684  
AXPZ20 KNHC 052048  
TWDEP  
 
TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
2205 UTC MON JAN 5 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH  
2000 UTC.  
   
..INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
 
 
THE MONSOON TROUGH EXTENDS FROM 10.5N74W TO 04.5N78.5W TO 05N96W.  
THE ITCZ CONTINUES FROM 05N96W TO 09N121W TO BEYOND 06N140W.  
SCATTERED MODERATE CONVECTION IS NOTED FROM 02.5N TO 05.5N EAST  
OF 82.5W.  
   
..OFFSHORE WATERS WITHIN 250 NM OF MEXICO
 
 
MIDDAY SATELLITE SCATTEROMETER DATA SHOWED GAP WINDS ACROSS THE  
GULF OF TEHUANTEPEC CONTINUING TO SLOWLY DIMINISH TO AROUND 20 KT  
WITHIN 60 NM OF THE COAST, WITH FRESH N WINDS THEN EXTENDING  
OFFSHORE TO NEAR 13N. SEAS THERE HAVE SUBSIDED TO 5 TO 6 FT.  
THIS GAP WIND EVENT IS BEING FORCED BY WEAKENING HIGH PRESSURE  
ACROSS THE GULF OF AMERICA. FARTHER NORTH, HIGH PRESSURE WELL NW  
OF THE AREA EXTENDS A WEAK RIDGE FROM 130W EASTWARD ALONG ABOUT  
26N INTO BAJA CALIFORNIA SUR, AND IS PRODUCING MODERATE NORTHERLY  
WINDS ACROSS THE BAJA WATERS SOUTH OF PUNTA EUGENIA, BECOMING  
FRESH NE WINDS INTO THE REVILLAGIGEDO ISLANDS. SEAS ACROSS THE  
BAJA WATERS ARE BEING DOMINATED BY NW SWELL MOVING INTO THE  
REGIONAL WATERS, PRODUCING SEAS OF 7 TO 9 FT. ELSEWHERE, A  
DISSIPATING FRONTAL TROUGH IS MOVING INTO THE OUTER BAJA  
OFFSHORE WATERS, EXTENDING FROM 30N117W TO 26N123W. MAINLY GENTLE  
WINDS FOLLOWING THIS BOUNDARY. ACROSS THE REMAINDER OF THE  
MEXICAN OFFSHORE WATERS, LIGHT TO GENTLE WINDS AND MODERATE SEAS  
PREVAIL, EXCEPT FOR THE GULF OF CALIFORNIA WHERE LIGHT TO GENTLE  
NORTHERLY WINDS AND SLIGHT SEAS ARE PRESENT.  
 
FOR THE FORECAST, FRESH NORTHERLY GAP WINDS OVER THE GULF OF  
TEHUANTEPEC WILL DIMINISH THROUGH THIS EVENING AND THEN PULSE TO  
FRESH TONIGHT. WINDS THERE WILL THEN BECOME VARIABLE TUE, THEN  
PULSE FRESH TO STRONG TUE AND WED NIGHTS. NW SWELL ACROSS THE  
BAJA WATERS IS PEAKING EARLY THIS AFTERNOON AND WILL SLOWLY  
SUBSIDE THROUGH WED AS IT PROPAGATES INTO THE REMAINING MEXICAN  
OFFSHORE WATERS TO THE SOUTHEAST. WEAK HIGH PRESSURE WILL PREVAIL  
ACROSS THE BAJA OFFSHORE WATERS TONIGHT THROUGH EARLY WED, AHEAD  
OF THE NEXT COLD FRONT EXPECTED TO MOVE INTO THE BAJA NORTE  
WATERS WED MORNING. THIS NEXT FRONT WILL MOVE THROUGH ALL OF THE  
BAJA PENINSULA THROUGH THU MORNING FOLLOWED BY FRESH WINDS AND  
BUILDING SEAS IN NW SWELL. LOOKING AHEAD, LARGE NW SWELL WILL  
IMPACT THE WATERS OFF BAJA CALIFORNIA THU INTO THE UPCOMING  
WEEKEND, WITH SEAS POTENTIALLY REACHING 12 FT AND HIGHER THU  
NIGHT THROUGH FRI NIGHT ACROSS THE OUTER BAJA NORTE WATERS.  
 
