Mazatlan to Banderas Bay Forecast
September 10, 2026, 8:00 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.
...TROPICAL STORM WARNING...
.TROPICAL STORM NORBERT NEAR 16.5N 120.5W 1002 MB AT 2100 UTC SEP 10
MOVING W OR 270 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50
KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM S SEMICIRCLE...50 NM NE
QUADRANT AND 30 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 0 NM S
SEMICIRCLE...90 NM NE QUADRANT AND 30 NM NW QUADRANT WITH SEAS TO
4.5 M. ELSEWHERE WITHIN 180 NM N SEMICIRCLE AND 90 NM SE QUADRANT OF
CENTER WINDS 20 TO 33 KT. SEAS 3.0 TO 4 M. REMAINDER OF THE AREA
FROM 15N TO 20N BETWEEN 115W AND 122W WINDS 20 KT OR LESS. SEAS 2.5
TO 3.0 M IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM NORBERT NEAR 16.5N 124.9W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE
WINDS WITHIN 70 NM NE QUADRANT...30 NM SE QUADRANT...0 NM SW
QUADRANT...AND 50 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 120 NM
N AND 60 NM S SEMICIRCLES WITH SEAS TO 5.0 M. ELSEWHERE WITHIN 210
NM N AND 90 NM S SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. SEAS 3.0
TO 4 M. REMAINDER OF THE AREA FROM 15N TO 21N BETWEEN 121W AND 127W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM NORBERT NEAR 17.0N 129.0W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE
WINDS WITHIN 70 NM NE QUADRANT...40 NM SE QUADRANT...30 NM SW
QUADRANT...AND 60 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 120 NM
N AND 60 NM S SEMICIRCLES WITH SEAS TO 6.0 M. ELSEWHERE WITHIN 240
NM N AND 90 NM S SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. SEAS 3.0
TO 4 M. REMAINDER OF THE AREA FROM 15N TO 23N BETWEEN 125W AND
133W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
FOR THE FORECAST, NORBERT WILL MOVE TO 16.5N 122.5W FRI MORNING,
16.5N 124.9W FRI AFTERNOON, 16.6N 127.1W SAT MORNING, 17.0N
129.0W SAT AFTERNOON, 17.6N 130.7W SUN MORNING, AND STRENGTHEN TO
A HURRICANE NEAR 18.0N 132.4W SUN AFTERNOON. NORBERT WILL WEAKEN
TO A TROPICAL STORM NEAR 18.4N 136.1W MON AFTERNOON. AS NORBERT
CONTINUES TO MOVE WESTWARD, A STRONGER RIDGE WILL BUILD ACROSS
THE OFFSHORE WATERS OF BAJA CALIFORNIA, BRINGING MODERATE TO
LOCALLY FRESH NW TO N WINDS BY SUN INTO EARLY NEXT WEEK. WINDS
WILL ALSO INCREASE ACROSS THE NORTHERN GULF OF CALIFORNIA FRI AND
FRI NIGHT, THEN AGAIN MON AND MON NIGHT DUE TO THE PRESSURE
GRADIENT BETWEEN THE RIDGE AND THE MEANDERING TROUGH THAT IS IN
PLACE IN THAT AREA. OTHERWISE, FRESH TO STRONG N TO NE GAP WINDS
WILL CONTINUE TO PULSE ACROSS THE GULF OF TEHUANTEPEC THROUGH
EARLY FRI.
MARINE CONDITIONS ARE IMPROVING IN THE REVILLAGIGEDO ISLANDS AS
T.S. NORBERT CONTINUES TO MOVE WESTWARD AND AWAY FROM THE ISLANDS.
MODERATE TO FRESH EASTERLY WINDS AND SEAS UP TO 6 FT ARE STILL
NOTED IN THE VICINITY OF CLARION ISLAND. FRESH TO STRONG N GAP
WINDS CONTINUE ACROSS THE TEHUANTEPEC REGION AND DOWNWIND TO NEAR
14N. MODERATE TO LOCALLY ROUGH SEAS ARE WITH THESE WINDS. LIGHT
TO GENTLE WINDS DOMINATE THE OFFSHORE WATERS OF BAJA CALIFORNIA
UNDER THE INFLUENCE OF A WEAK RIDGE, ANCHORED BY A 1017 MB HIGH
PRESSURE CENTERED NEAR 30N127W. LIGHT TO GENTLE WINDS AND MODERATE
SEAS ARE PRESENT ELSEWHERE ACROSS THE REMAINING MEXICAN OFFSHORE
WATERS.
ASIDE FROM T.S. NORBERT AND THE TROPICAL WAVES PREVIOUSLY
MENTIONED, A SURFACE TROUGH IS ANALYZED FROM 22N131W TO 13N132W.
RECENT SCATTEROMETER DATA INDICATE THE WIND SHIFT ASSOCIATED WITH
THE TROUGH, WITH MODERATE TO FRESH WINDS NEAR THE NORTHERN END
OF IT. A RIDGE DOMINATES THE WATERS N OF 20N AND W OF 110W.
GENTLE TO MODERATE WINDS AND MODERATE SEAS ARE NOTED UNDER THE
INFLUENCE OF THE RIDGE, WITH THE EXCEPTION OF LIGHT TO GENTLE
WINDS N OF 27N AND W OF 130W AS WELL AS N OF 20N E OF 118W TO THE
COAST OF BAJA CALIFORNIA. MODERATE OR WEAKER WINDS ALONG WITH
SEAS OF 5 TO 7 FT ARE OVER THE REMAINDER OF THE EASTERN PACIFIC
FORECAST REGION.
SHORT-TERM MAZATLAN TO BAHIA BANDERAS
TODAY - NW 6-7, Seas SW 0-3.7 ft @ 16sec
TONITE - NNW 6-7, Seas SW 0-3.5 ft @ 16sec
FRIDAY - WNW 7-9, Seas SSW 0-3.2 ft @ 15sec
FRIDAY NIGHT - W 4-5, Seas SW 0-2.9 ft @ 14sec
LONG-TERM MAZATLAN TO BAHIA BANDERAS
SATURDAY - WNW 8-10, Seas SW 1.1-2.8 ft @ 14sec
SUNDAY - SW 7-9, Seas SW 0.9-2.7 ft @ 13sec
MONDAY - ENE 10-13, Seas SW 0-2.9 ft @ 12sec
TUESDAY - W 5-6, Seas SSW 0-3.5 ft @ 17sec
WEDNESDAY - ENE 11-14, Seas SSW 1-3.3 ft @ 16sec