373
AXPZ20 KNHC 211515
TWDEP
TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
1605 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
1500 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 GAP WINDS ARE FORECAST TO DIMINISH BELOW GALE-FORCE LATER
THIS MORNING, BUT CONTINUE AT STRONG LEVELS THROUGH TONIGHT.
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 08N82W TO 05N87W. THE ITCZ EXTENDS
FROM 05N88W TO 04N140W. SCATTERED MODERATE CONVECTION IS NOTED
FROM 05N TO 08N BETWEEN 118W AND 135W.
..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. 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. MODERATE TO LOCALLY FRESH SE WINDS
WILL PULSE SUN NIGHT IN THE GULF OF CALIFORNIA AS LOW PRESSURE
DEEPENS TO THE NORTH. OTHERWISE, LIGHT TO GENTLE WINDS WILL
DOMINATE THE BASIN. LONG PERIOD N SWELL WILL ARRIVE SUN OFFSHORE
BAJA CALIFORNIA NORTE, AND THIS WILL LIKELY LEAD TO ROUGH SEAS
THERE SUN LATE NIGHT INTO EARLY NEXT WEEK. ELSEWHERE, MODERATE
SEAS WILL GENERALLY PREVAIL, WITH SLIGHT SEAS IN THE GULF OF
CALIFORNIA.
....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,
AND WITHIN 750 NM OF ECUADOR...
FRESH 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 OFFSHORE GUATEMALA DUE TO GALE- FORCE
GAP WINDS N OF THE REGION IN THE GULF OF TEHUANTEPEC AS WELL AS
WHERE THE FRESH GAP WINDS ARE OCCURRING IN THE AFOREMENTIONED
GULFS.
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 THIS MORNING. STRONG WINDS WILL PULSE NIGHTLY IN THE
GULF OF PAPAGAYO THROUGH AT LEAST MON NIGHT. 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 17N, WITH GENTLE TRADES TO THE S. DOMINATED BY
THE RIDGE, WATERS N OF 17N ARE EXPERIENCING LIGHT TO GENTLE
ANTICYCLONIC WINDS. SEAS THROUGH THE BASIN ARE 4 TO 6 FT.
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 THROUGH SUN NIGHT.
KONARIK
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