Mazatlan to Banderas Bay Forecast
October 18, 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 18.2N 105.7W 976 MB AT 0300 UTC OCT 18
MOVING NW OR 325 DEG AT 8 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 150 NM W SEMICIRCLE...90 NM NE QUADRANT AND 120
NM SE QUADRANT WITH SEAS TO 10.5 M. ELSEWHERE WITHIN 18N103W TO
20N106W TO 20N107W TO 18N108W TO 16N106W TO 16N104W TO 18N103W
WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA WITHIN
17N100W TO 22N112W TO 12N120W TO 06N110W TO 05N102W TO 17N100W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SEAS.
.24 HOUR FORECAST HURRICANE TRUDY NEAR 20.1N 107.1W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 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 60
NM E SEMICIRCLE AND 120 NM W SEMICIRCLE WITH SEAS TO 9.0 M.
ELSEWHERE WITHIN 22N106W TO 22N108W TO 21N109W TO 20N108W TO
19N108W TO 19N105W TO 22N106W WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0
M. REMAINDER OF AREA WITHIN 22N106W TO 24N109W TO 23N113W TO
20N113W TO 17N106W TO 18N104W TO 22N106W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.36 HOUR FORECAST TROPICAL STORM TRUDY NEAR 20.6N 107.7W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.
.48 HOUR FORECAST TROPICAL STORM TRUDY NEAR 20.9N 108.3W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE
WINDS WITHIN 40 NM NW AND SE QUADRANTS...50 NM NE QUADRANT AND 30
NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM E SEMICIRCLE
AND 120 NM W SEMICIRCLE WITH SEAS TO 6.0 M. ELSEWHERE WITHIN
23N107W TO 23N109W TO 23N111W TO 21N112W TO 19N109W TO 20N106W TO
23N107W WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA
WITHIN 21N107W TO 23N109W TO 21N110W TO 20N109W TO 20N108W TO
21N107W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
...GALE WARNING...
.WITHIN 15N94W TO 16N94W TO 16N95W TO 15N95W TO 13N95W TO 14N94W
TO 15N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 45
KT. SEAS 4.0 TO 5.5 M. ELSEWHERE WITHIN 16N94W TO 16N95W TO
10N97W TO 10N95W TO 13N93W TO 16N94W N WINDS 20 TO 30 KT. SEAS
3.0 TO 4.0 M. REMAINDER OF AREA WITHIN 14N92W TO 16N94W TO
15N98W TO 13N98W TO 10N97W TO 11N93W TO 14N92W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.24 HOUR FORECAST WITHIN 15N94W TO 16N95W TO 15N96W TO 13N96W TO
14N95W TO 15N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS
30 TO 45 KT. SEAS 4.0 TO 5.5 M. ELSEWHERE WITHIN 15N94W TO 16N95W
TO 09N98W TO 08N98W TO 13N94W TO 15N94W N TO NE WINDS 20 TO 30
KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA WITHIN 13N91W TO 16N95W
TO 14N99W TO 10N100W TO 06N98W TO 09N93W TO 13N91W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 16N95W TO 15N95W TO 15N94W TO
16N95W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 40 KT.
SEAS 3.5 TO 4.5 M. ELSEWHERE WITHIN 16N94W TO 16N95W TO 14N96W
TO 13N95W TO 14N94W TO 16N94W N TO NE WINDS 20 TO 30 KT. SEAS 3.0
TO 4.0 M. REMAINDER OF AREA WITHIN 11N93W TO 16N95W TO 09N102W
TO 03N98W TO 04N95W TO 07N96W TO 11N93W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.0 M IN N TO NE SWELL.
AWAY FROM HURRICANE TRUDY AND THE GULF OF TEHUANTEPEC, A MODERATE
PRESSURE GRADIENT BETWEEN A STRONG HIGH PRESSURE OVER THE HIGH
PLAINS OF THE WESTERN UNITED STATES AND LOWER PRESSURES IN NW
MEXICO SUPPORT MODERATE TO LOCALLY FRESH NORTHERLY WINDS IN THE
WATERS OF THE GULF OF CALIFORNIA NORTH OF 27N. SEAS IN THESE
WATERS ARE 2-4 FT. ELSEWHERE, MODERATE OR WEAKER WINDS AND
SLIGHT TO MODERATE SEAS PREVAIL.
SHORT-TERM MAZATLAN TO BAHIA BANDERAS
TODAY - N 10-13, Seas SSW 0-5.4 ft @ 16sec
TONITE - SSE 3-4, Seas SSW 0-6.1 ft @ 16sec
MONDAY - SSW 8-10, Seas SSW 0-5.9 ft @ 15sec
MONDAY NIGHT - NE 4-5, Seas SSW 0-4.7 ft @ 14sec
LONG-TERM MAZATLAN TO BAHIA BANDERAS
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 0-3.1 ft @ 15sec
SATURDAY - NNW 6-7, Seas SSW 0-3 ft @ 15sec