Mazatlan to Banderas Bay Forecast
September 21, 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...
.TROPICAL STORM POLO NEAR 15.1N 104.6W 1004 MB AT 0300 UTC SEP
21 MOVING ENE OR 075 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM E
SEMICIRCLE AND 0 NM W SEMICIRCLE. SEAS 4 M OR GREATER WITHIN 60
NM E SEMICIRCLE...45 NM SW QUADRANT AND 30 NM NW QUADRANT WITH
SEAS TO 5.0 M. WITHIN 15N102W TO 17N104W TO 17N105W TO 15N107W
TO 12N105W TO 12N103W TO 15N102W WINDS 20 TO 33 KT. SEAS 2.5 TO
4.5 M.
.24 HOUR FORECAST TROPICAL STORM POLO NEAR 15.4N 103.1W. MAXIMUM
SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE WINDS
WITHIN 60 NM NE QUADRANT...70 NM SE QUADRANT...50 NM SW
QUADRANT...AND 40 NM NW QUADRANT. SEAS 4 M OR GREATER
WITHIN 60 NM OF CENTER EXCEPT 30 NM NW QUADRANT WITH SEAS TO 7.0
M. WITHIN 16N101W TO 17N104W TO 15N106W TO 13N105W TO 12N103W TO
13N101W TO 16N101W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.5 M.
.36 HOUR FORECAST HURRICANE POLO NEAR 15.2N 102.4W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT.
.48 HOUR FORECAST HURRICANE POLO NEAR 15.5N 102.4W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS
WITHIN 100 NM NE QUADRANT...90 NM SE QUADRANT...80 NM SW
QUADRANT...AND 70 NM NW QUADRANT. SEAS 4 M OR GREATER
WITHIN 90 NM N SEMICIRCLE AND 120 NM S SEMICIRCLE WITH SEAS TO
7.0 M. WITHIN 16N98W TO 18N104W TO 16N106W TO 12N106W TO 09N103W
TO 10N99W TO 16N98W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.5 M.
...TROPICAL STORM WARNING...
.TROPICAL STORM ODALYS NEAR 13.1N 127.7W 1002 MB AT 0300 UTC SEP
21 MOVING NW OR 310 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 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 120 NM NE QUADRANT...75 NM SE QUADRANT...30 NM
SW QUADRANT...AND 90 NM NW QUADRANT WITH SEAS TO 5.5 M. WITHIN
14N122W TO 18N126W TO 15N132W TO 13N130W TO 09N130W TO 09N126W TO
14N122W WINDS 20 TO 33 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST TROPICAL STORM ODALYS NEAR 15.1N 130.0W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 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 150
NM E SEMICIRCLE...180 NM NW QUADRANT...AND 120 NM SW QUADRANT
WITH SEAS TO 7.0 M. WITHIN 20N127W TO 20N133W TO 15N134W TO
10N128W TO 10N125W TO 15N123W TO 20N127W WINDS 20 TO 33 KT. SEAS
2.5 TO 4.5 M.
.48 HOUR FORECAST TROPICAL STORM ODALYS NEAR 15.6N 129.5W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 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 180
NM OF CENTER...EXCEPT 210 NM WW QUADRANT WITH SEAS TO 8.0 M.
WITHIN 17N124W TO 21N127W TO 21N138W TO 16N139W TO 10N130W TO
10N126W TO 17N124W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.5 M.
TROPICAL STORM POLO IS NEAR 15.1N 104.6W AT 8 PM PDT, AND IS
MOVING EAST-NORTHEAST AT 4 KT. MAXIMUM SUSTAINED WINDS ARE 35 KT
WITH GUSTS TO 45 KT, AND THE MINIMUM CENTRAL PRESSURE IS 1004
MB. ASIDE FROM CONDITIONS ASSOCIATED WITH TROPICAL STORM POLO,
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, POLO WILL MOVE TO 15.4N 103.8W MON MORNING,
15.4N 103.1W MON EVENING, STRENGTHEN TO A HURRICANE NEAR 15.2N
102.4W TUE MORNING, 15.5N 102.4W TUE EVENING, 16.0N 103.0W WED
MORNING, AND 16.7N 103.7W WED EVENING. POLO WILL CHANGE LITTLE IN
INTENSITY AS IT MOVES NEAR 18.2N 106.0W LATE THU. 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 TS POLO.
SHORT-TERM MAZATLAN TO BAHIA BANDERAS
TODAY - WNW 8-10, Seas S 1-1.8 ft @ 8sec
TONITE - N 4-5, Seas S 0-2 ft @ 8sec
TUESDAY - ENE 9-11, Seas S 0-2 ft @ 8sec
TUESDAY NIGHT - SE 4-5, Seas S 0-1.9 ft @ 8sec
LONG-TERM MAZATLAN TO BAHIA BANDERAS
WEDNESDAY - SSW 6-7, Seas S 0-1.9 ft @ 8sec
THURSDAY - WNW 7-9, Seas SW 0.9-2.7 ft @ 14sec
FRIDAY - W 7-9, Seas SW 0-5 ft @ 13sec
SATURDAY - WSW 9-11, Seas SSW 0-8.5 ft @ 14sec
SUNDAY - S 14-18, Seas SSW 0-10.7 ft @ 14sec