...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,  
AND WITHIN 750 NM OF ECUADOR...  
 
HIGH PRESSURE ACROSS THE GULF OF AMERICA EXTENDING INTO THE NW  
CARIBBEAN IS SUPPORTING FRESH NE GAP WINDS ACROSS THE PAPAGAYO  
REGION, AND MODERATE TO LOCALLY FRESH NORTHERLY GAP WINDS ACROSS  
THE GULF OF PANAMA. SEAS DOWNWIND OF PAPAGAYO ARE 5 TO 7 FT AND  
4 TO 6 FT DOWNWIND OF THE GULF OF PANAMA. ELSEWHERE, LIGHT TO  
GENTLE WINDS PREVAIL N OF 05N, WITH MODERATE S TO SW WINDS  
OCCURRING S OF 05N. SLIGHT TO MODERATE SEAS IN SW SWELL CONTINUE  
ACROSS THESE WATERS.  
 
FOR THE FORECAST, HIGH PRESSURE NORTH OF THE REGION WILL SUPPORT  
PULSING FRESH TO STRONG WINDS ACROSS THE PAPAGAYO REGION THROUGH  
TONIGHT, WITH MODERATE TO FRESH PULSES THEREAFTER THROUGH FRI.  
PULSING NORTHERLY WINDS ARE EXPECTED ACROSS THE GULF OF PANAMA  
DURING THE NEXT SEVERAL DAYS. GENTLE TO MODERATE BREEZES AND  
SLIGHT TO MODERATE SEAS WILL PERSIST ELSEWHERE.  
   
..REMAINDER OF THE AREA
 
 
A DISSIPATING FRONTAL TROUGH REACHES FROM 30N117W TO 26N123W,  
MOVING EASTWARD AT 10 KT. GENTLE NW TO N BREEZES FOLLOW THE  
FRONT AS A WEAK RIDGE BUILDS INTO THE REGION JUST SOUTH OF THIS  
BOUNDARY. LARGE NW SWELL WITH WAVE HEIGHTS OF 8 TO 11 FT AT  
PERIODS OF 11 TO 14 SECONDS COVERS THE AREA ROUGHLY NORTH OF 07N  
AND WEST OF 115W. RECENT SATELLITE SCATTEROMETER DATA INDICATES  
MODERATE TO FRESH TRADE WINDS FROM 08N TO 22N WEST OF 120W.  
GENTLE TO MODERATE BREEZES ARE NOTED ELSEWHERE WITH 5 TO 7 FT  
WAVE HEIGHTS IN MIXED NW AND SW SWELL.  
 
FOR THE FORECAST, THE FRONTAL TROUGH WILL DISSIPATE THIS EVENING  
AS IT MOVES NEAR THE BAJA CALIFORNIA NORTE COAST. A SECOND  
FRONTAL TROUGH MOVING INTO THE WATERS NORTH OF 28N AND WEST OF  
130W LATE TODAY WILL CONTINUE SOUTHEASTWARD AND REACH FROM NEAR  
30N120W TO 22N130W TUE NIGHT, THEN INTO THE BAJA CALIFORNIA  
WATERS WED THROUGH THU AS IT DISSIPATES. HIGH PRESSURE BUILDING  
BEHIND THE FRONT WILL SUPPORT FRESH TRADE WINDS AND ROUGH SEAS  
FROM 10N TO 20N WEST OF 125W. THE LARGE SWELL CURRENTLY ACROSS  
THE REGIONAL WATERS WILL SUBSIDE THROUGH MID WEEK, JUST AS NEW  
NW SWELL MOVES INTO THE WATERS NORTH OF 20N THROUGH THE LATTER  
PART OF THE WEEK. GENTLE TO MODERATE BREEZES AND MODERATE SEAS  
WILL PERSIST ELSEWHERE THROUGH MID WEEK.  
 

 
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