Mazatlan to Banderas Bay Forecast
October 28, 2026, 2:00 am (UTC: -05:00)
Subject: Mazatlan to Banderas Bay Forecast
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This forecast has not been reviewed. It was generated from an automatic model.
.WARNINGS.
...TROPICAL STORM WARNING...
.TROPICAL STORM VANCE NEAR 17.3N 108.4W 1003 MB AT 0300 UTC OCT
28 MOVING NW OR 315 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM E
SEMICIRCLE AND 0 NM W SEMICIRCLE. SEAS 4 M OR GREATER WITHIN 60
NM N SEMICIRCLE...45 NM SE QUADRANT AND 30 NM SW QUADRANT WITH
SEAS TO 4.0 M. ELSEWHERE WITHIN 18N106W TO 19N108W TO 17N110W TO
16N109W TO 15N107W TO 16N106W TO 18N106W WINDS 20 TO 33 KT. SEAS
2.5 TO 4.0 M. REMAINDER OF AREA WITHIN 20N106W TO 20N109W TO
19N111W TO 16N111W TO 15N107W TO 17N105W TO 20N106W
...INCLUDING NEAR CABO CORRIENTES...WINDS 20 KT OR LESS. SEAS
2.5 TO 3.5 M IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM VANCE NEAR 20.2N 108.5W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE
WINDS WITHIN 0 NM W SEMICIRCLE...70 NM NE QUADRANT AND 60 NM SE
QUADRANT. SEAS 4 M OR GREATER WITHIN 45 NM E SEMICIRCLE....AND 0
NM W SEMICIRCLE WITH SEAS TO 4 M. ELSEWHERE WITHIN 21N106W TO
22N107W TO 22N108W TO 21N110W TO 19N108W TO 20N107W TO 21N106W
...INCLUDING NEAR CABO CORRIENTES...WINDS 20 TO 30 KT.
SEAS 2.5 TO 3.5 M. REMAINDER OF AREA WITHIN 22N107W TO 23N109W TO
21N110W TO 19N109W TO 19N107W TO 19N106W TO 22N107W WINDS 20 KT
OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.48 HOUR FORECAST POST-TROPICAL VANCE NEAR 23.5N 107.7W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS
WITHIN 40 NM E SEMICIRCLE AND 0 NM W SEMICIRCLE. SEAS 4 M OR
GREATER WITHIN 30 NM E SEMICIRCLE...AND 0 NM W SEMICIRCLE WITH
SEAS TO 4 M. WITHIN 24N107W TO 25N108W TO 24N108W TO 23N108W TO
23N107W TO 24N107W...INCLUDING THE ENTRANCE TO THE GULF OF
CALIFORNIA...WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST POST-TROPICAL VANCE NEAR 23.5N 107.7W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS
WITHIN 40 NM E SEMICIRCLE AND 0 NM W SEMICIRCLE. SEAS 4 M OR
GREATER WITHIN 30 NM E SEMICIRCLE...AND 0 NM W SEMICIRCLE WITH
SEAS TO 4 M. WITHIN 24N107W TO 25N108W TO 24N108W TO 23N108W TO
23N107W TO 24N107W...INCLUDING THE ENTRANCE TO THE GULF OF
CALIFORNIA...WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
NORTHERLY WINDS IN THE GULF OF TEHUANTEPEC ARE FRESH TO NEAR GALE
FORCE WITH SEAS TO ROUGH. LIGHT TO GENTLE WINDS, AND SLIGHT TO
MODERATE SEAS, PREVAIL IN THE GULF OF CALIFORNIA. ELSEWHERE,
OUTSIDE OF VANCE AND THE GULF OF TEHUANTEPEC, WINDS ARE MAINLY
MODERATE OR WEAKER, WITH MODERATE SEAS, OVER THE OPEN WATERS OFF
MEXICO.
FOR THE FORECAST, TROPICAL STORM VANCE WILL MOVE TO 18.5N 108.7W
WED MORNING, 20.2N 108.5W WED EVENING, BECOME POST-TROPICAL AND
MOVE TO 21.7N 108.1W THU MORNING, 23.5N 107.7W THU EVENING,
WEAKEN TO A REMNANT LOW NEAR 25.3N 107.0W FRI MORNING, AND
DISSIPATE FRI EVENING. WINDS IN THE GULF OF TEHUANTEPEC WILL
PULSE FRESH TO NEAR GALE FORCE THROUGH THU NIGHT, THEN PULSE
MODERATE TO FRESH THEREAFTER. A DEVELOPING LOW PRESSURE AND
FRONTAL SYSTEM MAY IMPACT THE BAJA CALIFORNIA PENINSULA WATERS
LATE IN THE UPCOMING WEEKEND WITH THE POTENTIAL FOR INCREASING
WINDS AND BUILDING SEAS. MODERATE OR WEAKER WINDS AND MODERATE
SEAS WILL PREVAIL OTHERWISE.
SHORT-TERM MAZATLAN TO BAHIA BANDERAS
TODAY - S 14-18, Seas S 0-3 ft @ 8sec
TONITE - ESE 10-13, Seas S 1.4-5.4 ft @ 8sec
THURSDAY - S 17-21, Seas SSW 0-4.3 ft @ 7sec
THURSDAY NIGHT - S 11-14, Seas SSW 0-2.5 ft @ 5sec
LONG-TERM MAZATLAN TO BAHIA BANDERAS
FRIDAY - S 11-14, Seas SSW 0-2.5 ft @ 5sec
SATURDAY - ENE 4-5, Seas SSW 0-2.7 ft @ 16sec
SUNDAY - NNW 8-10, Seas SSW 1.2-3.7 ft @ 16sec
MONDAY - NNW 10-13, Seas SSW 1.4-3.6 ft @ 15sec
TUESDAY - NNW 10-13, Seas SSW 2.6-3.9 ft @ 14sec