Mazatlan to Banderas Bay Forecast
August 1, 2026, 9:13 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 23.3N 135.0W 1003 MB AT 2100 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 M. ELSEWHERE WITHIN 27N133W TO 28N138W TO 27N140W
TO 24N140W TO 22N136W TO 24N132W TO 27N133W WINDS 20 TO 33 KT.
SEAS 3.0 TO 4.0 M. REMAINDER OF AREA WITHIN 30N132W TO 30N140W
TO 19N140W TO 19N135W TO 22N132W TO 30N132W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM GENEVIEVE NEAR 24.8N 139.5W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE
WINDS WITHIN 0 NM S SEMICIRCLE...90 NM NE QUADRANT AND 70 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM N AND 60 S SEMICIRCLES
WITH SEAS TO 5 M. ELSEWHERE WITHIN 28N138W TO 30N140W TO 25N140W TO
25N139W TO 27N137W TO 28N138W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0
M.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW GENEVIEVE W OF AREA NEAR
26.7N 143.7W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. OVER
FORECAST WATERS E OF 140W WINDS 20 KT OR LESS. SEAS LESS THAN 2.5
M.
GENTLE TO MODERATE WINDS PREVAIL ACROSS THE REGION. 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 SW WINDS AND BUILDING SEAS OVER THE NORTHERN
GULF OF CALIFORNIA THROUGH THE EARLY PART OF NEXT WEEK.
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 23.9N 137.0W SUN MORNING, 24.8N 139.5W SUN AFTERNOON, THEN BECOME
A POST-TROPICAL REMNANT LOW WEST OF THE AREA THROUGH MON. 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 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
MONDAY - Not available yet
MONDAY NIGHT - Not available yet
LONG-TERM MAZATLAN TO BAHIA BANDERAS
TUESDAY - Not available yet
WEDNESDAY - Not available yet
THURSDAY - Not available yet
FRIDAY - Not available yet
SATURDAY - Not available yet