Mazatlan to Banderas Bay Forecast
July 29, 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.
...HURRICANE WARNING...
.HURRICANE GENEVIEVE NEAR 18.8N 119.2W 960 MB AT 1500 UTC JUL 29
MOVING WNW OR 290 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 100 KT
GUSTS 120 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM N
SEMICIRCLE...120 NM SE QUADRANT AND 90 NM SW QUADRANT. SEAS 4 M
OR GREATER WITHIN 210 NM S SEMICIRCLE...240 NM NE QUADRANT AND
270 NM NW QUADRANT WITH SEAS TO 11 M. ELSEWHERE WITHIN 22N117W
TO 22N122W TO 18N123W TO 15N121W TO 14N118W TO 17N114W TO
22N117W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M. REMAINDER OF AREA
WITHIN 30N117W TO 30N127W TO 23N136W TO 16N136W TO 11N117W TO
19N112W TO 30N117W...INCLUDING NEAR SEBASTIAN VIZCAINO BAY AND
WITHIN 60 NM OF SHORE...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN
MIXED SWELL.
.24 HOUR FORECAST HURRICANE GENEVIEVE NEAR 19.9N 123.1W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS
WITHIN 100 NM NW AND SE QUADRANTS...110 NM NE QUADRANT AND 80 NM
SW QUADRANT. SEAS 4 M OR GREATER WITHIN 210 NM OF CENTER...EXCEPT
240 NM NW QUADRANT WITH SEAS TO 10 M. ELSEWHERE WITHIN 22N117W
TO 25N121W TO 23N127W TO 17N125W TO 17N120W TO 22N117W WINDS 20
TO 33 KT. SEAS 2.5 TO 4.0 M. REMAINDER OF AREA WITHIN 30N121W TO
27N140W TO 14N140W TO 16N134W TO 13N127W TO 18N117W TO 30N121W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN MIXED SWELL
.48 HOUR FORECAST TROPICAL STORM GENEVIEVE NEAR 21.4N 128.0W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE
WINDS WITHIN 90 NM N SEMICIRCLE...80 NM SE QUADRANT AND 60 NM SW
QUADRANT. SEAS 4 M OR GREATER WITHIN 180 NM OF CENTER...EXCEPT
150 NM SE QUADRANT WITH SEAS TO 9 M. ELSEWHERE WITHIN 24N124W TO
26N126W TO 26N133W TO 23N132W TO 18N128W TO 20N124W TO 24N124W
WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M. REMAINDER OF AREA WITHIN
24N122W TO 29N127W TO 27N140W TO 16N140W TO 15N130W TO 17N124W TO
24N122W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN MIXED SWELL
AWAY FROM THE IMPACTS OF GENEVIEVE, MODERATE TO LOCALLY FRESH NW
WINDS ASSOCIATED WITH HIGH PRESSURE BUILDING IN FROM THE
NORTHWEST ARE IMPACTING WATERS N AND W OF GUADALUPE ISLAND. THIS
SAME HIGH IS LEADING TO MODERATE TO LOCALLY FRESH WINDS
JUST OFFSHORE CABO SAN LUCAS AND IN PORTIONS OF THE FAR SOUTHERN
GULF OF CALIFORNIA. ELSEWHERE, 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
110W AND OFFSHORE BAJA CALIFORNIA DUE TO GENEVIEVE.
HURRICANE GENEVIEVE IS CENTERED NEAR 18.8N 119.2W AT 29/1500
UTC, MOVING WEST-NORTHWEST AT 7 KT. ESTIMATED MINIMUM CENTRAL
PRESSURE IS 960 MB. MAXIMUM SUSTAINED WIND SPEED IS 100 KT WITH
GUSTS TO 120 KT. PEAK SEAS ARE NEAR 37 TO 38 FT, OR 11 M.
NUMEROUS MODERATE ISOLATED STRONG CONVECTION IS WITHIN 120 NM IN
THE NE SEMICIRCLE AND 75 NM IN THE SW SEMICIRCLE. SCATTERED TO
NUMEROUS MODERATE CONVECTION IS NOTED ELSEWHERE WITHIN ABOUT 180
NM IN THE E SEMICIRCLE AND 90 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. GENEVIEVE IS A CATEGORY 3 HURRICANE ON THE SAFFIR-
SIMPSON HURRICANE WIND SCALE. STEADY WEAKENING IS EXPECTED DURING
THE NEXT FEW DAYS, BUT GENEVIEVE IS FORECAST TO REMAIN A
HURRICANE THROUGH THU NIGHT. 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. A DEPICTION OF RIP CURRENT RISK FOR
THE UNITED STATES CAN BE FOUND AT:
HURRICANES.GOV/GRAPHICS_EP2.SHTML?RIPCURRENTS
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 19.2N 120.7W
THIS EVENING, 19.9N 123.1W THU MORNING, 20.6N 125.5W THU
EVENING, WEAKEN TO A TROPICAL STORM NEAR 21.4N 128.0W FRI
MORNING, 22.1N 130.7W FRI EVENING, AND 23.0N 133.5W SAT MORNING.
GENEVIEVE WILL BECOME POST-TROPICAL AS IT MOVES TO 24.7N 139.1W
EARLY SUN. ASSOCIATED SEAS OF ROUGH OR GREATER WILL FINALLY
SUBSIDE ACROSS THE OFFSHORE WATERS OF BAJA CALIFORNIA THROUGH THE
DAY THU. ELSEWHERE, FRESH TO LOCALLY STRONG NORTHERLY WINDS ARE
LIKELY IN THE GULF OF TEHUNATEPEC THU AND FRI NIGHTS. OTHERWISE,
AREAS OF FRESH MAINLY WESTERLY GAP WINDS ARE EXPECTED THROUGH
TONIGHT NEARSHORE BAJA CALIFORNIA AS HIGH PRESSURE BUILDS
SOUTHWARD TO THE WEST OF THE BAJA CALIFORNIA PENINSULA. LOOKING
AHEAD, ROUGH NORTHERLY SEAS MAY BUILD SOUTH OF 30N INTO THE
WATERS OFF BAJA CALIFORNIA NORTE BY THE END OF THE WEEKEND INTO
EARLY NEXT WEEK.
FOR THE FORECAST, HURRICANE GENEVIEVE WILL MOVE TO 19.2N 120.7W
THIS EVENING, 19.9N 123.1W THU MORNING, 20.6N 125.5W THU EVENING,
WEAKEN TO A TROPICAL STORM NEAR 21.4N 128.0W FRI MORNING, 22.1N
130.7W FRI EVENING, AND 23.0N 133.5W SAT MORNING. GENEVIEVE WILL
BECOME POST-TROPICAL AS IT MOVES TO 24.7N 139.1W EARLY SUN. 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
THURSDAY - SW 4-5, Seas SSW 1.2-4.7 ft @ 14sec
THURSDAY NIGHT - SSW 1-1, Seas SSW --? ft @ 16sec
LONG-TERM MAZATLAN TO BAHIA BANDERAS
FRIDAY - Not available yet
SATURDAY - WNW 7-9, Seas SSW 0.9-3.2 ft @ 12sec
SUNDAY - WNW 8-10, Seas SSW 0.9-2.8 ft @ 14sec
MONDAY - WNW 7-9, Seas N/A ?-? ft @ ?
TUESDAY - WNW 6-8, Seas N/A ?-? ft @ ?