Sea of Cortez Southern Crossing Forecast
May 21, 2026, 3:00 pm (UTC: -04:00)
Subject: Sea of Cortez Southern Crossing Forecast
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This forecast has not been reviewed. It was generated from an automatic model.
WARNINGS
.NONE.
A WEAK PRESSURE GRADIENT PREVAILS OVER THE REGION, LEADING TO
MAINLY LIGHT TO GENTLE WINDS. MODERATE TO LOCALLY FRESH NW WINDS
ARE IMPACTING WATERS NEAR AND OFFSHORE OF CABO SAN LUCAS AS
MODEST RIDGING BUILDS IN FROM THE N PACIFIC. SEAS ARE MODERATE, 4
TO 6 FT IN NW SWELL ACROSS THE OFFSHORE WATERS, EXCEPT TO 7 FT NW
OF ISLA GUADALUPE, AND SLIGHT IN THE GULF OF CALIFORNIA.
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE MOVING WESTWARD
ACROSS THE OUTER WATERS OF THE GULF OF TEHUANTEPEC, BEHIND A
TROPICAL WAVE.
FOR THE FORECAST, A WEAK PRESSURE GRADIENT WILL DOMINATE THROUGH
LATE WEEK, LEADING TO MODERATE SEAS AND MODERATE OR WEAKER WINDS.
BY LATE WEEKEND AND EARLY NEXT WEEK, RIDGING BUILDING SW TOWARD
THE REGION WILL LEAD TO MODERATE TO LOCALLY FRESH WINDS OFFSHORE
BAJA CALIFORNIA, ALONG WITH A SLIGHT INCREASE IN SEAS.
A SURFACE TROUGH THAT HAD BEEN W OF BAJA CALIFORNIA HAS
DISSIPATED, AND ASSOCIATED SHOWER ACTIVITY HAS ALSO DISSIPATED.
FARTHER SOUTH, A 1008 MB LOW PRESSURE IS NEAR THE MONSOON TROUGH
AROUND 10N115.5W. CONVECTION NEAR THIS LOW IS DESCRIBED IN THE
ITCZ/MONSOON TROUGH SECTION ABOVE. A BROAD SURFACE RIDGE EXTENDS
SOUTHEASTWARD FROM A 1033 MB HIGH NEAR 37N146W ACROSS 30N140W
THEN SOUTHWARD TO THE ITCZ. THIS FEATURE IS MAINTAINING MODERATE
TO FRESH NE WINDS AND SEAS OF 7 TO 10 FT NORTH OF THE ITCZ AND
WEST OF 125W. GENTLE TO MODERATE N TO NE TO E WINDS WITH 5 TO 7
FT IN MIXED NW AND S SWELL CONTINUE NORTH OF THE ITCZ EAST OF
125W. SOUTH OF THE ITCZ, GENTLE TO MODERATE S TO SE WINDS AND
SEAS AT 5 TO 8 FT IN MODERATE SOUTHERLY SWELL PREVAIL.
SHORT-TERM SOUTHERN CROSSING (along 23N)
TODAY - WSW 8-10, Seas SSW 1.1-3.4 ft @ 18sec
TONITE - SSW 3-4, Seas SSW --? ft @ 19sec
FRIDAY - WSW 10-13, Seas SSW 2.3-3.8 ft @ 16sec
FRIDAY NIGHT - SSW 3-4, Seas SSW --? ft @ 19sec
LONG-TERM SOUTHERN CROSSING
SATURDAY - W 8-10, Seas SSW 1.9-3.8 ft @ 16sec
SUNDAY - WNW 9-11, Seas SSW 1.9-4.5 ft @ 17sec
MONDAY - NW 7-9, Seas SSW 1.9-4.6 ft @ 17sec
TUESDAY - S 8-10, Seas N/A ?-? ft @ ?
WEDNESDAY - SE 7-9, Seas N/A ?-? ft @ ?