Mazatlan to Banderas Bay Forecast
October 17, 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.
...HURRICANE WARNING...
.HURRICANE TRUDY NEAR 15.2N 102.5W 979 MB AT 0300 UTC OCT 17
MOVING N OR 350 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 80 KT GUSTS
100 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM S SEMICIRCLE...120
NM NE QUADRANT AND 100 NM NW QUADRANT. SEAS 4 M OR GREATER
WITHIN 150 NM NE AND SW QUADRANTS...180 NM NW QUADRANT AND 120 NM
SE QUADRANT WITH SEAS TO 9.5 M. ELSEWHERE WITHIN 17N100W TO
17N102W TO 17N104W TO 16N105W TO 14N104W TO 14N101W TO 17N100W
WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA WITHIN
17N100W TO 20N107W TO 16N110W TO 11N109W TO 09N103W TO 11N99W TO
17N100W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE TRUDY NEAR 17.7N 104.4W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS
WITHIN 110 NM NE QUADRANT...80 NM SE QUADRANT...70 NM SW
QUADRANT...AND 90 NM NW QUADRANT. SEAS 4 M OR GREATER 90 NM NE
QUADRANT...210 NM NW QUADRANT...AND 150 NM S SEMICIRCLE WITH SEAS
TO 11 M. ELSEWHERE WITHIN 18N103W TO 19N105W TO 19N106W TO
17N106W TO 16N104W TO 17N103W TO 18N103W WINDS 20 TO 30 KT. SEAS
3.0 TO 4.0 M. REMAINDER OF AREA WITHIN 17N100W TO 22N112W TO
10N119W TO 03N104W TO 17N100W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE TRUDY NEAR 20.0N 106.1W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS
WITHIN 90 NM NE QUADRANT...60 NM SE QUADRANT...40 NM SW
QUADRANT...AND 70 NM NW QUADRANT. SEAS 4 M OR GREATER 60 NM E
SEMICIRCLE 90 NM W SEMICIRCLE WITH SEAS TO 7.5 M. ELSEWHERE
WITHIN 21N106W TO 21N107W TO 20N107W TO 20N106W TO 21N105W TO
21N106W WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA
WITHIN 22N106W TO 22N108W TO 21N109W TO 19N108W TO 18N106W TO
19N105W TO 22N106W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN
MIXED SWELL.
...GALE WARNING...
.WITHIN 16N93W TO 16N95W TO 16N96W TO 14N95W TO 14N94W TO
16N93W...INCLUDING THE GULF OF TEHUANTEPEC...NW WINDS 20 TO 30
KT. SEAS 2.5 TO 3.0 M.
.12 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 14N95W TO
14N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS
30 TO 40 KT. SEAS 3.0 TO 4.0 M. ELSEWHERE WITHIN 16N94W TO 16N95W
TO 15N96W TO 11N96W TO 11N95W TO 12N93W TO 16N94W N WINDS 20 TO
30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N95W TO 13N95W TO
14N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS
30 TO 45 KT. SEAS 4.0 TO 5.0 M. ELSEWHERE WITHIN 14N93W TO 16N94W
TO 16N95W TO 12N97W TO 11N95W TO 12N94W TO 14N93W N WINDS 20 TO
30 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA WITHIN 13N92W TO
15N93W TO 16N96W TO 13N97W TO 09N97W TO 11N93W TO 13N92W WINDS 20
KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO
14N95W TO 14N94W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC...N WINDS 30 TO 40 KT. SEAS 3.5 TO 4.5 M. ELSEWHERE
WITHIN 15N93W TO 16N95W TO 16N96W TO 10N98W TO 09N97W TO 13N94W
TO 15N93W N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. REMAINDER
OF AREA WITHIN 11N91W TO 16N93W TO 15N96W TO 09N100W TO 06N99W
TO 07N93W TO 11N91W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N
SWELL.
FOR THE FORECAST, HURRICANE TRUDY WILL MOVE TO 16.3N 103.4W SAT
MORNING, 17.7N 104.4W SAT EVENING, 19.0N 105.3W SUN MORNING
APPROACHING CABO CORRIENTES, 20.0N 106.1W SUN EVENING, WEAKEN TO
A TROPICAL STORM NEAR 20.6N 106.8W MON MORNING, AND 20.9N 107.6W
MON EVENING. TRUDY WILL WEAKEN TO A REMNANT LOW OVER 21.3N
108.8W LATE TUE OVER THE ENTRANCE TO THE GULF OF CALIFORNIA. IN
ADDITION TO TRUDY, A GULF OF TEHUANTEPEC GAP WIND EVENT IS ONGOING.
THIS EARLY-SEASON TEHUANTEPER SHOULD REACH GALE-FORCE
NORTHERLIES SAT MORNING AND LIKELY PERSIST THROUGH TUE, BEFORE
GRADUALLY DIMINISHING ON WED. FINALLY 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. FORMATION CHANCE IS LOW THROUGH 48 HOURS, AND HIGH
THROUGH 7 DAYS.
OUTSIDE OF THE AREAS DESCRIBED IN THE SPECIAL FEATURES SECTION,
RECENT SATELLITE IMAGERY DEPICT THE REMNANT LOW OF SIMON JUST
SOUTHWEST OF BAJA CALIFORNIA SUR. FRESH TO STRONG WINDS AND
MODERATE SEAS ARE OCCURRING OFF CABO SAN LUCAS. ELSEWHERE,
MODERATE OR WEAKER WINDS AND SLIGHT TO MODERATE SEAS PREVAIL.
SHORT-TERM MAZATLAN TO BAHIA BANDERAS
DATA NOTE - Wind forecast supplied by Open-Meteo GFS fallback.
TODAY - NNE 12-15, Seas SSW 1.9-4 ft @ 17sec
TONITE - N 12-15, Seas SSW 2.2-4.2 ft @ 16sec
SUNDAY - N 12-15, Seas SSW 2.2-4.2 ft @ 16sec
SUNDAY NIGHT - ESE 4-5, Seas SSW 0-3.9 ft @ 15sec
LONG-TERM MAZATLAN TO BAHIA BANDERAS
MONDAY - NW 6-8, Seas SSW 0-3.4 ft @ 14sec
TUESDAY - NNW 6-8, Seas SSW 0-3.4 ft @ 14sec
WEDNESDAY - NNW 9-11, Seas SSW 1.1-3.4 ft @ 14sec
THURSDAY - NW 11-14, Seas SSW 1.6-3.6 ft @ 17sec
FRIDAY - NW 9-11, Seas SSW 1-3.1 ft @ 15sec