Mazatlan to Banderas Bay Forecast
October 13, 2026, 8:00 pm (UTC: -05:00)
Subject: Mazatlan to Banderas Bay Forecast
Questions/Comments visit https://svsarana.com
This forecast has not been reviewed. It was generated from an automatic model.
.WARNINGS.
...HURRICANE WARNING...
.TROPICAL STORM TRUDY NEAR 10.6N 96.5W 1005 MB AT 2100 UTC OCT
13 MOVING NW OR 320 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM OF CENTER
EXCEPT 40 NM NE QUADRANT. SEAS 4 M OR GREATER WITHIN 0 NM S
SEMICIRCLE...90 NM NE QUADRANT AND 60 NM NW QUADRANT WITH SEAS TO
5.5 M. ELSEWHERE WITHIN 12N95W TO 12N96W TO 11N97W TO 11N96W TO
10N96W TO 11N94W TO 12N95W WINDS 20 TO 33 KT. SEAS 2.5 TO 3.5 M.
REMAINDER OF AREA WITHIN 12N94W TO 13N96W TO 12N98W TO 10N99W TO
09N96W TO 10N94W TO 12N94W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM TRUDY NEAR 12.0N 99.0W. MAXIMUM
SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE WINDS
WITHIN 80 NM NE QUADRANT...40 NM SE QUADRANT...30 NM SW
QUADRANT...AND 50 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 120
NM NE...30 NM SE...15 NM SW...AND 150 NM NW QUADRANTS WITH SEAS
TO 5 M. ELSEWHERE WITHIN 14N97W TO 14N99W TO 13N101W TO 11N101W
TO 11N99W TO 12N98W TO 14N97W WINDS 20 TO 33 KT. SEAS 3.5 TO 4 M.
REMAINDER OF AREA WITHIN 15N97W TO 14N101W TO 13N102W TO 10N102W
TO 09N100W TO 11N97W TO 15N97W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.5 M IN MIXED SWELL.
.36 HOUR FORECAST HURRICANE TRUDY NEAR 12.7N 100.1W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. SEAS TO 5.5 M.
.48 HOUR FORECAST HURRICANE TRUDY NEAR 13.5N 100.8W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS
WITHIN 100 NM NE QUADRANT...80 NM SE QUADRANT...60 NM SW
QUADRANT...AND 70 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 150
NM N AND 60 NM S SEMICIRCLES WITH SEAS TO 6 M. ELSEWHERE WITHIN
14N99W TO 16N103W TO 13N104W TO 11N103W TO 10N100W TO 12N100W TO
14N99W WINDS 20 TO 33 KT. SEAS 4.0 TO 5.0 M IN SE SWELL.
REMAINDER OF AREA WITHIN 15N98W TO 17N102W TO 13N106W TO 07N104W
TO 06N100W TO 09N97W TO 15N98W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.5 M IN MIXED SWELL.
...HURRICANE WARNING...
.HURRICANE SIMON NEAR 20.2N 107.5W 977 MB AT 2100 UTC OCT 13
MOVING W OR 260 DEG AT 2 KT. MAXIMUM SUSTAINED WINDS 80 KT GUSTS
100 KT. TROPICAL STORM FORCE WINDS WITHIN 30 NM OF CENTER. SEAS
4 M OR GREATER WITHIN 60 NM E SEMICIRCLE...30 NM SW QUADRANT AND
45 NM NW QUADRANT WITH SEAS TO 5.5 M. ELSEWHERE WITHIN 20.5N107.5W
TO 20.5N108W TO 20N108W TO 19.5N107.5W TO 20N107W TO 20.5N107.5W...
INCLUDING NEAR CABO CORRIENTES...WINDS 20 TO 33 KT. SEAS 3.5 TO
4 M. REMAINDER OF AREA WITHIN 21N106W TO 22N107W TO 22N111W TO
21N111W TO 19N108W TO 20N106W TO 21N106W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.5 M IN S TO SW SWELL.
