Mazatlan to Banderas Bay Forecast
October 26, 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 15.0N 104.7W 995 MB AT 0300 UTC OCT
26 MOVING NW OR 305 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 55 KT
GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM NE
QUADRANT...70 NM SE QUADRANT...60 NM SW QUADRANT...AND 130 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 180 NM NE AND SW QUADRANTS
...150 NM NW QUADRANT AND 120 NM SE QUADRANT WITH SEAS TO 7.5 M.
ELSEWHERE WITHIN 17N100W TO 19N104W TO 18N107W TO 14N108W TO
12N107W TO 13N100W TO 17N100W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0
M. REMAINDER OF AREA WITHIN 16N99W TO 21N106W TO 16N113W TO
10N110W TO 07N104W TO 11N99W TO 16N99W...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 15.7N 106.0W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 70 NM NE QUADRANT...50 NM SE QUADRANT...40 NM SW
QUADRANT...AND 80 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 120
NM N SEMICIRCLE...AND 90 NM S SEMICIRCLE WITH SEAS TO 6.0 M.
ELSEWHERE WITHIN 18N102W TO 20N105W TO 19N108W TO 14N108W TO
13N104W TO 14N102W TO 18N102W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0
M. REMAINDER OF AREA WITHIN 17N101W TO 20N106W TO 17N113W TO
12N110W TO 11N105W TO 14N101W TO 17N101W...INCLUDING NEAR CABO
CORRIENTES...WINDS 20 KT OR LESS. SEAS SEAS 2.5 TO 3.5 M IN MIXED
SWELL.
.48 HOUR FORECAST TROPICAL STORM VANCE NEAR 17.4N 107.3W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE
WINDS WITHIN 50 NM NW AND SE QUADRANTS...60 NM NE QUADRANT AND 30
NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN 75 NM N SEMICIRCLE...
AND 45 NM S SEMICIRCLE WITH SEAS TO 5.0 M. ELSEWHERE WITHIN
18N103W TO 20N106W TO 20N108W TO 16N108W TO 15N105W TO 16N104W TO
18N103W...INCLUDING NEAR CABO CORRIENTES...WINDS 20 TO 33 KT.
SEAS 2.5 TO 4.0 M. REMAINDER OF AREA WITHIN 18N102W TO 20N107W TO
19N110W TO 16N111W TO 14N108W TO 15N103W TO 18N102W WINDS 20 KT
OR LESS. SEAS 2.5 TO 3.5 M IN MIXED SWELL.
...GALE WARNING...
.WITHIN 16N95W TO 16N96W TO 15N96W TO 15N95W TO 16N95W...
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO 35 KT...
INCREASING TO 40 KT. SEAS 2.5 TO 3.5 M...BUILDING TO 4.0 M.
ELSEWHERE WITHIN 16N94W TO 16N96W TO 14N97W TO 14N95W TO 15N94W
TO 16N94W N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. REMAINDER
OF AREA WITHIN 14N95W TO 15N97W TO 15N99W TO 12N99W TO 12N97W
TO 13N95W TO 14N95W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N
TO NE SWELL.
.18 HOUR FORECAST WITHIN 16N94W TO 16N96W TO 14N97W TO 14N96W TO
13N95W TO 14N95W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC
...N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE WITHIN
16N94W TO 16N96W TO 13N99W TO 12N97W TO 12N96W TO 14N94W TO
16N94W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 15N95W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO
25 KT. SEAS LESS THAN 2.5 M.
ASIDE FROM THE GULF OF TEHUANTEPEC AND TROPICAL STORM VANCE,
WINDS ARE MODERATE OR WEAKER. SEAS ARE MODERATE AWAY FROM VANCE
AND THE GULF OF TEHUANTEPEC REGION, EXCEPT SLIGHT IN THE GULF OF
CALIFORNIA AWAY FROM THE ENTRANCE WHERE THEY ARE HIGHER DUE TO SE
SWELLS MOVING IN FROM VANCE.
FOR THE FORECAST, VANCE WILL MOVE TO 15.3N 105.3W MON MORNING,
15.7N 106.0W MON EVENING, 16.5N 106.8W TUE MORNING, 17.4N 107.3W
TUE EVENING, 18.5N 107.6W WED MORNING, AND 20.0N 107.7W WED
EVENING. VANCE WILL BECOME POST-TROPICAL AS IT MOVES TO 22.0N
107.8W LATE THU. ELSEWHERE, N-NE GALE FORCE GAP WINDS IN THE
GULF OF TEHUANTEPEC ARE EXPECTED TO PULSE TO 40 KT OVERNIGHT
TONIGHT, THEN DIMINISH TO JUST BELOW GALE FORCE BY EARLY MON
AFTERNOON AS THE GRADIENT SLACKENS SOME. RESULTANT SEAS WILL
SLOWLY SUBSIDE THROUGH TUE. THESE WINDS WILL THEN PULSE AT FRESH
TO STRONG SPEEDS THROUGH THU NIGHT. MODERATE TO FRESH WINDS WILL
PULSE NEARSHORE BAJA CALIFORNIA NORTE THROUGH TUE EVENING.
MODERATE OR WEAKER WINDS ALONG WITH MODERATE SEAS WILL PREVAIL
ELSEWHERE AWAY FROM VANCE AND THE GULF OF TEHUANTEPEC, EXCEPT
MAINLY SLIGHT SEAS IN THE GULF OF CALIFORNIA.
SHORT-TERM MAZATLAN TO BAHIA BANDERAS
TODAY - N 6-8, Seas SSE 0-2.4 ft @ 13sec
TONITE - NNW 2-2, Seas SSE 0-2.4 ft @ 10sec
TUESDAY - NW 3-4, Seas SSE 0-2.3 ft @ 9sec
TUESDAY NIGHT - NE 3-4, Seas S 0-2.7 ft @ 9sec
LONG-TERM MAZATLAN TO BAHIA BANDERAS
WEDNESDAY - ENE 4-5, Seas S 0-3 ft @ 10sec
THURSDAY - N 9-11, Seas S 0-3.3 ft @ 9sec
FRIDAY - SSE 8-10, Seas SSW 0-2.8 ft @ 18sec
SATURDAY - S 10-12, Seas SSW 0-2.9 ft @ 17sec
SUNDAY - SE 6-8, Seas SSW 0-3.5 ft @ 16sec