Mazatlan to Banderas Bay Forecast
August 1, 2026, 3:01 pm (UTC: -04:00)
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 GENEVIEVE NEAR 23.0N 133.7W 1003 MB AT 1500 UTC
AUG 01 MOVING WNW OR 285 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS
40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM N
SEMICIRCLE AND 40 NM S SEMICIRCLE. SEAS 4 M OR GREATER WITHIN
120 NM N SEMICIRCLE...75 NM SE QUADRANT AND 90 NM SW QUADRANT
WITH SEAS TO 6.5 M. ELSEWHERE WITHIN 26N131W TO 27N132W TO
27N136W TO 26N138W TO 22N135W TO 23N131W TO 26N131W WINDS 20 TO
33 KT. SEAS 2.5 TO 4.0 M.
.24 HOUR FORECAST TROPICAL STORM GENEVIEVE NEAR 24.5N 138.3W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE
WINDS WITHIN 0 NM S SEMICIRCLE...100 NM NE QUADRANT AND 80 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM NE AND 60 NM SW
SEMICIRCLES WITH SEAS TO 5.0 M. ELSEWHERE WITHIN 27N136W TO
29N138W TO 30N140W TO 24N140W TO 24N136W TO 27N136W WINDS 20 TO
33 KT. SEAS 2.5 TO 4.0 M.
.48 HOUR FORECAST POST-TROPICAL GENEVIEVE NEAR 26.4N 143.0W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS
WITHIN 0 NM OF CENTER EXCEPT 30 NM NE QUADRANT. ELSEWHERE WITHIN
29N139W TO 30N139W TO 30N140W TO 25N140W TO 26N139W TO 27N139W TO
29N139W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M.
.18 HOUR FORECAST WITHIN 31N113W TO 32N114W TO 31N114W TO
29N113W TO 29N112W TO 30N113W TO 31N113W...INCLUDING THE GULF OF
CALIFORNIA... SE WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
MODERATE TO LOCALLY FRESH WINDS ARE OVER THE GULF OF
TEHUANTEPEC. ELSEWHERE, GENTLE TO MODERATE WINDS PREVAIL.
MODERATE SEAS DOMINATE THE OPEN WATERS OFF MEXICO, WITH SLIGHT
SEAS IN THE GULF OF CALIFORNIA.
FOR THE FORECAST, THE PRESSURE GRADIENT BETWEEN HIGH PRESSURE
WEST OF THE AREA AND LOWERING PRESSURE OVER THE COLORADO RIVER
VALLEY WILL SUPPORT FRESH TO STRONG SW WINDS AND BUILDING SEAS
OVER THE NORTHERN GULF OF CALIFORNIA SAT NIGHT INTO SUN MORNING.
ELSEWHERE, A MODERATE PRESSURE GRADIENT WILL SUPPORT MOSTLY
GENTLE TO MODERATE NW WINDS ACROSS THE OFFSHORE WATERS OF MEXICO.
LONG- PERIOD NW SWELL WILL MOVE INTO THE WATERS OFF BAJA
CALIFORNIA NORTE SUN NIGHT THROUGH THEN START TO SUBSIDE TUE.
FOR THE FORECAST, THE CENTER OF TROPICAL STORM GENEVIEVE WILL
MOVE TO 23.1N 134.5W THIS AFTERNOON, 23.9N 137.2W SUN MORNING,
25.0N 139.9W SUN AFTERNOON, THEN BECOME POST-TROPICAL WEST OF THE
AREA NEAR 26.0N 142.3W MON MORNING. AWAY FROM GENEVIEVE, LITTLE
CHANGE IN MARINE CONDITIONS IS FORECAST THROUGH THE WEEKEND.
ROUGH NORTHERLY SWELL OFF CALIFORNIA IS LIKELY TO PUSH SOUTHWARD
INTO THE WATERS OFF BAJA CALIFORNIA NORTE NORTH OF 27N AND EAST
OF 130W BY THE END OF THE WEEKEND INTO EARLY NEXT WEEK. NEW LARGE
SOUTHERLY SWELL MAY BUILD SOUTH OF THE EQUATOR AND WEST OF 100W
BEGINNING TUE NIGHT.
SHORT-TERM MAZATLAN TO BAHIA BANDERAS
TODAY - Not available yet
TONITE - Not available yet
SUNDAY - Not available yet
SUNDAY NIGHT - Not available yet
LONG-TERM MAZATLAN TO BAHIA BANDERAS
MONDAY - Not available yet
TUESDAY - Not available yet
WEDNESDAY - Not available yet
THURSDAY - Not available yet
FRIDAY - Not available yet