Mazatlan to Banderas Bay Forecast
July 29, 2026, 9:00 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.
...HURRICANE WARNING...
.HURRICANE GENEVIEVE NEAR 19.2N 120.1W 970 MB AT 2100 UTC JUL 29
MOVING WNW OR 290 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 85 KT
GUSTS 105 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM E
SEMICIRCLE...80 NM SW QUADRANT AND 100 NM NW QUADRANT.SEAS 4 M
OR GREATER WITHIN 210 NM OF CENTER EXCEPT 240 NM NW QUADRANT WITH
SEAS TO 11 M. ELSEWHERE WITHIN 20N116W TO 23N120W TO 22N123W TO
17N124W TO 15N122W TO 16N116W TO 20N116W WINDS 20 TO 33 KT. SEAS
2.5 TO 4.0 M. REMAINDER OF AREA WITHIN 21N113W TO 30N118W TO
30N128W TO 23N140W TO 16N140W TO 12N122W TO 21N113W WINDS 20 KT
OR LESS. SEAS 2.5 TO 3.5 M IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE GENEVIEVE NEAR 20.4N 124.2W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS
WITHIN 110 NM NE QUADRANT...90 NM SE QUADRANT...70 NM SW
QUADRANT...AND 100 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 210
NM N SEMICIRCLE...AND 180 NM S SEMICIRCLE WITH SEAS TO 10 M.
ELSEWHERE WITHIN 21N119W TO 24N122W TO 24N127W TO 19N128W TO
17N126W TO 19N120W TO 21N119W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0
M. REMAINDER OF AREA WITHIN 22N117W TO 30N122W TO 27N140W TO
15N140W TO 13N129W TO 15N122W TO 22N117W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.5 M IN MIXED SWELL.
.36 HOUR FORECAST TROPICAL STORM GENEVIEVE NEAR 21.2N 126.6W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.
.48 HOUR FORECAST TROPICAL STORM GENEVIEVE NEAR 22.0N 129.2W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE
WINDS WITHIN 90 NM NE QUADRANT...70 NM SE QUADRANT...50 NM SW
QUADRANT...AND 80 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN
180 NM N SEMICIRCLE...AND 150 NM S SEMICIRCLE WITH SEAS TO 8.5
M. ELSEWHERE WITHIN 24N125W TO 27N129W TO 27N132W TO 24N134W TO
20N132W TO 19N127W TO 24N125W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0
M. REMAINDER OF AREA WITHIN 25N123W TO 29N128W TO 27N140W TO
15N140W TO 21N133W TO 17N127W TO 25N123W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.5 M IN MIXED SWELL.
AWAY FROM THE IMPACTS OF GENEVIEVE, MODERATE OR WEAKER WINDS
PREVAIL. SEAS ARE SLIGHT IN THE GULF OF CALIFORNIA AND MODERATE
IN THE REMAINING OFFSHORE WATERS, EXCEPT ROUGH TO VERY ROUGH WEST
OF 112W AND THE OUTER OFFSHORE WATERS OF BAJA CALIFORNIA DUE TO
GENEVIEVE.
FOR THE FORECAST, HURRICANE GENEVIEVE WILL MOVE TO 19.7N 121.8W
THU MORNING, 20.4N 124.2W THU AFTERNOON, WEAKEN TO A TROPICAL
STORM NEAR 21.2N 126.6W FRI MORNING, 22.0N 129.2W FRI AFTERNOON,
22.7N 132.0W SAT MORNING, AND 23.5N 134.9W SAT AFTERNOON.
GENEVIEVE WILL BECOME POST-TROPICAL AS IT MOVES TO 25.4N 140.2W
SUN AFTERNOON. ASSOCIATED SEAS AT ROUGH OR GREATER HEIGHTS WILL
FINALLY SUBSIDE ACROSS THE OFFSHORE WATERS OF BAJA CALIFORNIA
THROUGH THE DAY THU. ELSEWHERE, FRESH NORTHERLY WINDS ARE LIKELY
IN THE GULF OF TEHUNATEPEC THU AND FRI NIGHTS. OTHERWISE, AREAS
OF FRESH MAINLY WESTERLY GAP WINDS ARE EXPECTED THROUGH THU NIGHT
NEARSHORE BAJA CALIFORNIA AS HIGH PRESSURE BUILDS SOUTHWARD TO
THE WEST OF THE BAJA CALIFORNIA PENINSULA. MODERATE TO LOCALLY
FRESH SE TO S WINDS MAY PULSE IN THE NORTHERN GULF OF CALIFORNIA
BEGINNING THIS WEEKEND. LOOKING AHEAD, ROUGH NORTHERLY SEAS MAY
BRIEFLY BUILD SOUTH OF 30N INTO THE WATERS OFF BAJA CALIFORNIA
NORTE BY THE END OF THE WEEKEND INTO EARLY NEXT WEEK.
