Mazatlan to Banderas Bay Forecast
September 3, 2026, 8:00 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 KARINA NEAR 19.6N 135.7W 957 MB AT 0900 UTC SEP 03
MOVING WNW OR 285 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 105 KT
GUSTS 130 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM N
SEMICIRCLE AND 80 NM S SEMICIRCLE. SEAS 4 M OR GREATER WITHIN
270 NM NE AND SW QUADRANTS...330 NM NW QUADRANT AND 210 NM SE
QUADRANT WITH SEAS TO 13.5 M. ELSEWHERE WITHIN 23N131W TO 25N133W
TO 25N140W TO 20N140W TO 17N136W TO 18N134W TO 23N131W WINDS 20
TO 33 KT. SEAS 4.0 TO 7.0 M. REMAINDER OF AREA WITHIN 27N131W TO
28N140W TO 07N140W TO 07N128W TO 11N121W TO 14N126W TO 27N131W
WINDS 20 KT OR LESS. SEAS 2.5 TO 4.5 M IN MIXED WELL.
.24 HOUR FORECAST HURRICANE KARINA NEAR 20.4N 138.9W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS
WITHIN 80 NM S SEMICIRCLE...100 NM NE QUADRANT AND 110 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 240 NM E SEMICIRCLE WITH
SEAS TO 11.0 M OVER FORECAST WATERS. ELSEWHERE WITHIN 23N135W TO
26N140W TO 22N140W TO 22N138W TO 18N140W TO 19N136W TO 23N135W
WINDS 20 TO 33 KT. SEAS 3.0 TO 6.0 M. REMAINDER OF AREA WITHIN
22N131W TO 27N134W TO 29N140W TO 07N140W TO 09N129W TO 16N134W TO
22N131W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.0 M IN MIXED SEAS.
.48 HOUR FORECAST HURRICANE KARINA NEAR 21.4N 142.0W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS
WITHIN 110 NM N SEMICIRCLE AND 80 NM S SEMICIRCLE. SEAS 4 M OR
GREATER WITHIN 90 NM IN E SEMICIRCILE WITH SEAS TO 7.0 M OVER
FORECAST WATERS. ELSEWHERE WITHIN 24N139W TO 25N140W TO 20N140W
TO 21N139W TO 24N139W WINDS 20 TO 33 KT. SEAS 3.0 TO 6.0 M.
REMAINDER OF AREA WITHIN 24N133W TO 29N140W TO 14N140W TO 15N137W
TO 21N133W TO 24N133W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN
MIXED SWELL.
...HURRICANE WARNING...
.HURRICANE MARIE NEAR 18.9N 113.9W 981 MB AT 0900 UTC SEP 03
MOVING WNW OR 300 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 75 KT
GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 180 NM E
SEMICIRCLE...60 NM SW QUADRANT AND 90 NM NW QUADRANT. SEAS 4 M
OR GREATER WITHIN 270 NM NE QUADRANT...210 NM SE QUADRANT...150
NM SW QUADRANT...AND 240 NM NW QUADRANT WITH SEAS TO 11 M.
ELSEWHERE WITHIN 22N111W TO 22N116W TO 20N117W TO 17N116W TO 15N112W TO
18N109W TO 22N111W WINDS 20 TO 33 KT. SEAS 4.0 TO 7.0 M.
REMAINDER OF AREA WITHIN 23N107W TO 25N113W TO 22N118W TO 17N119W
TO 13N113W TO 16N108W TO 23N107W WINDS 20 KT OR LESS. SEAS 2.5
TO 4.5 M IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE MARIE NEAR 19.8N 116.6W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS
WITHIN 160 NM E SEMICIRCLE...90 NM SW QUADRANT AND 110 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 300 NM NE QUADRANT...270 NM
SE QUADRANT...210 NM SW QUADRANT...AND 270 NW QUADRANT WITH SEAS
TO 12.5 M. ELSEWHERE WITHIN 21N111W TO 23N114W TO 24N120W TO
23N122W TO 17N120W TO 17N113W TO 21N111W WINDS 20 TO 33 KT. SEAS
4.0 TO 7.0 M. REMAINDER OF AREA WITHIN 23N108W TO 30N117W TO
25N124W TO 19N124W TO 12N118W TO 15N110W TO 23N108W WINDS 20 KT
OR LESS. SEAS 2.5 TO 4.5 M IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE MARIE NEAR 21.0N 119.2W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS
WITHIN 150 NM E SEMICIRCLE...100 NM SW QUADRANT AND 130 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 300 NM E SEMICIRCLE AND NW
QUADRANT...AND 270 NM SW QUADRANT WITH SEAS TO 12.5 M. ELSEWHERE
WITHIN 22N114W TO 26N122W TO 24N125W TO 19N124W TO 16N119W TO
17N115W TO 22N114W WINDS 20 TO 33 KT. SEAS 4.0 TO 7.0 M.
REMAINDER OF AREA WITHIN 23N110W TO 30N120W TO 30N127W TO 25N130W
TO 11N122W TO 15N112W TO 23N110W WINDS 20 KT OR LESS. SEAS 2.5
TO 4.5 M IN MIXED SWELL.
