Mazatlan to Banderas Bay Forecast
August 30, 2026, 2:00 pm (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 17.2N 122.1W 980 MB AT 1500 UTC AUG 30 MOVING
WNW OR 285 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT.
TROPICAL STORM FORCE WINDS WITHIN 200 NM NE QUADRANT...180 NM SE
QUADRANT...90 NM SW QUADRANT...AND 160 NM NW QUADRANT. SEAS 4 M OR
GREATER WITHIN 330 NM NE QUADRANT...300 NM SE QUADRANT...150 NM SW
QUADRANT...AND 240 NM NW QUADRANT WITH SEAS TO 10 M. ELSEWHERE
WITHIN 210 NM OF CENTER...EXCEPT 240 NE QUADRANT WINDS 20 TO 33 KT.
SEAS 2.5 TO 4 M FROM 10N TO 23N BETWEEN 113W AND 127W.
.24 HOUR FORECAST HURRICANE KARINA NEAR 17.6N 125.1W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS
WITHIN 140 NM E SEMICIRCLE...70 NM SW QUADRANT AND 120 NM NW
QUADRANT. SEAS 4 M OR GREATER 300 N AND 180 S SEMICIRCLES WITH SEAS
TO 11 M. ELSEWHERE WITHIN 210 NM OF CENTER...EXCEPT 240 NE QUADRANT
WINDS 20 TO 33 KT. SEAS 2.5 TO 4 M FROM 10N TO 25N BETWEEN 116W AND
132W.
.48 HOUR FORECAST HURRICANE KARINA NEAR 18.1N 128.7W. MAXIMUM
SUSTAINED WINDS 105 KT GUSTS 130 KT. TROPICAL STORM FORCE WINDS
WITHIN 110 NM NW AND SE QUADRANTS...125 NM NE QUADRANT AND 80 NM SW
QUADRANT. SEAS 4 M OR GREATER 270 N AND 180 S SEMICIRCLES WITH SEAS
TO 12 M. ELSEWHERE WITHIN 210 NM OF CENTER...EXCEPT 240 NE QUADRANT
WINDS 20 TO 33 KT. SEAS 2.5 TO 4 M FROM 10N TO 25N BETWEEN 120W AND
135W.
...HURRICANE WARNING...
.TROPICAL STORM LOWELL NEAR 13.3N 140.4W 1000 MB AT 1500 UTC AUG 30
MOVING W OR 270 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55
KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM E SEMICIRCLE AND 60 NM W
SEMICIRCLE. SEAS 4 M OR GREATER WITHIN 0 NM E SEMICIRCLE...60 NM SW
QUADRANT AND 30 NM NW QUADRANT WITH SEAS TO 4.0 M. OVER FORECAST
WATERS FROM 11N TO 16N W OF 137W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0
M.
.24 HOUR FORECAST TROPICAL STORM LOWELL W OF AREA NEAR 13.3N 144.1W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE
WINDS WITHIN 40 NM E SEMICIRCLE AND 60 NM W SEMICIRCLE. OVER
FORECAST WATERS WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST HURRICANE LOWELL WELL W OF AREA NEAR 13.5N
148.0W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM
FORCE WINDS WITHIN 50 NM NE QUADRANT...40 NM SE QUADRANT...60 NM SW
QUADRANT...AND 70 NM NW QUADRANT. OVER FORECAST WATERS WINDS 20 KT
OR LESS. SEAS LESS THAN 2.5 M.
WHILE THE MAIN IMPACTS OF KARINA REMAIN WEST OF THE MEXICAN
OFFSHORE WATERS, STRONG TO NEAR GALE FORCE WINDS AND ROUGH TO
VERY ROUGH SEAS ON THE FAR NORTHEAST PERIPHERY OF KARINA ARE
REACHING THE REVILLAGIGEDO ISLANDS. OUTER RAINBANDS ASSOCIATED
WITH THE CYCLONE'S CIRCULATION ARE ALSO MOVING ACROSS THE
ISLANDS. FRESH TO STRONG N GAP WINDS CONTINUE TO BLOW ACROSS
TEHUANTEPEC REGION AND DOWNWIND TO NEAR 14N. GENTLE TO LOCALLY
MODERATE SOUTHERLY WINDS AND SLIGHT SEAS DOMINATE THE GULF OF
CALIFORNIA EXCEPT THE NORTHERN PART WHERE FRESH TO LOCALLY STRONG
WINDS AND MODERATE SEAS ARE NOTED. GENTLE TO MODERATE WINDS AND
MODERATE SEAS ARE NOTED ELSEWHERE.