HURRICANE GENEVIEVE IS CENTERED NEAR 19.2N 120.1W AT 29/2100
UTC, MOVING WEST-NORTHWEST AT 8 KT. ESTIMATED MINIMUM CENTRAL
PRESSURE IS 970 MB. MAXIMUM SUSTAINED WIND SPEED IS 85 KT WITH
GUSTS TO 105 KT. PEAK SEAS ARE NEAR 36 FT OR 11 M. NUMEROUS
MODERATE ISOLATED STRONG CONVECTION IS WITHIN 180 NM IN THE NE
QUADRANT, 300 NM IN THE SE QUADRANT, AND 150 NM IN THE W
SEMICIRCLE. GENEVIEVE IS MOVING TOWARD THE WEST-NORTHWEST. THIS
GENERAL MOTION WITH A SLIGHT INCREASE IN FORWARD SPEED IS
EXPECTED DURING THE NEXT SEVERAL DAYS. STEADY WEAKENING IS
EXPECTED DURING THE NEXT COUPLE OF DAYS, AND GENEVIEVE IS
FORECAST TO BECOME POST-TROPICAL THIS WEEKEND. SWELLS GENERATED
BY GENEVIEVE ARE AFFECTING PORTIONS OF THE BAJA CALIFORNIA
PENINSULA AND WILL REACH SOUTHERN CALIFORNIA TODAY. THESE SWELLS
WILL PERSIST FOR THE NEXT SEVERAL DAYS AND ARE LIKELY TO CAUSE
LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS. PLEASE CONSULT
PRODUCTS FROM YOUR LOCAL WEATHER OFFICE. PLEASE READ THE LATEST
HIGH SEAS FORECAST ISSUED BY THE NATIONAL HURRICANE CENTER AT
WEBSITE - HTTPS://WWW.NHC.NOAA.GOV/TEXT/MIAHSFEP2.SHTML AND THE
LATEST GENEVIEVE NHC FORECAST/ADVISORY AND PUBLIC ADVISORY AT
WWW.HURRICANES.GOV FOR MORE DETAILS.
PLEASE REFER TO THE SPECIAL FEATURES SECTION FOR INFORMATION ON
HURRICANE GENEVIEVE WITH TROPICAL STORM FORCE OR GREATER WINDS
JUST BEYOND THE BAJA CALIFORNIA SUR OFFSHORE WATERS. PLEASE
REFER TO THE TROPICAL WAVES AND MONSOON TROUGH/ITCZ SECTIONS
ABOVE FOR INFORMATION ABOUT ADDITIONAL CONVECTION IN THE REGION.
FOR THE FORECAST, HURRICANE GENEVIEVE WILL MOVE TO 19.7N 121.8W
THU MORNING, 20.4N 124.2W THU AFTERNOON, WEAKEN TO A TROPICAL
STORM NEAR 21.2N 126.6W FRI MORNING, 22.0N 129.2W FRI AFTERNOON,
22.7N 132.0W SAT MORNING, AND 23.5N 134.9W SAT AFTERNOON.
GENEVIEVE WILL BECOME POST-TROPICAL AS IT MOVES TO 25.4N 140.2W
SUN AFTERNOON. AWAY FROM GENEVIEVE, LITTLE CHANGE IN MARINE
CONDITIONS IS FORECAST ACROSS THE REMAINDER OF THE WATERS INTO
NEXT WEEKEND. LOOKING AHEAD, FRESH AND ROUGH NORTHERLY SWELL OFF
CALIFORNIA MAY PUSH SOUTHWARD INTO THE WATERS OFF BAJA CALIFORNIA
NORTE NORTH OF 27N AND EAST OF 130W BY THE END OF THIS WEEKEND
INTO EARLY NEXT WEEK.
SHORT-TERM MAZATLAN TO BAHIA BANDERAS
TODAY - Not available yet
TONITE - Not available yet
FRIDAY - Not available yet
FRIDAY NIGHT - Not available yet
LONG-TERM MAZATLAN TO BAHIA BANDERAS
SATURDAY - WNW 9-11, Seas SSW 0.9-3.1 ft @ 12sec
SUNDAY - WNW 8-10, Seas SSW 1-2.9 ft @ 13sec
MONDAY - W 5-6, Seas SSW 1-2.7 ft @ 14sec
TUESDAY - W 6-8, Seas N/A ?-? ft @ ?
WEDNESDAY - Not available yet