383
AXPZ20 KNHC 202057
TWDEP
TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC SUN APR 20 2025
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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
2055 UTC.
..INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
THE MONSOON TROUGH EXTENDS FROM SOUTHERN COSTA RICA NEAR 09N84W
TO 07N100W. THE ITCZ STRETCHES FROM 07N100W TO 06N115W AND
TO 06N130W. A SECOND ITCZ EXTENDS FROM 02S122W TO BEYOND 02S140W.
SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS OBSERVED
FROM 02N TO 10N AND EAST OF 99W. SCATTERED MODERATE CONVECTION
IS PRESENT FROM 03N TO 09N AND BETWEEN 102W AND 129W.
..OFFSHORE WATERS WITHIN 250 NM OF MEXICO
THE SUBTROPICAL RIDGE OVER THE NORTH PACIFIC EXTENDS
SOUTHEASTWARD TO THE REVILLAGIGEDO ISLANDS. THE WEAK PRESSURE
GRADIENT RESULT IN GENTLE TO MODERATE NORTHERLY WINDS ACROSS THE
OFFSHORE WATERS OF BAJA CALIFORNIA. SEAS IN THESE WATERS ARE 4-6
FT. MAINLY MODERATE NORTHERLY WINDS AND SEAS OF 3-5 FT ARE FOUND
IN THE CENTRAL AND SOUTHERN GULF OF CALIFORNIA. ELSEWHERE,
MODERATE OR WEAKER WINDS AND SLIGHT TO MODERATE SEAS ARE
PREVALENT, INCLUDING IN THE GULF OF TEHUANTEPEC.
FOR THE FORECAST, FRESH TO OCCASIONALLY STRONG NW WINDS WILL
PULSE OFFSHORE OF SOUTHWESTERN MEXICO NEAR JALISCO EACH NIGHT AND
MORNING THROUGH AT LEAST TUE. FARTHER NORTH, MODERATE TO LOCALLY
FRESH NW WINDS ARE EXPECTED TO PULSE IN THE GULF OF CALIFORNIA
AND IN THE BAYS OFFSHORE OF BAJA CALIFORNIA THROUGH TONIGHT.
OTHERWISE, PREVAILING HIGH PRESSURE OVER THE EASTERN PACIFIC WILL
SUPPORT GENTLE TO MODERATE NW WINDS AND SLIGHT TO MODERATE SEAS
OVER THE REMAINDER OF THE WATERS THROUGH THE MIDDLE OF THIS WEEK.
...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,
AND WITHIN 750 NM OF ECUADOR...
SCATTERED SHOWERS ARE AFFECTING THE OFFSHORE WATERS OF COLOMBIA,
PANAMA AND COSTA RICA. GUSTY WINDS AND SUDDENLY HIGHER SEAS ARE
POSSIBLE NEAR THE STRONGEST CONVECTION. ELSEWHERE, A 1028 MB HIGH
PRESSURE SYSTEM LOCATED WEST OF BERMUDA FORCES FRESH TO STRONG
EASTERLY TRADE WINDS ACROSS THE GULF OF PAPAGAYO REGION,
SPREADING DOWNSTREAM TO 89W. SEAS IN THESE WATERS ARE 5-8 FT.
GENTLE TO MODERATE NORTHERLY WINDS ARE FOUND IN THE GULF OF
PANAMA, ALONG WITH SEAS OF 3-5 FT. IN THE REMAINDER OF THE BASIN,
MODERATE OR WEAKER WINDS AND MODERATE SEAS ARE PREVALENT.
FOR THE FORECAST, FRESH TO STRONG E WINDS AND LOCALLY ROUGH SEAS
ARE EXPECTED TO PULSE IN THE GULF OF PAPAGAYO THROUGH TUE
MORNING, AND OCCASIONAL MODERATE TO FRESH WINDS ARE EXPECTED IN
THE REGION THEREAFTER. MODERATE TO LOCALLY FRESH WINDS WILL
EXTEND THROUGH THE FAR OFFSHORE WATERS OF EL SALVADOR AND
GUATEMALA EARLY THIS WEEK. LOOKING AHEAD, A LONG- PERIOD
SOUTHERN HEMISPHERE SWELL WILL SUPPORT ROUGH SEAS IN THE WATERS
OFFSHORE OF ECUADOR BY LATE WEEK.
..REMAINDER OF THE AREA.
A 1040 MB HIGH PRESSURE SYSTEM LOCATED WELL NORTH OF THE
TROPICAL EASTERN PACIFIC CONTINUES TO INFLUENCE THE BASIN,
SUPPORTING MODERATE TO FRESH EASTERLY TRADE WINDS FROM THE ITCZ
TO 20N AND WEST OF 120W. THIS WAS CONFIRMED IN A RECENT
SCATTEROMETER SATELLITE PASS. SEAS IN THESE WATERS ARE 6-9 FT.
MODERATE OR WEAKER WINDS AND MODERATE SEAS ARE PREVALENT
ELSEWHERE.
FOR THE FORECAST, MODERATE TO FRESH WINDS WILL CONTINUE THROUGH
THE FORECAST PERIOD FROM 05N TO 20N, WEST OF 115W, AS RIDGING
CONTINUES TO DOMINATE THE EASTERN PACIFIC. SHORT-PERIOD, WIND-
GENERATED E SWELL WILL PROMOTE ROUGH SEAS IN THIS REGION. FARTHER
NORTH, GENTLE TO MODERATE N TO E WINDS AND MODERATE SEAS WILL
PREVAIL. N SWELL TO 8 FT WILL APPROACH THE NORTHERN WATERS
TONIGHT THROUGH MIDWEEK BEFORE RETREATING. LOOKING AHEAD, A LONG-
PERIOD SOUTHERN HEMISPHERE SWELL WILL PROMOTE ROUGH SEAS SOUTH
OF 05N LATE THIS WEEK.
DELGADO
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