.24 HOUR FORECAST HURRICANE SIMON NEAR 19.8N 108.1W. MAXIMUM
SUSTAINED WINDS 90 KT GUSTS 110 KT. LITTLE CHANGE IN TROPICAL
STORM FORCE WINDS. SEAS 4 M OR GREATER WITHIN 60 NM NW
SEMICIRCLE... 30 NM SW QUADRANT AND 15 NM SE QUADRANT WITH SEAS
TO 4.5 M. ELSEWHERE FORECAST WITHIN 20.5N108W TO 20N109W TO
19.5N109W TO 20N108.5W TO 19.5N108W TO 19.5N107.5W TO 20.5N108W
WINDS 20 TO 33 KT. SEAS 2.5 TO 3.5 M. REMAINDER OF AREA WITHIN
22N107W TO 22N109W TO 21N111W TO 19N110W TO 18N108W TO 20N106W TO
22N107W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN W TO NW SWELL
.48 HOUR FORECAST HURRICANE SIMON NEAR 19.8N 107.6W. MAXIMUM
SUSTAINED WINDS 85 KT GUSTS 105 KT. LITTLE CHANGE IN TROPICAL
STORM FORCE WINDS. SEAS 4 M OR GREATER WITHIN 60 NM N AND 30 NM S
SEMICIRCLE WITH SEAS TO 4.5 M. ELSEWHERE WITHIN 20.5N107W TO
20N107.5W TO 20N108W TO 19.5N108W TO 19N107.5W TO 19.5N107W TO
20.5N107W WINDS 20 TO 33 KT. SEAS 3.0 TO 3.5 M. REMAINDER OF AREA
WITHIN 22N107W TO 21N108W TO 20N108W TO 19N108W TO 20N107W TO
20N106W TO 22N107W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN
MERGING NW AND S SWELL.
.24 HOUR FORECAST WITHIN 31N114W TO 31N115W TO 30N115W TO
28N113W TO 28N112W TO 29N113W TO 31N114W...INCLUDING THE GULF OF
CALIFORNIA...NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 31N114W TO 31N115W TO 30N115W TO
30N113W TO 28N113W TO 30N113W TO 31N114W...INCLUDING THE GULF OF
CALIFORNIA...NW TO N WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.
HURRICANE SIMON IS CENTERED NEAR 20.2N 107.5W AT 2100 UTC,
MOVING WEST AT 2 KT. ESTIMATED MINIMUM CENTRAL PRESSURE IS 977
MB. MAXIMUM SUSTAINED WIND SPEED IS 80 KT WITH GUSTS TO 100 KT.
PEAK SEAS ARE NEAR 20 FT. NUMEROUS MODERATE TO STRONG CONVECTION
IS WITHIN 30 NM OF THE CENTER. SCATTERED TO NUMEROUS MODERATE
AND ISOLATED STRONG CONVECTION IS ELSEWHERE FROM 18.5N TO 21N
BETWEEN 106.59W AND 109W. SIMON IS VERY SMALL AND LOCATED IN AN
AREA OF WEAK STEERING CURRENTS. SIMON IS EXPECTED TO MOVE S TO SW
DURING THE NEXT 24-36 HOURS, AND THEN AFTER 48 HOURS, BEGIN A
NORTHWARD MOTION. SIMON COULD APPROACH THE COAST OF WESTERN
MEXICO THIS WEEKEND. INTERESTS IN WEST-CENTRAL MEXICO AND BAJA
CALIFORNIA SUR SHOULD CONTINUE TO CLOSELY MONITOR THE LATEST
UPDATES TO SIMON'S FORECAST. CHANGES TO WATCHES AND WARNINGS
COULD BE REQUIRED TONIGHT OR WED BASED ON THE LATEST FORECAST
TRENDS. ASSOCIATED HEAVY RAINFALL WILL PRODUCE LIFE- THREATENING
FLOODING AND MUDSLIDES OR WORSEN ANY ON- GOING FLOODING,
ESPECIALLY IN AREAS OF STEEP TERRAIN. SWELLS GENERATED BY SIMON
WILL AFFECT PORTIONS OF THE COAST OF SOUTHWESTERN AND WEST-
CENTRAL MEXICO DURING THE NEXT FEW DAYS, AS WELL AS THE SOUTHERN
GULF OF CALIFORNIA. THESE SWELLS ARE LIKELY TO CAUSE LARGE AND
POWERFUL SURF AND LIFE- THREATENING RIP CURRENT CONDITIONS.
PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER OFFICE.
ASIDE FROM CONDITIONS ASSOCIATED WITH SIMON, WHICH IS SMALL IN
SIZE, MAINLY GENTLE TO MODERATE WINDS PREVAIL ACROSS THE WATERS
BETWEEN A DYING STATIONARY FRONT EXTENDING FROM CENTRAL BAJA TO
20N125W AND PUERTO ANGEL. SEAS THERE ARE 6 TO 8 FT IN MERGING SW
AND NW SWELL. MODERATE TO LOCALLY FRESH N TO NE WINDS ARE WITHIN
150 NM N OF THE FRONT OVER THE BAJA OFFSHORE WATERS, WITH FRESH
NW TO N WINDS BEHIND THE FRONT IN THE FAR NORTHERN GULF OF
CALIFORNIA. SEAS ARE 7 TO 9 FT IN NW SWELL ACROSS THE PACIFIC
WATER BEHIND THE FRONT AND 3 TO 5 FT IN THE NORTHERN GULF. GENTLE
TO MODERATE NORTHERLY WINDS ARE ELSEWHERE N OF THE FRONT.
