670
AXPZ20 KNHC 190244
TWDEP
TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC FRI DEC 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
0300 UTC.
..INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
THE MONSOON TROUGH EXTENDS FROM FROM NEAR 09N83W TO 09N111W. THE
ITCZ CONTINUES FROM 09N111W TO BEYOND 07N140W. SCATTERED
MODERATE CONVECTION IS NOTED ALONG THE ENTIRETY OF THE MONSOON
TROUGH FROM 05N TO 13N.
..OFFSHORE WATERS WITHIN 250 NM OF MEXICO
A 1025 MB HIGH CENTER CENTERED AT 31N130W WITH LOWER PRESSURE
THE SW UNITED STATES IS PRODUCING MODERATE TO LOCALLY FRESH NW
WINDS WEST OF BAJA CALIFORNIA NORTE. ELSEWHERE, WINDS ARE GENTLE
OR WEAKER. SEAS ARE 5 TO 7 FT WEST OF BAJA CALIFORNIA NORTE, 1 TO
3 FT IN THE GULF OF CALIFORNIA, AND 3-5 FT ELSEWHERE. NO
SIGNIFICANT CONVECTION IS OCCURRING.
FOR THE FORECAST, WITH A WEAK PRESSURE GRADIENT PREVAILING, WINDS
ACROSS FORECAST WATERS SHOULD REMAIN MODERATE OR WEAKER THROUGH
FRI MORNING. BY FRI AFTERNOON, TEHUANTEPECER GAP WINDS WILL
BEGIN WITH STRONG N TO NE WINDS. THE WINDS WILL DIMISH SOME SAT
INTO SUN, BUT BY SUN NIGHT THEY SHOULD REDEVELOP TO STRONG OVER
THE GULF OF TEHUANTEPEC THROUGH MID-NEXT WEEK. ELSEWHERE, WINDS
AND SEAS SHOULD REMAIN QUIESCENT FOR THE NEXT SEVERAL DAYS.
...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,
AND WITHIN 750 NM OF ECUADOR...
WINDS ACROSS FORECAST WATERS ARE MODERATE OR WEAKER WITH SEAS 3
TO 6 FT. SCATTERED MODERATE CONVECTION IS OCCURRING WITHIN 200
NM OF THE COASTS OF EL SALVADOR, COSTA RICA, AND PANAMA.
FOR THE FORECAST, A LIGHT PRESSURE GRADIENT WILL CONTINUE TO
ONLY FORCE MODERATE OR WEAKER WINDS ACROSS FORECAST WATERS
THROUGH FRI. BUILDING HIGH PRESSURE OVER CENTRAL AMERICA WILL
DRIVE FRESH TO LOCALLY STRONG NE WINDS MAINLY DURING LATE
NIGHT/EARLY MORNING HOURS ACROSS THE GULF OF PAPAGAYO REGION FROM
FRI EVENING THROUGH MID NEXT WEEK. ELSEWHERE, WINDS AND SEAS
WILL BE QUIESCENT.
..REMAINDER OF THE AREA
A 1025 MB HIGH CENTERED AT 31N130W NORTH OF OUR WATERS ALONG
WITH LOWER PRESSURE OVER THE ITCZ IS FORCING MODERATE TO LOCALLY
FRESH NE TRADES NORTH OF THE ITCZ. SOUTH OF THE ITCZ/MONSOON
TROUGH, THE SE TRADES AND SW MONSOONAL WINDS ARE GENTLE TO
MODERATE. SEAS ARE 4-7 FT.
FOR THE FORECAST, LITTLE CHANGE IS EXPECTED THROUGH SUN. STARTING
SUN NIGHT, A SURFACE TROUGH IS EXPECTED TO FORM ALONG THE ITCZ
NEAR 120W ENHANCING DEEP CONVECTION AND STRENGTHENING WINDS FOR
A COUPLE OF DAYS. AT THE SAME TIME, A COLD FRONT IS ANTICIPATED
TO REACH OUR NW CORNER AT 30N140W AND BRING WITH IT MODERATE TO
FRESH SW AHEAD OF THE FRONT AND MODERATE TO FRESH N WINDS BEHIND
THE FRONT ON MON AND TUE. A LARGE NW SWELL OF 8-12 FT SHOULD ALSO
REACH OUR NW WATERS BEGINNING MON.
KONARIK
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