Sea of Cortez Southern Crossing Forecast
December 5, 2025, 3:01 am (UTC: -05:00)
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 TROUGH EXTENDS FROM BAJA CALIFORNIA NEAR 25N113W THROUGH
16N117W PER RECENT ASCAT SCATTEROMETER DATA. SCATTERED MODERATE
CONVECTION IS NOTED WITHIN 360 NM E OF THE TROUGH. FRESH NW
WINDS ARE OFFSHORE MAZATLAN, MEXICO DUE TO A LOCALLY TIGHT
PRESSURE GRADIENT. OTHERWISE, MAINLY GENTLE TO LOCALLY MODERATE
WINDS PREVAIL. MODERATE SEAS PREVAIL ACROSS THE MEXICAN OFFSHORE
WATERS AND THE NORTHERN GULF OF CALIFORNIA, EXCEPT SLIGHT NEAR
THE GULF OF TEHUANTEPEC AND ACROSS THE SOUTHERN HALF OF THE GULF
OF CALIFORNIA.
FOR THE FORECAST, A SURFACE TROUGH FROM NEAR BAJA CALIFORNIA SUR
TO W OF THE REVILLAGIGEDO ISLANDS WILL KEEP SCATTERED
THUNDERSTORMS NEAR THE ISLANDS THROUGH AT LEAST TODAY. MODERATE
TO FRESH WINDS WILL PERSISTS OFFSHORE MAZATLAN THROUGH TONIGHT.
HIGH PRESSURE BUILDING SOUTHWARD TOWARD THE REGION WILL LEAD TO
INCREASING WINDS FOR THE GULF OF CALIFORNIA AND THE GULF OF
TEHUNATEPEC FOR THE START OF NEXT WEEK. MON AND TUE, STRONG GAP
WINDS ARE FORECAST IN THE TEHUANTEPEC REGION, POSSIBLY TO NEAR
GALE-FORCE. MAINLY SLIGHT TO MODERATE SEAS WILL PREVAIL ACROSS
THE WATERS, EXCEPT BUILDING TO ROUGH IN THE GULF OF TEHUANTEPEC
EARLY NEXT WEEK.
A DEEP PLUME OF MOISTURE EXTENDS FROM THE ITCZ IN THE W-CENTRAL
WATERS NORTHEASTWARD TO BAJA CALIFORNIA SUR. AT THE SURFACE,
MODERATE TO LOCALLY FRESH WINDS AND SEAS, DOMINATE N OF THE ITCZ
AND W OF 125W. ELSEWHERE, GENTLE TO LOCALLY MODERATE WINDS AND
MODERATE SEAS PREVAIL.
SHORT-TERM SOUTHERN CROSSING (along 23N)
TODAY - N 9-11, Seas SSW 3.3-4 ft @ 16sec
TONITE - ENE 6-7, Seas SSW 0.9-2.6 ft @ 14sec
SATURDAY - NNW 10-12, Seas SSW 1.7-3 ft @ 13sec
SATURDAY NIGHT - NNW 10-13, Seas SSW 2.3-3.4 ft @ 13sec
LONG-TERM SOUTHERN CROSSING
SUNDAY - NNW 14-17, Seas SSW 2.9-3.8 ft @ 12sec
MONDAY - NNW 12-15, Seas SSW 3.6-4.3 ft @ 12sec
TUESDAY - NW 9-11, Seas S 3.1-3.9 ft @ 16sec
WEDNESDAY - NNW 10-12, Seas N/A ?-? ft @ ?
THURSDAY - NNW 10-12, Seas N/A ?-? ft @ ?