Mazatlan to Banderas Bay Forecast
October 17, 2026, 8:00 pm (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.
...HURRICANE WARNING...
.HURRICANE TRUDY NEAR 17.5N 105.0W 976 MB AT 2100 UTC OCT 17
MOVING NW OR 325 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 85 KT GUSTS
105 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM NW AND SE
QUADRANTS...120 NM NE QUADRANT AND 70 NM SW QUADRANT. SEAS 4 M OR
GREATER WITHIN 90 NM E SEMICIRCLE AND 150 NM W SEMICIRCLE WITH
SEAS TO 10.5 M. ELSEWHERE...WITHIN 17N101W TO 19N105W TO 18N106W
TO 17N107W TO 15N105W TO 15N102W TO 17N101W...INCLUDING NEAR CABO
CORRIENTES...WINDS 20 TO 33 KT. SEAS 3.5 TO 4.0 M. REMAINDER OF
AREA...WITHIN 16N100W TO 15N106W TO 21N107W TO 15N114W TO 08N110W
TO 10N100W TO 16N100W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN
MIXED SWELL.
.24 HOUR FORECAST HURRICANE TRUDY NEAR 19.8N 106.4W. MAXIMUM
SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM FORCE WINDS
WITHIN 100 NM NE QUADRANT...80 NM SE QUADRANT...60 NM SW
QUADRANT...AND 90 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 120
NM E SEMICIRCLE AND 150 NM E SEMICIRCLE WITH SEAS TO 10.0 M.
ELSEWHERE...WITHIN 21N106W TO 21N107W TO 20N108W TO 19N107W TO
18N106W TO 19N104W TO 21N106W...INCLUDING NEAR CABO
CORRIENTES...WINDS 20 TO 33 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF
AREA...WITHIN 19N107W TO 21N106W TO 23N113W TO 17N114W TO 14N105W
TO 18N103W TO 19N107W...INCLUDING WITHIN 60 NM OF SHORE...WINDS
20 KT OR LESS. SEAS 2.5 TO 3.5 M IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM TRUDY NEAR 21.0N 107.6W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 40 NM S SEMICIRCLE...60 NM NE QUADRANT AND 50 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM E SEMICIRCLE AND 120
NM W SEMICIRCLE WITH SEAS TO 8.0 M. ELSEWHERE...WITHIN 21N106W TO
22N108W TO 21N108W TO 20N108W TO 21N107W TO 20N106W TO
21N106W...INCLUDING NEAR CABO CORRIENTES...WINDS 20 TO 33 KT.
SEAS 3.5 TO 4.0 M. REMAINDER OF AREA...WITHIN 22N106W TO 24N108W
TO 23N112W TO 21N111W TO 18N108W TO 19N106W TO
22N106W...INCLUDING THE GULF OF CALIFORNIA AND WITHIN 60 NM OF
SHORE...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN MIXED SWELL.
...GALE WARNING...
.WITHIN 16N94W TO 16N95W TO 15N95W TO 14N95W TO 15N94W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 45 KT.
SEAS 3.5 TO 4.5 M. ELSEWHERE...WITHIN 14N93W TO 16N94W TO 16N95W
TO 14N97W TO 12N95W TO 13N94W TO 14N93W N WINDS 20 TO 30 KT.
SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 14N95W TO
13N95W TO 14N95W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC...N WINDS 30 TO 45 KT. SEAS 4.0 TO 5.5 M.
ELSEWHERE...WITHIN 15N93W TO 16N95W TO 13N97W TO 09N98W TO 09N96W
TO 12N93W TO 15N93W N TO NE WINDS 20 TO 30 KT. SEAS 3.5 TO 4.5
M. REMAINDER OF AREA...WITHIN 13N91W TO 16N95W TO 13N100W TO
10N100W TO 07N97W TO 08N92W TO 13N91W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.5 M IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 15N94W TO 16N94W TO 16N95W TO 15N96W TO
14N95W TO 15N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS
30 TO 40 KT. SEAS 3.5 TO 4.5 M. ELSEWHERE...WITHIN 14N94W TO
16N94W TO 16N95W TO 10N98W TO 10N97W TO 12N95W TO 14N94W N TO NE
WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA...WITHIN
13N92W TO 16N95W TO 13N99W TO 09N102W TO 04N99W TO 05N95W TO
13N92W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN N TO NE SWELL.
