155
AXPZ20 KNHC 210926
TWDEP
TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC SAT MAR 21 2026
TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM
03.4S TO 30N, EAST OF 120W INCLUDING THE GULF OF CALIFORNIA, AND
FROM THE EQUATOR TO 30N, BETWEEN 120W AND 140W. THE FOLLOWING
INFORMATION IS BASED ON SATELLITE IMAGERY, WEATHER OBSERVATIONS,
RADAR, AND METEOROLOGICAL ANALYSIS.
BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
0800 UTC.
..SPECIAL FEATURES
GULF OF TEHUANTEPEC GALE WARNING:
THE PRESSURE GRADIENT BETWEEN HIGH PRESSURE ACROSS EASTERN
MEXICO AND THE EQUATORIAL TROUGH IS SUPPORTING GALE-FORCE N-NE
WINDS IN THE GULF OF TEHUANTEPEC. SEAS ARE 10-12 FT ACROSS THIS
REGION. THE GALE FORCE WINDS ARE FORECAST TO CONTINUE INTO EARLY
SAT BEFORE DIMINISHING.
PLEASE READ THE LATEST HIGH SEAS FORECAST ISSUED BY THE NATIONAL
HURRICANE CENTER AT WEBSITE -
HTTPS://WWW.NHC.NOAA.GOV/TEXT/MIAHSFEP2.SHTML FOR MORE
INFORMATION.
..INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
A SURFACE TROUGH EXTENDS FROM 07.5N82W TO 05N88W. THE ITCZ
EXTENDS FROM 05N88W TO 03N133W. SCATTERED MODERATE CONVECTION IS
NOTED FROM 03.5N TO 07N AND EAST OF 95.5W.
..OFFSHORE WATERS WITHIN 250 NM OF MEXICO
PLEASE SEE SPECIAL FEATURES ABOVE FOR INFORMATION ON A GALE
WARNING IN THE GULF OF TEHUANTEPEC.
ASIDE FROM THE GULF OF TEHUANTEPEC, A WEAK PRESSURE GRADIENT IS
GENERATING LIGHT TO GENTLE WINDS, EXCEPT LOCALLY MODERATE OFF
CABO SAN LUCAS. MODERATE SEAS PREVAIL OVER THE OPEN WATERS, WITH
SLIGHT SEAS IN THE GULF OF CALIFORNIA.
FOR THE FORECAST, ASIDE FROM THE GULF OF TEHUANTEPEC GALE
WARNING, MODERATE TO LOCALLY FRESH NW WINDS WILL DOMINATE
OFFSHORE BAJA CALIFORNIA, WITH LIGHT TO GENTLE WINDS ELSEWHERE.
MODERATE SEAS WILL GENERALLY PREVAIL, WITH SLIGHT SEAS IN THE
GULF OF CALIFORNIA. LONG PERIOD N SWELL WILL ARRIVE SUN OFFSHORE
BAJA CALIFORNIA NORTE, AND THIS MAY LEAD TO ROUGH SEAS THERE SUN
LATE NIGHT INTO EARLY NEXT WEEK.
....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,
AND WITHIN 750 NM OF ECUADOR...
MODERATE GAP WINDS ARE ONGOING IN THE GULF OF PAPAGAYO AND GULF
OF PANAMA, WITH LIGHT TO GENTLE WINDS ELSEWHERE. SEAS ARE 3 TO 5
FT, EXCEPT FOR 5 TO 7 FT SEAS WILL OFFSHORE GUATEMALA DUE TO
GALE-FORCE GAP WINDS N OF THE REGION IN THE GULF OF TEHUANTEPEC.
FOR THE FORECAST, LARGE N SWELL GENERATED BY THE GALE-FORCE GAP
WINDS IN THE GULF OF TEHUANTEPEC WILL IMPACT THE OFFSHORE WATERS
OF GUATEMALA INTO SAT. FRESH TO STRONG WINDS WILL PULSE NIGHTLY
IN THE GULF OF PAPAGAYO. MODERATE TO LOCALLY FRESH WINDS WILL
PULSE NIGHTLY IN THE GULF OF PANAMA. GENTLE BREEZES AND MODERATE
SEAS WILL PREVAIL ELSEWHERE.
..REMAINDER OF THE AREA
THE PRESSURE GRADIENT BETWEEN HIGH PRESSURE CENTERED N OF THE
AREA AND THE ITCZ IS LEADING TO GENTLE TO MODERATE TRADES FROM
THE EQUATOR TO 16.5N, WITH GENTLE TRADES TO THE S. DOMINATED BY
THE RIDGE, WATERS N OF 16.5N ARE EXPERIENCING LIGHT TO GENTLE
ANTICYCLONIC WINDS. SEAS THROUGH THE BASIN ARE MAINLY 4 TO 6 FT,
EXCEPT FOR SOME LOCALLY ROUGH SEAS N AND E OF 11N100W, WHERE
SWELL FROM GALES IN THE GULF OF TEHUANTEPEC ARE PROPAGATING.
FOR THE FORECAST, MODERATE OR WEAKER WINDS AND MODERATE SEAS
WILL GENERALLY PREVAIL ACROSS THE REGION INTO THE START OF NEXT
WEEK. N SWELL WILL BUILD JUST S OF 30N FROM OFF BAJA CALIFORNIA
NORTE SUN, LEADING TO ROUGH SEAS INTO MON.
KRV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page