18, Seas SSW 4-6 feet @ 15sec
SUNDAY - NNE 15-20, Seas WSW 5-8 feet @ 16sec
MONDAY - N 13-17, Seas WSW 4-7 feet @ 15sec
TUESDAY - NNE 10-13, Seas SSW 4-6 feet @ 14sec


**MEXICAN RIVIERA FORECAST**
SHORT-TERM MEXICAN RIVIERA MANZANILLO TO BAHIAS DE HUATULCO
TODAY - WSW 4-6, Seas SSW 3-5 feet @ 15sec
TONITE - N 3-4, Seas SSW 3-5 feet @ 15sec
THURSDAY - WNW 7-10, Seas SSW 3-5 feet @ 14sec
THURSDAY NIGHT - NW 9-12, Seas SSW 3-5 feet @ 13sec

LONG-TERM MEXICAN RIVIERA MANZANILLO TO BAHIAS DE HUATULCO
FRIDAY - W 10-13, Seas SSW 3-6 feet @ 14sec
SATURDAY - W 9-12, Seas SSW 3-6 feet @ 14sec
SUNDAY - W 9-13, Seas SSW 4-6 feet @ 13sec
MONDAY - SSE 4-6, Seas SW 4-6 feet @ 17sec
TUESDAY - WSW 7-9, Seas SW 3-6 feet @ 15sec


**TEHUANTEPEC FORECAST**

.36 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N BETWEEN 95W AND
95.5W N WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.


GULF OF TEHUANTEPEC: NORTHERLY WINDS WILL BRIEFLY INCREASE TO 20-
25 KT LATE THU NIGHT AND FRI, WITH SEAS PEAKING AT 7-8 FT DURING
THIS SHORT GAP WIND EVENT.
SHORT-TERM TEHUANTEPEC
TODAY - WSW 7-9, Seas SSW 3-5 feet @ 15sec
TONITE - WNW 6-8, Seas SSW 3-5 feet @ 15sec
THURSDAY - NNW 13-17, Seas SSW 4-7 feet @ 14sec
THURSDAY NIGHT - N 11-15, Seas SSW 3-6 feet @ 13sec

LONG-TERM TEHUANTEPEC
FRIDAY - NNW 16-21, Seas SSW 4-7 feet @ 13sec
SATURDAY - WNW 15-20, Seas SSW 4-6 feet @ 15sec
SUNDAY - SSW 5-7, Seas SSW 3-6 feet @ 13sec
MONDAY - SW 10-14, Seas SSW 3-6 feet @ 14sec
TUESDAY - NNW 16-22, Seas SSW 4-7 feet @ 13sec


**GAP WINDS FORECAST**

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH FROM 08N78W TO 08N86W TO 02N94W TO 02N101W. ITCZ FROM
02N101W TO 07N126W TO 08N140W. NO SIGNIFICANT CONVECTION.

A SURFACE TROUGH EXTENDS FROM 08N78W TO 08N86W TO 02N94W TO
02N101W. THE ITCZ CONTINUES FROM 02N101W TO 07N126W TO 08N140W.
NO SIGNIFICANT CONVECTION IS OBSERVED NEAR THE CONVERGENCE ZONE.

STRONG HIGH PRESSURE CENTERED N OF THE AREA SUPPORTS A RIDGE
THAT EXTENDS SE ACROSS THE FORECAST WATERS TO THE REVILLAGIGEDO
ISLANDS. THIS SYSTEM WILL BE REINFORCED BY STRONGER HIGH PRES
ARRIVING FRI BEHIND A WEAKENING COLD FRONT. THE GRADIENT BETWEEN
THE HIGH AND LOWER PRESSURE ASSOCIATED WITH THE ITCZ WILL RESULT
IN FRESH TO STRONG TRADE WINDS ACROSS MOST OF THE TROPICAL
WATERS W OF 115W AND N OF THE ITCZ THROUGH THE UPCOMING WEEKEND.
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

.WITHIN 45 NM OF LINE FROM 11N86W TO 10N90W...INCLUDING GULF
OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.


GULF OF PAPAGAYO: STRONG NE WINDS WILL CONTINUE TO PULSE THROUGH
AND DOWNSTREAM OF THE GULF OF PAPAGAYO TO NEAR 90W THROUGH MON
MORNING, WITH SEAS BUILDING TO 8-9 FT DURING THE OVERNIGHT AND
EARLY MORNING HOURS.
SHORT-TERM GAP WINDS (Near 11N 86W)
TODAY - ENE 17-24, Seas SW 4-7 feet @ 15sec
TONITE - ENE 23-31, Seas NE 5-9 feet @ 5sec
THURSDAY - ENE 26-35, Seas NE 6-10 feet @ 5sec
THURSDAY NIGHT - ENE 23-32, Seas ENE 6-9 feet @ 5sec

LONG-TERM GAP WINDS (Near 11N 86W)
FRIDAY - ENE 23-32, Seas ENE 6-9 feet @ 5sec
SATURDAY - ENE 22-29, Seas NE 5-8 feet @ 5sec
SUNDAY - ENE 18-25, Seas SSW 4-7 feet @ 13sec
MONDAY - ENE 20-27, Seas SSW 5-8 feet @ 14sec
TUESDAY - ENE 21-29, Seas WSW 5-8 feet @ 17sec