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Eastern North Pacific Tropical Weather Discussion


000
AXPZ20 KNHC 271541
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 UTC Sun Apr 27 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...

The monsoon trough extends from 11N75W to 07N91W to 07.5N114W to 
05N121W. The ITCZ continues from 05N121W to beyond 05N140W. 
Scattered moderate convection is noted from 03N to 09N east of
88W. Scattered moderate to strong convection is noted from 02.5N
to 09N between 90W and 138W.

...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Moderate to fresh NW winds prevail across the waters off of Baja
California Norte this morning, with fresh northerly winds across
the remaining Baja waters from Punta Eugenia southward to near 
20N, becoming moderate northerly winds from 20N southward through
the Revillagigedo Islands. Seas across these waters are 5 to 7 
ft in merging NW and S swell, except to 8 ft across the Baja Sur 
waters where winds are strongest. Light to gentle winds are 
elsewhere over the open waters off Mexico, except for fresh to
strong N to NE gap winds spilling out of the central Gulf of
Tehuantepec. Seas are 5 to 7 ft in S swell across these waters
except to 8 ft in Tehuantepec. Moderate to locally fresh N to NE
winds are occurring across the northern Gulf of California,
behind a weak and benign cold front moving through the area.
Moderate to locally fresh NW to N winds are elsewhere across
central and most of southern portions of the Gulf. Seas are
generally 3 to 5 ft. 

For the forecast, high pressure will build into the Baja waters
today, behind a dissipating cold front moving across NW Mexico.
This will support moderate to fresh NW winds across the Baja 
waters through late Mon, with isolated areas of strong winds near
the coast during the late afternoon and evening hours. N to NE
gap winds across the Gulf of Tehuantepec will pulse fresh to 
strong at night through the morning hours through Mon, then
weaken though mid week.

...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, 
AND WITHIN 750 NM OF ECUADOR...

Fresh gap winds continue across the Papagayo region this morning,
extending offshore to 88W. Light to gentle winds are elsewhere
north of the monsoon trough. Moderate northerly winds prevail
across the Gulf of Panama to 06N. Gentle to moderate southerly
winds are occurring between the Galapagos Islands and Ecuador. 
Morning satellite altimeter data shows S-SW swell continuing 
across the regional waters, producing seas of 6-8 ft across the 
area waters, and 7-9 ft from the Galapagos Islands eastward and 
northeastward to Ecuador and Colombia. Scattered showers and
moderate thunderstorms are seen across the waters S of 10N and E
of 90W this morning.

For the forecast, moderate to fresh E winds will pulse across 
the Papagayo region each night and morning into the middle of 
next week. Moderate northerly winds across the Gulf of Panama 
will pulse to fresh nightly through early Mon then diminish 
slightly next week. Cross equatorial S-SW swell will peak over 
the regional waters today.

...REMAINDER OF THE AREA....

High pressure dominates the waters N of 10N and W of 110W. The 
pressure gradient between this area of high pressure and lower 
pressure in the vicinity of the ITCZ is supporting moderate to 
fresh NE trade winds N of the ITCZ to near 21N W of 118W. Seas 
over these waters are in the 6-9 ft range in merging S and N 
swell. A weak cold front extends from Baja California Norte to 
26.5N120W. Gentle to moderate winds, and seas of 5-8 ft prevail 
elsewhere N of the ITCZ and W of 110W. S of the ITCZ/monsoon 
trough, light to gentle winds and seas of 7-9 ft in S-SW swell 
prevail. 

For the forecast, high pressure will dominate the region W of 
110W through Tue, with little change in winds and seas expected N
of the ITCZ. Cross equatorial S swell propagating across the 
area waters will gradually subside today. High pressure will 
weaken across the region Tue night through Thu, leading to a 
loosening of the pressure gradient and a modest decrease in winds
and seas.

$$
Stripling