000
AXPZ20 KNHC 010400
TWDEP
Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Tue Apr 1 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...
A surface trough extends southwestward from near the Panama-
Colombia border across 08N95W to 01N110W. An ITCZ reaches
southwestward from 09N107W across 04N120W to beyond 02N140W.
Widely scattered moderate convection is noted from 03N to 10N
between 94W and 135W.
...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...
Broad high pressure anchored by a 1026 mb high just north
of the area 31N138W is the main feature driving the weather
pattern over these waters. The associated gradient is allowing
for fresh to strong northwest to north winds over the waters
west of Baja California, and for gentle to moderate north to
northeast winds over the waters elsewhere west of Mexico,
including near the Revillagigedo Islands. A recent scatterometer
satellite data pass captured some of these winds. A few ship
observations in the area reported similar winds as well. Seas
over these waters are 6 to 8 ft in decaying long-period NW
swell. Lower seas of 5 to 7 ft in mix SW and NW swell are over
the waters between the Gulf of Tehuantepec region and Acapulco.
Light to gentle winds are evident at the northern Gulf of
California, while gentle to moderate NW winds are noted for the
rest of the Gulf. Seas in the Gulf are 1 to 3 ft, except for
slightly higher seas of 2 to 4 ft in the southern section.
For the forecast, fresh to strong NW to N winds near the Baja
California coast will persist and expand westward through Wed
evening before diminishing to mainly moderate on Thu. Winds in
the northern and central Gulf of California are expected to
increase and reach fresh to strong Tue evening through Wed
afternoon, which could peak at near-gale force at the northern
Gulf late Tue night into early on Wed. A new set of NW swell
producing rough to very rough seas will propagate southward
through the waters off Baja California Tue night through late
Wed. Marine conditions improve afterward.
...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,
AND WITHIN 750 NM OF ECUADOR...
Marine conditions remain relatively quiet throughout this
part of the discussion area.
For the forecast, relatively quiet conditions will continue over
these waters for the next few days, with seas below 8 ft. Winds
pulsing to fresh speeds are expected in the Gulf of Papagayo
at night into the morning hours through Wed night, then to fresh
to strong speeds through late in the week, with seas remaining
below 8 ft.
...REMAINDER OF THE AREA....
A weakening cold front extends from near 30N125W to 29N129W, then
transitions to a trough to 27N140W. The front is defined on
satellite imagery as a narrow line of mostly broken to overcast
clouds with possible scattered showers. The gradient between the
high and relatively lower pressure near the ITCZ is sustaining
moderate to fresh NE to E trades and seas of 7 to 10 ft due to
the combination of long-period NW to N swell and wind generated
waves. Seas are less than 8 ft elsewhere north of the ITCZ and
trough, but to 8 ft across some areas south of the ITCZ and
trough to due to long-period NW to N swell mixing with a S swell
component.
For the forecast, the aforementioned seas of 7 to 10 ft will
subside some through Thu as they become confined to the far
western waters. Little change is expected elsewhere through Thu
over the open Pacific waters.
$$
Chan
