606  
AXPZ20 KNHC 191505  
TWDEP  
 
TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
1605 UTC SAT APR 19 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH  
1500 UTC.  
   
..INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
 
 
A SURFACE TROUGH EXTENDS FROM WESTERN PANAMA NEAR 08N83W TO 06N94W.  
THE ITCZ STRETCHES FROM 06N94W TO 05N120W AND BEYOND 04N140W. A  
SECOND ITCZ EXTENDS FROM 02S116W TO 07S140W. SCATTERED MODERATE  
TO ISOLATED STRONG CONVECTION IS OCCURRING SOUTH OF 10N AND EAST  
OF 90W. SCATTERED MODERATE CONVECTION IS NOTED FROM 03N TO 10N  
BETWEEN 95W AND 117W.  
   
..OFFSHORE WATERS WITHIN 250 NM OF MEXICO
 
 
THE PRESSURE GRADIENT BETWEEN A ROBUST 1041 MB SUBTROPICAL RIDGE  
POSITIONED OVER THE NORTH PACIFIC AND LOWER PRESSURES IN THE SW  
UNITED STATES AND MEXICO SUPPORT MODERATE TO FRESH NORTHERLY  
WINDS ACROSS THE OFFSHORE WATERS OF BAJA CALIFORNIA. SEAS IN  
THESE WATERS ARE 5-7 FT. MODERATE TO LOCALLY FRESH NW WINDS AND  
SEAS OF 2-4 FT ARE NOTED IN THE GULF OF CALIFORNIA. ELSEWHERE,  
GENTLE TO MODERATE W-NW WINDS AND SLIGHT TO MODERATE SEAS ARE  
PRESENT IN THE REMAINDER OF THE MEXICAN OFFSHORE WATERS,  
INCLUDING THE GULF OF TEHUANTEPEC.  
 
FOR THE FORECAST, LOCALIZED FRESH W WINDS WILL PULSE IN THE  
NORTHERN GULF OF CALIFORNIA EARLY THIS MORNING. ELSEWHERE,  
PULSING FRESH TO STRONG NW WINDS ARE EXPECTED OFFSHORE OF  
SOUTHWESTERN MEXICO NEAR JALISCO THROUGH GUERRERO INTO EARLY NEXT  
WEEK, WHILE OCCASIONAL FRESH NW WINDS WILL OCCUR THROUGH THE  
SEBASTIAN VIZCAINO BAY AND MAGDALENA BAY AND SURROUNDING AREAS  
THIS WEEKEND. OTHERWISE, GENTLE TO MODERATE NW WINDS AND SLIGHT  
TO MODERATE SEAS WILL PREVAIL OVER THE REMAINDER OF THE WATERS  
THROUGH THE MIDDLE OF NEXT WEEK.  
 
...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,  
AND WITHIN 750 NM OF ECUADOR...  
 
A WEAK SURFACE TROUGH CONTINUES TO GENERATE STRONG SHOWERS AND  
ISOLATED THUNDERSTORMS OFF THE PACIFIC COAST OF COLOMBIA.  
MEANWHILE, A STRONG SUBTROPICAL RIDGE NORTH OF THE AREA  
CONTINUES TO SUPPORT FRESH TO NEAR GALE-FORCE EASTERLY TRADE  
WINDS ACROSS THE GULF OF PAPAGAYO REGION, EXTENDING WESTWARD TO  
91W. SEAS IN THESE WATERS ARE 6-9 FT. MODERATE TO FRESH  
NORTHERLY WINDS AND MODERATE SEAS ARE PRESENT IN THE GULF OF  
PANAMA, EXTENDING SOUTHWARD TO 04N. ELSEWHERE, MODERATE OR  
WEAKER WINDS AND MODERATE SEAS ARE PREVALENT.  
 
FOR THE FORECAST, STRONG TO NEAR-GALE FORCE E WINDS WILL PULSE  
IN THE GULF OF PAPAGAYO THIS MORNING, AND LOCALLY ROUGH SEAS WILL  
ACCOMPANY THESE WINDS. FRESH TO STRONG E WINDS ARE THEN EXPECTED  
EACH NIGHT AND MORNING IN THIS REGION THROUGH THE MIDDLE OF NEXT  
WEEK. MODERATE TO FRESH WINDS WILL LIKELY EXTEND THROUGH THE  
WATERS WELL OFFSHORE OF EL SALVADOR AND GUATEMALA THIS WEEKEND.  
ELSEWHERE, FRESH TO STRONG N WINDS WILL OCCUR THIS MORNING IN THE  
GULF OF PANAMA, WITH WINDS OCCASIONALLY PULSING TO MODERATE  
SPEEDS THEREAFTER. LOOKING AHEAD, A NEW LONG-PERIOD S TO SW SWELL  
WILL PROPAGATE THROUGH THE REGIONAL WATERS EARLY NEXT WEEK.  
   
..REMAINDER OF THE AREA.
 
 
A BROAD SUBTROPICAL RIDGE OVER THE NORTH PACIFIC EXTENDS INTO  
THE WATERS OF THE TROPICAL EASTERN PACIFIC. MODERATE TO FRESH  
EASTERLY TRADE WINDS AND SEAS OF 6-9 FT ARE NOTED FROM THE ITCZ  
TO 20N AND WEST OF 110. MODERATE OR WEAKER WINDS AND MODERATE  
SEAS ARE PREVALENT ELSEWHERE.  
 
FOR THE FORECAST, MODERATE N TO E WINDS WILL OCCUR NORTH OF THE  
ITCZ THROUGH THE MIDDLE OF NEXT WEEK AS RIDGING PREVAILS OVER THE  
EASTERN PACIFIC WATERS. PULSING FRESH NE WINDS ARE EXPECTED  
THROUGH SUN BETWEEN 05N AND 20N, WEST OF 115W. A SHORT-PERIOD,  
WIND-GENERATED E SWELL WILL PROMOTE ROUGH SEAS IN THIS REGION  
THROUGH EARLY NEXT WEEK. LOOKING AHEAD, A LONG-PERIOD SOUTHERN  
HEMISPHERE SWELL WILL PROGRESS THROUGH THE SOUTHERN WATERS LATE  
NEXT WEEK.  
 

 
DELGADO  
 
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