979
AXPZ20 KNHC 120319
TWDEP
TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC SAT APR 12 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
0230 UTC.
..SPECIAL FEATURES
GULF OF TEHUANTEPEC GALE WARNING: GALE-FORCE NORTHERLY GAP WINDS
WILL GENERALLY CONTINUE INTO SAT ACROSS THE GULF OF TEHUANTEPEC,
THEN DIMINISH BRIEFLY SAT AFTERNOON, BEFORE RESUMING SAT EVENING
AS HIGH PRESSURE STRENGTHENS OVER EASTERN MEXICO SAT NIGHT AND
PROLONG GALES INTO SUN MORNING. SEAS WILL PEAK SAT MORNING AND
AGAIN SUN MORNING AT AROUND 14 FT. LATER ON SUN, HIGH PRESSURE N
OF THE AREA WILL MOVE EAST AND WEAKEN, AND MARINE CONDITIONS
WILL QUICKLY BEGIN TO IMPROVE.
PLEASE REFER TO THE THE LATEST HIGH SEAS FORECAST ISSUED BY THE
NATIONAL HURRICANE CENTER AT WEBSITE:
HTTPS://WWW.NHC.NOAA.GOV/TEXT/MIAHSFEP2.SHTML FOR MORE DETAILS.
..INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
A SURFACE TROUGH EXTENDS FROM 11.5N76W TO LOW PRES 1008 MB NEAR
07.5N79.5W TO 04N92W TO 04.5N101W. THE ITCZ EXTENDS FROM 04.5N102W
TO 05N109W TO 02N120W TO 00.5N140W. SCATTERED TO LOCALLY NUMEROUS
MODERATE TO STRONG CONVECTION IS NOTED FROM 00.5N TO 11N BETWEEN
82W AND 110W, AND FROM 01.5S TO 05S BETWEEN 87W AND 100W.
..OFFSHORE WATERS WITHIN 250 NM OF MEXICO
PLEASE SEE THE SPECIAL FEATURES SECTION FOR INFORMATION ON A GALE
WARNING IN EFFECT FOR THE GULF OF TEHUANTEPEC.
OTHERWISE, BROAD HIGH PRESSURE WELL W OF THE AREA IS PRODUCING A WEAK
PRESSURE GRADIENT ACROSS THE REGIONAL WATERS, LEADING TO GENTLE
TO LOCALLY MODERATE NW TO W WINDS OVER THE WATERS, ASIDE FROM
MODERATE NW TO N WINDS OFFSHORE BAJA CALIFORNIA NORTE. SEAS ARE
GENERALLY 5 TO 7 FT IN MERGING NW AND S SWELL OFFSHORE BAJA
CALIFORNIA, EXCEPT TO 8 FT WELL OFFSHORE BAJA NORTE, WHILE SW
SWELL DOMINATES THE REMAINING WATERS S OF 20N. IN THE GULF OF
CALIFORNIA, WINDS ARE GENERALLY VARIABLE AT 10 KT OR LESS, WITH SEAS
3 FT OR LESS.
FOR THE FORECAST, MODERATE TO LARGE NW SWELL WILL BUILD ACROSS
THE BAJA CALIFORNIA WATERS THIS WEEKEND, THEN SUBSIDE EARLY NEXT
WEEK. WINDS AREA THE AREA WATERS WILL REMAIN MODERATE OR LESS
THROUGH EARLY NEXT WEEK AS HIGH PRESSURE REMAINS WILL W AND NW OF
THE AREA. LOOKING AHEAD, GALE-FORCE GAP WINDS MAY BRIEFLY REDEVELOP
IN THE GULF OF TEHUNATEPEC TUE NIGHT INTO WED.
...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,
AND WITHIN 750 NM OF ECUADOR...
FRESH TO LOCALLY STRONG NE TO E WINDS ARE ACROSS THE PAPAGAYO
REGION, WHERE SEAS ARE 6 TO 7 FT. FURTHER OFFSHORE, FRESH NE TO
E WINDS RESUME WEST OF 89W, WHERE SEAS ARE 8 TO 9 FT. 1008 MB
LOW PRESSURE IS MOVING NORTHWARD INTO THE GULF OF PANAMA, AND
PRODUCING MODERATE TO LOCALLY FRESH N TO NE WINDS THERE. WINDS
ARE LIGHT TO GENTLE ELSEWHERE. SEAS ARE 5 TO 8 FT, IN MODERATE
S TO SW SWELL, EXCEPT 8 TO 10 FT BETWEEN THE GALAPAGOS ISLANDS
AND ECUADOR. SCATTERED MODERATE TO STRONG SHOWERS AND
THUNDERSTORMS CONVECTION PREVAILS ACROSS THE WATERS NORTH OF THE
EQUATOR TO 10N, AND EAST OF 92W TO THE COASTS OF COSTA RICA AND
WESTERN PANAMA.
FOR THE FORECAST, HIGH PRESSURE EXTENDING SOUTHWARD ACROSS THE
WESTERN CARIBBEAN WILL PREVAIL THROUGH MON NIGHT, LEADING TO
PULSING FRESH TO STRONG NE TO E GAP WINDS, AND LOCALLY ROUGH
SEAS, ACROSS THE PAPAGAYO REGION. LOCALLY FRESH WINDS WILL PULSE
DURING THIS TIME IN THE GULF OF PANAMA. LARGE N SWELL FROM GULF
OF TEHUANTEPEC GALES WILL PROPAGATE INTO THE WATERS OFFSHORE
GUATEMALA THROUGH THE WEEKEND. MODERATE SW SWELL IMPACTING THE
REGIONAL WATERS WILL SUBSIDE THROUGH THE WEEKEND.
..REMAINDER OF THE AREA.
A WEAK COLD FRONT IS STALLING AND WEAKENING FROM AROUND 30N133W
TO 27N140W. NORTH OF THE FRONT, FRESH TO LOCALLY STRONG NE WINDS
AND SEAS OF 8 TO 11 FT IN NW SWELL PREVAIL. SOME MODERATE TO
LOCALLY FRESH NE TRADES ARE FOUND N OF THE ITCZ EXTENDING N TO
AROUND 20N, W OF 120W. OTHERWISE, WINDS ARE MODERATE OR WEAKER.
E OF 115W, SEAS ARE 8 TO 10 FT IN MERGING SW AND NW SWELL, AND 5
TO 7 FT ELSEWHERE IN THE WATERS.
FOR THE FORECAST, THE CROSS-EQUATORIAL SWELL OVER THE WATERS
SOUTH OF 20N WILL GRADUALLY SUBSIDE FROM WEST TO EAST THROUGH
SAT. GULF OF TEHUNATEPEC NORTHERLY GALES WILL SEND N TO NE SWELL
WELL SOUTHWEST OF THE SOURCE REGION TOWARD THE CENTRAL WATERS
MIXING WITH THE AFOREMENTIONED SW SWELL THROUGH THE WEEKEND. THE
COLD FRONT IN THE FAR NW WATERS WILL MEANDER THROUGH THE WEEKEND
BEFORE DISSIPATING, PRODUCING FRESH TO LOCALLY STRONG NE WINDS
AND LARGE NW SWELL BEHIND IT. THAT SWELL WILL INDUCE WAVE HEIGHTS
TO 7 TO 10 FT, MAINLY NORTH OF 24N OR SO THROUGH THE WEEKEND.
WINDS WILL FRESHEN WEST OF 130W THROUGH THE WEEKEND AS HIGH
PRESSURE BUILDS ACROSS THE REGION IN THE WAKE OF THE DISSIPATING
FRONT.
STRIPLING
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