AWAY FROM THE IMPACTS OF HURRICANE MARIE, THE PRESSURE GRADIENT
BETWEEN A RIDGE NORTH OF THE AREA AND THE HURRICANE SUSTAIN
MODERATE TO LOCALLY STRONG NORTHERLY WINDS AND MODERATE SEAS
ACROSS THE OFFSHORE WATERS OF BAJA CALIFORNIA, WITH THE STRONGEST
WINDS OCCURRING OFF BAJA CALIFORNIA NORTE. MODERATE TO
OCCASIONALLY FRESH SOUTHERLY WINDS AND SEAS OF 2-4 FT ARE NOTED
IN THE NORTHERN GULF OF CALIFORNIA. ELSEWEHRE, LIGHT TO GENTLE WINDS
AND SLIGHT TO MODERATE SEAS ARE EVIDENT IN THE OFFSHORE WATERS
OF MEXICO.
FOR THE FORECAST, HURRICANE MARIE IS NEAR 18.9N 113.9W AT 2 AM
PDT, AND IS MOVING WEST-NORTHWEST AT 9 KT. MAXIMUM SUSTAINED
WINDS ARE 75 KT WITH GUSTS TO 90 KT, AND THE MINIMUM CENTRAL
PRESSURE IS 981 MB. MARIE WILL MOVE TO 19.3N 115.1W THIS
AFTERNOON, 19.8N 116.6W FRI MORNING, 20.3N 118.0W FRI AFTERNOON,
21.0N 119.2W SAT MORNING, 21.7N 120.3W SAT AFTERNOON, AND 22.3N
121.4W SUN MORNING. MARIE WILL CHANGE LITTLE IN INTENSITY AS IT
MOVES TO THE 22.9N 124.2W EARLY MON. ELSEWHERE, A TIGHT PRESSURE
GRADIENT WILL RESULT IN FRESH TO LOCALLY STRONG S TO SE WINDS IN
THE N GULF OF CALIFORNIA THROUGH FRI NIGHT.
HURRICANE MARIE IS CENTERED NEAR 18.9N 113.9W AT 03/0900 UTC,
MOVING WEST-NORTHWEST AT 9 KT. ESTIMATED MINIMUM CENTRAL
PRESSURE IS 981 MB. MAXIMUM SUSTAINED WIND SPEED IS 75 KT WITH
GUSTS TO 90 KT. PEAK SEAS ARE AROUND 36 FT. NUMEROUS MODERATE TO
SCATTERED STRONG CONVECTION IS NOTED FROM 12N TO 23N BETWEEN
106W AND 117W. THE WNW MOTION SHOULD CONTINUE FOR THE NEXT FEW
DAYS. SOME STRENGTHENING IS FORECAST DURING THE NEXT 48 HOURS,
AND GRADUAL WEAKENING IS ANTICIPATED TO BEGIN BY THIS WEEKEND. SWELLS
GENERATED BY MARIE WILL AFFECT PORTIONS OF THE COAST OF
SOUTHWEST MEXICO AND THE BAJA CALIFORNIA PENINSULA FOR THE NEXT
FEW DAYS AND WILL LIKELY SPREAD NORTHWARD TO SOUTHERN CALIFORNIA
OVER THE WEEKEND. THESE SWELLS ARE LIKELY TO CAUSE LIFE-
THREATENING SURF AND RIP CURRENT CONDITIONS. PLEASE CONSULT
PRODUCTS FROM YOUR LOCAL WEATHER OFFICE.
PLEASE SEE THE SPECIAL FEATURES SECTION FOR MORE INFORMATION ON
HURRICANE MARIE CENTERED SOUTHWEST OF BAJA CALIFORNIA, MEXICO.
PLEASE SEE THE SPECIAL FEATURES SECTION FOR MORE INFORMATION
ABOUT HURRICANE KARINA CENTERED OVER A 1000 MILES EAST OF HAWAII,
AND HURRICANE MARIE LOCATED SOUTHWEST OF BAJA CALIFORNIA, MEXICO.
SHORT-TERM MAZATLAN TO BAHIA BANDERAS
TODAY - WNW 8-10, Seas SSW 0-6.2 ft @ 17sec
TONITE - NNW 5-6, Seas SSW 0-6.2 ft @ 17sec
FRIDAY - NW 10-12, Seas SSW 0-5.9 ft @ 16sec
FRIDAY NIGHT - NW 8-10, Seas SSW 0-5.7 ft @ 16sec
LONG-TERM MAZATLAN TO BAHIA BANDERAS
SATURDAY - NW 11-14, Seas SSW 0-5.3 ft @ 15sec
SUNDAY - NW 12-15, Seas SSW 0-5.2 ft @ 15sec
MONDAY - SW 10-12, Seas SSW 0-4.1 ft @ 14sec
TUESDAY - S 10-12, Seas SSW 0-4.1 ft @ 14sec
WEDNESDAY - S 10-12, Seas SSW 0-2.8 ft @ 16sec