Mazatlan to Banderas Bay Forecast
September 20, 2026, 2:00 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...
.TROPICAL STORM ODALYS NEAR 11.1N 125.5W 1003 MB AT 1500 UTC SEP
20 MOVING WNW OR 285 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 40 KT
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM S
SEMICIRCLE...60 NM NE QUADRANT AND 40 NM NW QUADRANT. SEAS 4 M
OR GREATER WITHIN 0 NM OF CENTER EXCEPT 60 NM NE QUADRANT WITH
SEAS TO 4.0 M. ELSEWHERE WITHIN 15N122W TO 16N124W TO 15N128W TO
09N128W TO 09N125W TO 11N122W TO 15N122W WINDS 20 TO 33 KT. SEAS
2.5 TO 4.0 M.
.24 HOUR FORECAST TROPICAL STORM ODALYS NEAR 13.3N 128.1W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE
WINDS WITHIN 80 NM NE QUADRANT...50 NM SE QUADRANT...30 NM SW
QUADRANT...AND 60 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 120
NM E SEMICIRCLE...90 NM NW QUADRANT...AND 45 NM SW QUADRANT WITH
SEAS TO 7.0 M. ELSEWHERE WITHIN 14N125W TO 18N129W TO 17N130W TO
10N129W TO 10N125W TO 14N125W WINDS 20 TO 33 KT. SEAS 3.0 TO 4.0
M. REMAINDER AREA WITHIN 16N122W TO 20N127W TO 17N132W TO 13N132W
TO 09N126W TO 12N122W TO 16N122W WINDS 20 KT OR LESS. SEAS 2.5
TO 3.0 M IN MIXED SWELL.
.36 HOUR FORECAST HURRICANE ODALYS NEAR 14.1N 129.0W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.48 HOUR FORECAST HURRICANE ODALYS NEAR 14.5N 129.2W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS
WITHIN 80 NM NE QUADRANT...60 NM SE QUADRANT...50 NM SW
QUADRANT...AND 70 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 150
NM E SEMICIRCLE...180 NM NW QUADRANT...AND 120 NM SW QUADRANT
WITH SEAS TO 7 M. ELSEWHERE WITHIN 15N124W TO 19N129W TO 17N133W
TO 14N132W TO 10N130W TO 11N127W TO 15N124W WINDS 20 TO 33 KT.
SEAS 3.0 TO 4.0 M. REMAINDER AREA WITHIN 20N126W TO 22N130W TO
23N140W TO 17N140W TO 10N130W TO 14N123W TO 20N126W WINDS 20 KT
OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
...STORM WARNING...
.LOW PRES NEAR 14N106W 1007 MB. WITHIN 14N103W TO 16N104W TO
16N106W TO 12N107W TO 10N105W TO 11N103W TO 14N103W WINDS 20 TO
30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
15N104.5W 1005 MB. WITHIN 15N103W TO 16N104W TO 15N105W TO
14N105W TO 15N103W WINDS 30 TO 35 KT. SEAS 2.5 TO 4.0 M.
ELSEWHERE WITHIN 17N104W TO 16N105W TO 15N106W TO 13N105W TO
13N103W TO 14N102W TO 17N104W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5
M. REMAINDER AREA WITHIN 16N103W TO 17N106W TO 15N107W TO 13N106W
TO 12N104W TO 14N102W TO 16N103W WINDS 20 KT OR LESS. SEAS 2.5
TO 3.0 M IN MIXED SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
14.5N102.5W 1003 MB. WITHIN 15N102W TO 15N103W TO 14N103W TO
14N102W TO 15N102W WINDS 30 TO 50 KT. SEAS 4.0 TO 5.5 M.
ELSEWHERE WITHIN 15N101W TO 17N102W TO 15N105W TO 14N105W TO
12N102W TO 13N101W TO 15N101W WINDS 20 TO 30 KT. SEAS 3.0 TO 4.0
M. REMAINDER AREA WITHIN 17N100W TO 17N104W TO 15N105W TO 12N105W
TO 11N102W TO 14N99W TO 17N100W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN MIXED SWELL.
FRESH TO STRONG WINDS AND ROUGH SEAS, ASSOCIATED WITH EP99, ARE
OVER THE OUTER OFFSHORE WATERS OFF SW MEXICO. MODERATE WINDS AND
MODERATE SEAS ARE WEST OF THE BAJA CALIFORNIA PENINSULA. GENTLE
TO MODERATE WINDS AND SLIGHT SEAS ARE OVER THE GULF OF
CALIFORNIA. LIGHT TO GENTLE WINDS AND MODERATE SEAS PREVAIL
ELSEWHERE.
FOR THE FORECAST, ASIDE FROM CONDITIONS ASSOCIATED WITH INVEST
EP99, MODERATE TO LOCALLY FRESH NW WINDS WILL PREVAIL ACROSS
THE OFFSHORE BAJA CALIFORNIA WATERS THROUGH EARLY FRI MORNING
WHEN CONDITIONS IN BAJA CALIFORNIA SUR OFFSHORES WILL START TO
DETERIORATE DUE TO THE PROXIMITY OF INVEST EP99.
SHORT-TERM MAZATLAN TO BAHIA BANDERAS
TODAY - WSW 6-7, Seas SSW 0-1.5 ft @ 7sec
TONITE - W 2-3, Seas SSW 0-1.3 ft @ 7sec
MONDAY - WNW 6-8, Seas S 0.7-2.1 ft @ 9sec
MONDAY NIGHT - NNE 2-3, Seas S 0-2.3 ft @ 8sec
LONG-TERM MAZATLAN TO BAHIA BANDERAS
TUESDAY - W 4-5, Seas S 0-2.3 ft @ 8sec
WEDNESDAY - SW 5-6, Seas S 0.9-2.3 ft @ 12sec
THURSDAY - WNW 9-11, Seas S 0-3.5 ft @ 13sec
FRIDAY - W 7-9, Seas SSW 0-3.6 ft @ 14sec
SATURDAY - WSW 6-7, Seas SSW 0-6.5 ft @ 13sec