FOR THE FORECAST, HURRICANE KARINA KARINA WILL MOVE TO 17.5N
123.5W THIS EVENING, 17.6N 125.1W MON MORNING, 17.8N 126.9W MON
EVENING, 18.1N 128.7W TUE MORNING, 18.6N 130.3W TUE EVENING, AND
19.1N 131.9W WED MORNING. KARINA WILL CHANGE LITTLE IN INTENSITY
AS IT MOVES TO NEAR 20.0N 135.1W EARLY THU. THE FRESH SE WINDS
IMPACTING THE REVILLAGIGEDO ISLANDS, PARTICULARLY CLARION ISLAND,
ON THE FAR EASTERN PERIPHERY OF HURRICANE KARINA, WILL DIMINISH
THROUGH LATE TODAY AS THE STORM MOVES FARTHER WEST. ASSOCIATED
ROUGH TO VERY ROUGH SEAS WILL GRADUALLY SUBSIDE FROM EAST TO WEST
ACROSS THE ISLANDS BY TONIGHT. FRESH TO STRONG NORTHERLY GAP
WINDS AND OCCASIONAL ROUGH SEAS WILL CONTINUE TO PULSE IN THE
GULF OF TEHUANTEPEC THROUGH THIS MORNING. FRESH TO STRONG
SOUTHERLY WINDS ARE EXPECTED ACROSS THE NORTHERN AND CENTRAL GULF
OF CALIFORNIA THROUGH TONIGHT INTO MON. LOOKING AHEAD, AN AREA
OF DISTURBED WEATHER, ASSOCIATED WITH A TROPICAL WAVE, IS LOCATED
WELL TO THE SOUTH OF SOUTHWESTERN MEXICO. THIS SYSTEM IS
EXPECTED TO CONTINUE TO MOVE WEST-NORTHWESTWARD TO NORTHWESTWARD
AT 10 TO 15 MPH. ENVIRONMENTAL CONDITIONS APPEAR FAVORABLE FOR
GRADUAL DEVELOPMENT OF THIS SYSTEM, AND A TROPICAL DEPRESSION IS
LIKELY TO FORM DURING THE EARLY TO MIDDLE PART OF NEXT WEEK.
HURRICANE KARINA IS CENTERED NEAR 17.3N 122.1W AT 30/1500 UTC,
MOVING WEST-NORTHWEST AT 8 KT. ESTIMATED MINIMUM CENTRAL
PRESSURE IS 980 MB. MAXIMUM SUSTAINED WIND SPEED IS 70 KT WITH
GUSTS TO 85 KT. PEAK SEAS ARE AROUND 33 FT (10 M). NUMEROUS
MODERATE TO SCATTERED STRONG CONVECTION IS NOTED WITHIN 120 NM
OF THE CENTER. KARINA IS MOVING TOWARD THE WEST- NORTHWEST. A
SLOWER WESTWARD TO WEST-NORTHWESTWARD MOTION IS EXPECTED DURING
THE NEXT FEW DAYS. STEADY TO RAPID STRENGTHENING SEEMS LIKELY,
AND KARINA IS FORECAST TO BECOME A MAJOR HURRICANE IN A DAY OR
SO. SWELLS GENERATED BY KARINA WILL AFFECT PORTIONS OF THE COAST
OF SOUTHWEST MEXICO AND THE BAJA CALIFORNIA PENINSULA FOR THE
NEXT COUPLE OF DAYS. 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
TODAY - E 3-4, Seas SSW 0-4.9 ft @ 14sec
TONITE - E 3-4, Seas SSW 0-4.4 ft @ 14sec
MONDAY - WNW 7-9, Seas SSW 0-4.1 ft @ 13sec
MONDAY NIGHT - WSW 2-3, Seas SSW 0-4 ft @ 13sec
LONG-TERM MAZATLAN TO BAHIA BANDERAS
TUESDAY - WSW 6-7, Seas SSW 0.7-3.7 ft @ 13sec
WEDNESDAY - ENE 10-13, Seas SSW 0-3.7 ft @ 17sec
THURSDAY - W 6-8, Seas SSW 0-6.2 ft @ 17sec
FRIDAY - NNW 12-15, Seas SSW 0-5.5 ft @ 16sec
SATURDAY - N 10-12, Seas SSW 0-5.3 ft @ 16sec