TO THE EAST, FRESH NORTHERLY WINDS ARE FUNNELING THROUGH THE
GULF OF TEHUANTEPEC IN RESPONSE TO TROPICAL STORM TRUDY, WHERE
SEAS ARE 6 TO 7 FT. FRESH TO STRONG N TO NE WINDS OCCURRING ON
THE PERIPHERY OF TRUDY PREVAIL ACROSS THE FAR OUTER WATERS S OF
TEHUANTEPEC AND OAXACA, WHERE SEAS ARE 7 TO 10 FT.
FOR THE FORECAST, SIMON WILL MOVE SLOWLY S TO SW THROUGH THU,
REACHING NEAR 19.5N 108W WED NIGHT, THEN BEGIN TO MOVE
NORTHWARD, REACHING NEAR 19.8N 107.6W THU AFTERNOON, NEAR 21.0N
107.8W THU NIGHT, NEAR 22.6N 108.8W FRI AFTERNOON, NEAR 24.4N
110.2W SAT AFTERNOON NEAR BAJA, AND THEN INLAND NEAR 28.8N 111.1W
BY SUN AFTERNOON. A STATIONARY FRONT DRIFTING ACROSS THE
NORTHERN WATERS WILL GRADUALLY DISSIPATE TONIGHT. ROUGH SEAS IN
NW SWELL WEST OF BAJA CALIFORNIA WILL GRADUALLY DIMINISH THROUGH
EARLY WED. ELSEWHERE, TROPICAL STORM TRUDY NEAR 10.6N 96.5W AT 2
PM, MOVING NW AT 7 KT. A WEST- NORTHWESTWARD TO NORTHWESTWARD
MOTION SHOULD CONTINUE OVER THE NEXT 36 HOURS, THEN A DECREASE IN
FORWARD SPEED AND TURN TOWARD THE NORTH-NORTHWEST IS EXPECTED
AFTER 48 HOURS. STEADY TO RAPID STRENGTHENING IS FORECAST, WITH A
MAJOR HURRICANE OFFSHORE OF SW OR WEST-CENTRAL MEXICO POSSIBLE
LATE FRI THROUGH THE WEEKEND.
A DYING STATIONARY FRONT EXTENDS ACROSS THE NE WATERS FROM
CENTRAL BAJA CALIFORNIA NORTE TO 20N125W. MODERATE TO FRESH N TO
NE WINDS AND ROUGH SEAS OF 7 TO 10 FT IN NW SWELL COVER THE
WATERS N OF 20N BEHIND THE FRONT. LIGHT TO GENTLE WINDS AND SEAS
OF 6 TO 8 FT IN MERGING NW AND SW SWELL GENERALLY PREVAIL
ELSEWHERE S OF 20N W OF 110W, EXCEPT FOR MODERATE SE TO S WINDS
NEAR THE EQUATOR. THUNDERSTORMS ARE VERY ACTIVE WITHIN 180 NM OF
THE ITCZ W OF 108W.
SHORT-TERM MAZATLAN TO BAHIA BANDERAS
DATA NOTE - Using cached forecast from 6 hours ago.
TODAY - SSW 13-16, Seas SSW 3.7-5.9 ft @ 16sec
TONITE - NW 10-13, Seas SSW 5.3-6.8 ft @ 15sec
WEDNESDAY - NW 10-13, Seas SSW 5.3-6.8 ft @ 15sec
WEDNESDAY NIGHT - NNW 10-12, Seas SSW 0-3.9 ft @ 15sec
LONG-TERM MAZATLAN TO BAHIA BANDERAS
THURSDAY - NNW 10-12, Seas SSW 0-3.9 ft @ 15sec
FRIDAY - NW 8-10, Seas SSW 0-4.6 ft @ 18sec
SATURDAY - NW 12-15, Seas SSW 0-5.2 ft @ 16sec
SUNDAY - NW 9-11, Seas SSW 1.9-4.1 ft @ 16sec
MONDAY - NW 7-9, Seas SSW 0-3.8 ft @ 15sec