.48 HOUR FORECAST TROPICAL STORM TRUDY NEAR 21.0N 107.6W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 40 NM S SEMICIRCLE...60 NM NE QUADRANT AND 50 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM E SEMICIRCLE AND 120
NM W SEMICIRCLE WITH SEAS TO 8.0 M. ELSEWHERE...WITHIN 21N106W TO
22N108W TO 21N108W TO 20N108W TO 21N107W TO 20N106W TO
21N106W...INCLUDING NEAR CABO CORRIENTES...WINDS 20 TO 33 KT.
SEAS 3.5 TO 4.0 M. REMAINDER OF AREA...WITHIN 22N106W TO 24N108W
TO 23N112W TO 21N111W TO 18N108W TO 19N106W TO
22N106W...INCLUDING THE GULF OF CALIFORNIA AND WITHIN 60 NM OF
SHORE...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN MIXED SWELL.
AWAY FROM HURRICANE TRUDY AND THE GULF OF TEHUANTEPEC, MODERATE
TO LOCALLY FRESH WINDS ARE PRESENT IN THE GULF OF CALIFORNIA.
SEAS IN THESE WATERS ARE 2-5 FT. ELSEWHERE, MODERATE OR WEAKER
WINDS AND SLIGHT TO MODERATE SEAS PREVAIL.
FOR THE FORECAST, HURRICANE TRUDY IS NEAR 17.5N 105.0W AT 2 PM
PDT, AND IS MOVING NORTHWEST AT 9 KT. MAXIMUM SUSTAINED WINDS ARE
85 KT WITH GUSTS TO 105 KT, AND THE MINIMUM CENTRAL PRESSURE IS
976 MB. TRUDY WILL MOVE TO 18.6N 105.6W SUN MORNING, 19.8N 106.4W
SUN AFTERNOON, AND 20.7N 107.1W MON MORNING. TRUDY WILL WEAKEN
TO A TROPICAL STORM NEAR 21.0N 107.6W MON AFTERNOON, BE NEAR
21.2N 108.1W TUE MORNING, AND 21.5N 108.7W TUE AFTERNOON. TRUDY
WILL WEAKEN TO A REMNANT LOW JUST SOUTH OF BAJA CALIFORNIA SUR
WED AFTERNOON. STRONG HIGH PRESSURE BUILDING SOUTHWARD THROUGH
MEXICO IS FORCING POWERFUL GALE FORCE WINDS THROUGH THE GULF OF
TEHUNATEPEC, WHERE VERY ROUGH SEAS HAVE BUILT. WINDS TONIGHT AND
SUN WILL BE NEAR STORM-FORCE, WITH SEAS AS HIGH AS 20 FT. GALES
AND VERY ROUGH SEAS WILL PREVAIL SUN NIGHT THROUGH TUE NIGHT.
LOOKING AHEAD, AN AREA OF LOW PRESSURE IS FORECAST TO FORM
OFFSHORE OF SOUTHERN MEXICO DURING THE EARLY TO MIDDLE PART OF
NEXT WEEK. ENVIRONMENTAL CONDITIONS APPEAR CONDUCIVE FOR GRADUAL
DEVELOPMENT THEREAFTER, AND A TROPICAL DEPRESSION IS LIKELY TO
FORM DURING THE LATTER HALF OF NEXT WEEK WHILE IT MOVES GENERALLY
WESTWARD TO WEST-NORTHWESTWARD OVER THE EASTERN AND CENTRAL
PORTIONS OF THE EAST PACIFIC. THERE IS A HIGH CHANCE OF TROPICAL
FORMATION OF THIS LOW OVER THE NEXT 7 DAYS.
SHORT-TERM MAZATLAN TO BAHIA BANDERAS
TODAY - N 10-12, Seas SSW 0-5.2 ft @ 16sec
TONITE - N 10-13, Seas SSW 0-5.4 ft @ 16sec
SUNDAY - N 10-13, Seas SSW 0-5.4 ft @ 16sec
SUNDAY NIGHT - SSE 3-4, Seas SSW 0-6.1 ft @ 16sec
LONG-TERM MAZATLAN TO BAHIA BANDERAS
MONDAY - SSW 8-10, Seas SSW 0-5.9 ft @ 15sec
TUESDAY - N 5-6, Seas SSW 0-4.3 ft @ 14sec
WEDNESDAY - WNW 9-11, Seas SSW 0-4.5 ft @ 18sec
THURSDAY - NW 9-11, Seas SSW 0-4.4 ft @ 16sec
FRIDAY - NW 7-9, Seas SSW 0-3.2 ft @ 15sec