Mazatlan to Banderas Bay Forecast
October 19, 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 19.7N 107.6W 984 MB AT 0300 UTC OCT 19
MOVING NW OR 315 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 70 KT
GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM OF CENTER
EXCEPT 70 NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM OF
CENTER EXCEPT 120 NM NW QUADRANT WITH SEAS TO 8.0 M. ELSEWHERE
WITHIN 21N106W TO 21N108W TO 20N109W TO 19N108W TO 18N107W TO
20N106W TO 21N106W WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0 M.
REMAINDER OF AREA WITHIN 24N109W TO 23N114W TO 21N115W TO 17N113W
TO 15N106W TO 18N104W TO 24N109W WINDS 20 KT OR LESS. SEAS 2.5
TO 3.0 M IN MIXED SWELL.
.12 HOUR FORECAST TROPICAL STORM TRUDY NEAR 19.8N 107.9W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.
.24 HOUR FORECAST TROPICAL STORM TRUDY NEAR 19.8N 108.5W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 30 NM S SEMICIRCLE...50 NM NE QUADRANT AND 40 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 60 NM OF CENTER EXCEPT 90 NM
NW QUADRANT WITH SEAS TO 5.5 M. ELSEWHERE WITHIN 21N108W TO
21N109W TO 21N110W TO 20N110W TO 19N108W TO 20N107W TO 21N108W
WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA WITHIN
23N108W TO 22N111W TO 20N111W TO 18N110W TO 18N108W TO 20N106W TO
23N108W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW TRUDY NEAR 20.4N
109.8W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. ELSEWHERE
WITHIN 21N108W TO 22N109W TO 22N111W TO 20N110W TO 20N109W TO
21N108W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0.
...GALE WARNING...
.WITHIN 16N94W TO 16N95W TO 15N95W TO 14N96W TO 13N95W TO 15N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 45
KT. SEAS 4.0 TO 5.0 M. ELSEWHERE WITHIN 14N94W TO 16N94W TO
16N95W TO 13N96W TO 10N97W TO 09N97W TO 14N94W N TO NE WINDS 20
TO 30 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA WITHIN 12N91W TO
16N95W TO 11N100W TO 07N99W TO 08N92W TO 12N91W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.24 HOUR FORECAST WITHIN 16N94W TO 16.5N95W TO 15.5N95W TO
15N95W TO 15N94.5W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC...N WINDS 30 TO 40 KT. SEAS 3.0 TO 4.0 M. ELSEWHERE
WITHIN 15N94W TO 16N95W TO 13N97W TO 12N96W TO 15N94W NE WINDS 20
TO 30 KT. SEAS 2.5 TO 3.5 M. REMAINDER OF AREA WITHIN 16N95W TO
10N102W TO 07N104W TO 03S97W TO 01S92W TO 06N90W TO 16N95W WINDS
20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N95W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35 KT.
SEAS 3.0 TO 3.5 M. ELSEWHERE WITHIN 16N94W TO 16N95W TO 15N96W
TO 13N97W TO 14N95W TO 16N94W NE WINDS 20 TO 30 KT. SEAS 2.5 TO
3.0 M. REMAINDER OF AREA WITHIN 16N94W TO 11N101W TO 08N100W TO
09N98W TO 11N95W TO 16N94W WINDS 20 KT OR LESS. SEAS 2.5 M IN NE
SWELL.
ELSEWHERE, A MODERATE PRESSURE GRADIENT ACROSS THE GULF OF
CALIFORNIA SUPPORTS MODERATE TO LOCALLY FRESH NW WINDS AND
MODERATE SEAS, ESPECIALLY IN THE CENTRAL PORTION OF THE BASIN.
ROUGH SEAS ASSOCIATED WITH TRUDY ARE FOUND IN THE SOUTHERN PART
OF THE GULF OF CALIFORNIA. IN THE REMAINDER OF THE BASIN,
MODERATE OR WEAKER WINDS AND MODERATE SEAS PREVAIL.
HURRICANE TRUDY IS CENTERED NEAR 19.7N 107.6W AT 19/0300 UTC,
MOVING NORTHWEST AT 6 KT. ESTIMATED MINIMUM CENTRAL PRESSURE IS
984 MB. MAXIMUM SUSTAINED WIND SPEED IS 70 KT WITH GUSTS TO 85
KT. PEAK SEAS ARE NEAR 27 FT. SCATTERED MODERATE TO ISOLATED
STRONG CONVECTION IS OBSERVED FROM 17N TO 22N AND BETWEEN 104W
AND 108W. A TURN TOWARD THE WEST-NORTHWEST OR WEST IS EXPECTED
TONIGHT INTO MONDAY. ON THE FORECAST TRACK, THE CENTER OF TRUDY
WILL MOVE FURTHER AWAY FROM THE COAST OF MAINLAND MEXICO DURING
THE OVERNIGHT HOURS, THEN MOVE SOUTH OF BAJA CALIFORNIA SUR ON
MONDAY AND TUESDAY. RAPID WEAKENING IS EXPECTED TO CONTINUE
TONIGHT INTO MONDAY, AND TRUDY COULD DEGENERATE TO A POST-
TROPICAL LOW BY TUESDAY NIGHT. SWELLS GENERATED BY TRUDY ARE
AFFECTING PORTIONS OF THE COAST OF SOUTHWESTERN AND WEST-CENTRAL
MEXICO DURING THE NEXT TWO TO THREE DAYS. THESE SWELLS WILL CAUSE
LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS. PLEASE CONSULT
PRODUCTS FROM YOUR LOCAL WEATHER OFFICE.
SHORT-TERM MAZATLAN TO BAHIA BANDERAS
TODAY - N 10-13, Seas SSW 0-4.9 ft @ 15sec
TONITE - NNE 2-3, Seas SSW 0-4.8 ft @ 14sec
TUESDAY - W 6-7, Seas SSW 0-4.4 ft @ 15sec
TUESDAY NIGHT - SSW 2-2, Seas SSW 0-4.5 ft @ 14sec
LONG-TERM MAZATLAN TO BAHIA BANDERAS
WEDNESDAY - WNW 10-13, Seas SSW 0-4.6 ft @ 18sec
THURSDAY - WNW 8-10, Seas SSW 0-4.3 ft @ 16sec
FRIDAY - NW 7-9, Seas SSW 0-3.8 ft @ 15sec
SATURDAY - SW 6-8, Seas SSW 0-2.8 ft @ 14sec
SUNDAY - N 14-18, Seas S 1-3.3 ft @ 14sec