Mazatlan to Banderas Bay Forecast
September 2, 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 18.5N 131.7W 940 MB AT 0900 UTC SEP 02
MOVING W OR 280 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 125 KT
GUSTS 150 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM NE AND SW
QUADRANTS...110 NM NW QUADRANT AND 80 NM SE QUADRANT. SEAS 4 M
OR GREATER WITHIN 240 NM OF CENTER EXCEPT 270 NM NW QUADRANT
WITH SEAS TO 12.0 M. WITHIN 21N127W TO 26N131W TO 25N134W TO
22N137W TO 15N135W TO 16N129W TO 21N127W WINDS 20 TO 33 KT. SEAS
4.0 TO 5.5 M. WITHIN 19N125W TO 27N129W TO 25N140W TO 14N140W TO
14N133W TO 09N127W TO 19N125W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE KARINA NEAR 19.5N 135.0W. MAXIMUM
SUSTAINED WINDS 125 KT GUSTS 150 KT. LITTLE CHANGE. TROPICAL
STORM FORCE WINDS AND SEAS 4 M OR GREATER. WITHIN 25N132W TO
26N140W TO 19N140W TO 17N137W TO 18N132W TO 22N130W TO 25N132W
WINDS 20 TO 33 KT. SEAS 4.0 TO 5.5 M. WITHIN 26N128W TO 28N140W
TO 17N134W TO 18N140W TO 09N140W TO 10N124W TO 26N128W WINDS 20
KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE KARINA NEAR 20.4N 139.0W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS
WITHIN 110 NM N SEMICIRCLE AND 80 NM S SEMICIRCLE. SEAS 4 M OR
GREATER WITHIN 210 NM NE QUADRANT...150 NM SE QUADRANT...240 NM
SW QUADRANT AND 330 NM NW QUADRANT WITH SEAS TO 9.0 M. WITHIN
24N131W TO 29N140W TO 20N136W TO 19N140W TO 12N140W TO 14N133W TO
24N131W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.5 M.
...HURRICANE WARNING...
.TROPICAL STORM MARIE NEAR 16.7N 111.0W 994 MB AT 0900 UTC SEP
02 MOVING NW OR 310 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 55 KT
GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 140 NM NE
QUADRANT...160 NM SE QUADRANT...30 NM SW QUADRANT...AND 70 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 240 NM NE QUADRANT...210 NM
SE QUADRANT...120 NM SW QUADRANT...AND 180 NM NW QUADRANT WITH
SEAS TO 9.0 M. WITHIN 17N104W TO 22N108W TO 18N116W TO 11N112W
TO 10N109W TO 13N104W TO 17N104W...INCLUDING NEAR CABO
CORRIENTES...WINDS 20 TO 33 KT. SEAS 2.5 TO 4.5 M.
.12 HOUR FORECAST HURRICANE MARIE NEAR 17.5N 112.1W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT.
.24 HOUR FORECAST HURRICANE MARIE NEAR 18.4N 113.6W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS
WITHIN 150 NM NE QUADRANT...140 NM SE QUADRANT...70 NM SW
QUADRANT...AND 110 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN
270 NM E SEMICIRCLE AND 210 NM W SEMICIRCLE WITH SEAS TO 11.0 M.
WITHIN 19N104W TO 24N107W TO 23N118W TO 17N120W TO 12N117W TO
12N108W TO 19N104W...INCLUDING NEAR CABO CORRIENTES AND THE GULF
OF CALIFORNIA AND WITHIN 60 NM OF SHORE...WINDS 20 TO 33 KT.
SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST HURRICANE MARIE NEAR 19.7N 116.6W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS
WITHIN 140 NM E SEMICIRCLE...90 NM SW QUADRANT AND 120 NM NW
QUADRANT. SEAS 4 M OR GREATER 300 NM NE QUADRANT...330 NM SE
QUADRANT...270 SW QUADRANT AND 300 NM NW QUADRANT WITH SEAS TO
12.0 M. WITHIN 23N107W TO 30N117W TO 25N125W TO 18N126W TO
11N122W TO 13N109W TO 23N107W...INCLUDING NEAR CABO CORRIENTES
AND THE GULF OF CALIFORNIA AND SEBASTIAN VIZCAINO BAY AND WITHIN
60 NM OF SHORE...WINDS 20 TO 33 KT. SEAS 4.0 TO 5.5 M.
.24 HOUR FORECAST HURRICANE MARIE NEAR 18.4N 113.6W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS
WITHIN 150 NM NE QUADRANT...140 NM SE QUADRANT...70 NM SW
QUADRANT...AND 110 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN
270 NM E SEMICIRCLE AND 210 NM W SEMICIRCLE WITH SEAS TO 11.0 M.
WITHIN 19N104W TO 24N107W TO 23N118W TO 17N120W TO 12N117W TO
12N108W TO 19N104W...INCLUDING NEAR CABO CORRIENTES AND THE GULF
OF CALIFORNIA AND WITHIN 60 NM OF SHORE...WINDS 20 TO 33 KT.
SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST HURRICANE MARIE NEAR 19.7N 116.6W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS
WITHIN 140 NM E SEMICIRCLE...90 NM SW QUADRANT AND 120 NM NW
QUADRANT. SEAS 4 M OR GREATER 300 NM NE QUADRANT...330 NM SE
QUADRANT...270 SW QUADRANT AND 300 NM NW QUADRANT WITH SEAS TO
12.0 M. WITHIN 23N107W TO 30N117W TO 25N125W TO 18N126W TO
11N122W TO 13N109W TO 23N107W...INCLUDING NEAR CABO CORRIENTES
AND THE GULF OF CALIFORNIA AND SEBASTIAN VIZCAINO BAY AND WITHIN
60 NM OF SHORE...WINDS 20 TO 33 KT. SEAS 4.0 TO 5.5 M.
TROPICAL STORM MARIE IS NEAR 16.7N 111.0W AT 2 AM
PDT, AND IS MOVING NORTHWEST AT 9 KT. MAXIMUM SUSTAINED WINDS ARE
55 KT WITH GUSTS TO 65 KT, AND THE MINIMUM CENTRAL PRESSURE IS
994 MB. ASIDE FROM THE IMPACTS OF TROPICAL STORM MARIE, A WEAK
PRESSURE GRADIENT ACROSS THE OFFSHORE WATERS OF BAJA CALIFORNIA
SUSTAINS MODERATE OR WEAKER WINDS AND MODERATE SEAS. A SLIGHTLY
TIGHTER PRESSURE GRADIENT IN THE NORTHERN GULF OF CALIFORNIA IS
ALLOWING FOR LOCALLY FRESH SOUTHERLY WINDS AND SLIGHT SEAS.
ELSEWHERE, LIGHT TO GENTLE WINDS AND SLIGHT TO MODERATE SEAS
PREVAIL.
FOR THE FORECAST, MARIE WILL STRENGTHEN TO A HURRICANE NEAR
17.5N 112.1W THIS AFTERNOON, MOVE TO 18.4N 113.6W THU MORNING,
19.1N 115.1W THU AFTERNOON, 19.7N 116.6W FRI MORNING, 20.2N
118.0W FRI AFTERNOON, AND 20.8N 119.3W SAT MORNING. MARIE WILL
CHANGE LITTLE IN INTENSITY AS IT MOVES NEAR 22.1N 121.8W EARLY
SUN. ELSEWHERE, A TIGHTER PRESSURE GRADIENT WILL RESULT IN FRESH
TO LOCALLY STRONG SOUTHERLY WINDS AND MODERATE SEAS IN THE
NORTHERN GULF OF CALIFORNIA THROUGH FRI NIGHT.
TROPICAL STORM MARIE IS CENTERED NEAR 16.7N 111.0W AT 02/0900
UTC, MOVING NORTHWEST AT 9 KT. ESTIMATED MINIMUM CENTRAL
PRESSURE IS 994 MB. MAXIMUM SUSTAINED WIND SPEED IS 55 KT WITH
GUSTS TO 65 KT. PEAK SEAS ARE AROUND 28 FT. NUMEROUS MODERATE TO
SCATTERED STRONG CONVECTION IS NOTED FROM 09N TO 21N BETWEEN
105W AND 116W. SOME STRENGTHENING IS FORECAST DURING THE NEXT 48
HOURS, AND MARIE IS LIKELY TO BECOME A HURRICANE LATER TODAY.
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.
SHORT-TERM MAZATLAN TO BAHIA BANDERAS
DATA NOTE - Using cached forecast from 6 hours ago.
TODAY - ENE 10-13, Seas SSW 1.8-7.3 ft @ 12sec
TONITE - NE 5-6, Seas SSW 0-7.1 ft @ 11sec
THURSDAY - W 9-11, Seas SSW 0-6.5 ft @ 17sec
THURSDAY NIGHT - W 6-8, Seas SSW 0-6.5 ft @ 17sec
LONG-TERM MAZATLAN TO BAHIA BANDERAS
FRIDAY - NNE 11-14, Seas SSW 0-6.4 ft @ 17sec
SATURDAY - NNW 11-14, Seas SSW 0-5.5 ft @ 15sec
SUNDAY - NW 12-15, Seas SSW 0-5.3 ft @ 15sec
MONDAY - ENE 10-13, Seas SSW 2.2-5.3 ft @ 14sec
TUESDAY - SSW 7-9, Seas SSW 0-3.3 ft @ 13sec