338
AXPZ20 KNHC 300131
TWDEP
TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC WED APR 30 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
0130 UTC.
..INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
THE MONSOON TROUGH EXTENDS FROM 10N86W TO 07N102W TO 07N122W.
THE ITCZ CONTINUES FROM 07N122W TO BEYOND 06N140W. SCATTERED
MODERATE ISOLATED STRONG CONVECTION IS NOTED FROM 05N TO 10N
EAST OF 95W, AND FROM 02N TO 10N BETWEEN 120W AND 140W.
..OFFSHORE WATERS WITHIN 250 NM OF MEXICO
MODERATE TO FRESH WINDS PREVAIL WEST OF THE BAJA CALIFORNIA
PENINSULA, WITH MODERATE WINDS EXTENDING SOUTHWARD TO THE
REVILLAGIGEDO ISLANDS. LIGHT TO GENTLE WINDS ARE ELSEWHERE,
INCLUDING IN THE GULF OF CALIFORNIA. SEAS ARE IN THE 6-8 FT
RANGE WEST OF THE BAJA CALIFORNIA PENINSULA, AND 6-7 FT OVER THE
REMAINDER OF THE OPEN WATERS OFF MEXICO. SEAS ARE 3 FT OR LESS IN
THE GULF OF CALIFORNIA.
FOR THE FORECAST, A BROAD RIDGE EXTENDING SOUTHEASTWARD ACROSS
THE BAJA WATERS WILL WEAKEN SLIGHTLY ACROSS THE REGION THROUGH
THE REMAINDER OF THE WEEK, LEADING TO A GRADUAL DECREASE IN WINDS
AND SEAS ACROSS THE BAJA WATERS. W TO SW WINDS ARE EXPECTED
ACROSS THE GULF OF TEHUANTEPEC INTO THE UPCOMING WEEKEND.
MODERATE TO FRESH W TO SW GAP WINDS WILL DEVELOP ACROSS THE
NORTHERN GULF OF CALIFORNIA WED AND THU NIGHTS. A COLD FRONT WILL
MOVE INTO THE BAJA NORTE WATERS SAT NIGHT AND REACH THE CENTRAL
BAJA WATERS SUN, ACCOMPANIED BY A SIGNIFICANT INCREASE IN WINDS
AND SEAS.
...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,
AND WITHIN 750 NM OF ECUADOR...
MODERATE TO FRESH WINDS ARE IN THE GULF OF PAPAGAYO, WITH
MODERATE WINDS IN THE GULF OF PANAMA. GENTLE TO LOCALLY MODERATE
WINDS ARE ELSEWHERE. SEAS ARE IN THE 5-7 FT RANGE.
FOR THE FORECAST, MODERATE TO FRESH WINDS WILL PULSE AT NIGHT
ACROSS THE PAPAGAYO REGION THROUGH EARLY FRI, BEFORE WINDS
DIMINISH THROUGH THE UPCOMING WEEKEND. MODERATE NORTHERLY WINDS
ACROSS THE GULF OF PANAMA WILL DIMINISH SLIGHTLY WED THROUGH THU,
THEN BECOME LIGHT AND VARIABLE INTO THE WEEKEND.
..REMAINDER OF THE AREA.
A BROAD RIDGE DOMINATES THE REGIONAL PACIFIC WATERS N OF 10N
AND W OF 110W. THE PRESSURE GRADIENT BETWEEN THIS RIDGE AND
LOWER PRESSURE IN THE VICINITY OF THE ITCZ IS SUPPORTING FRESH TO
LOCALLY STRONG NE TRADE WINDS N OF THE ITCZ TO 20N AND W OF
130W. MODERATE TO FRESH WINDS ARE N OF THE ITCZ TO 20N BETWEEN
120W AND 130W. SEAS OVER THESE WATERS ARE IN THE 7-9 FT RANG.
MODERATE ANTICYCLONIC WINDS DOMINATE THE REMAINING WATERS N OF
THE ITCZ AND W OF 110W, WITH SEAS OF 6 TO 8 FT IN N TO NE SWELL.
S OF THE ITCZ/MONSOON TROUGH, LIGHT TO GENTLE WINDS AND SEAS OF
5-6 FT IN SUBSIDING S-SW SWELL PREVAIL.
FOR THE FORECAST, THE BROAD HIGH PRESSURE RIDGE CURRENTLY
DOMINATING THE REGION W OF 110W WILL REMAIN IN PLACE THROUGH
EARLY WED, THEN BEGIN TO WEAKEN AND SHIFT SE, AHEAD OF AN
APPROACHING FRONTAL SYSTEM. LITTLE CHANGE IN WINDS AND WAVE
HEIGHTS ARE EXPECTED N OF THE ITCZ THROUGH EARLY WED, BEFORE A
DECREASING TREND ENSUES FROM THE MIDDLE TO END OF THE WEEK. A NEW
COLD FRONT WILL ENTER THE NW WATERS FRI EVENING, AND MOVE E-SE
AND REACH FROM 30N121W TO 26N140W BY SAT EVENING. EXPECT FRESH TO
LOCALLY STRONG N TO NE WINDS AND SEAS BUILDING 8 TO 10 FT BEHIND
THE FRONT.
AL
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