000
AXPZ20 KNHC 121552
TWDEP
Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 UTC Sun Apr 12 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 1200 UTC surface analysis and satellite imagery through
1530 UTC.
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
A surface trough extends from 07N78W to 06N94W. The ITCZ extends
from 06N94W to beyond 07N140W. A southern hemispheric ITCZ extends
from 05.5S86W to 02S140W. Scattered moderate convection is noted
from 02N to 10N between 82W and 111W, from 05N to 11N between
127W and 140W, and along the southern hemispheric ITCZ.
...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...
A weak surface ridge extends eastward into the waters of Baja
California, to the south of a cold front approaching the region
from the northwest. This pattern is supporting light to gentle NW
to N winds across the waters of Baja, then becoming gentle N to
NE winds from Baja Sur beyond the Revillagigedo Islands. Moderate
seas to 5 ft in mixed NW and SW swell prevail across these
waters. Light to gentle winds are in the Gulf of California with
slight seas, except in northern portions where fresh to strong SW
gap winds have developed tonight. Seas have built quickly there
to 4 to 6 ft. Farther east, gentle NW winds prevail across the
waters from Las Tres Marias to Puerto Angel, except moderate
winds near the coast of Cabo Corrientes. Strong N gap winds have
expanded offshore of the Tehuantepec region to 14N, where seas
are now 6 to 9 ft. An upper level trough shifting slowly eastward
across the area now extends from Baja Sur northward into NW
Mexico, with associated clouds and showers now across interior
Mexico.
For the forecast, a cold front will move into the Baja Norte
waters early Mon then gradually dissipate across central Baja and
the Gulf of California Tue. Expect light to gentle NW to N winds
across the Baja waters ahead of the front, before winds begin to
freshen Mon evening through Tue. High pressure behind the front
will dominate the region through the rest of the week. Fresh to
strong SW to W gap winds are expected in the northern Gulf of
California tonight through Mon night ahead of the front, with
winds then becoming moderate to fresh from the N through the
entire Gulf Tue morning through Wed. Elsewhere between Baja Sur
and Puerto Angel, winds will be moderate or weaker with moderate
seas through Tue. Pulsing fresh to strong northerly gap winds
will prevail across and downwind of the Tehuantepec region
through Tue morning, with seas building to 8 ft during the early
mornings. Afterwards, mainly moderate and variable winds are
expected through midweek.
....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,
AND WITHIN 750 NM OF ECUADOR...
Fresh to strong NE to E gap winds prevail across the Papagayo
region and extend downwind to near 90W, producing rough seas of
7 to 9 ft. Moderate to fresh N to NE winds and moderate seas of
4 to 6 ft in SW swell prevail in the Gulf of Panama, and extend
beyond the Azuero Peninsula to 04N. Light to gentle winds and
moderate seas 4 to 5 ft in SW swell dominate the remainder of the
offshore forecast waters. Scattered moderate convection continues
offshore of western Panama and Costa Rica.
For the forecast, broad high pressure will continue N of the
area through Wed before weakening, and maintain fresh gap winds
pulsing to strong during the nighttime and early morning hours
across the Papagayo region and downwind to 90W. Winds up to 30
kt, and seas up to 9 ft are forecast early this morning and
again Sun night. In the Gulf of Panama, moderate northerly winds,
pulsing to fresh each night, are expected throughout the
forecast period. Light to gentle winds and moderate seas will
prevail elsewhere. Cross-equatorial SW swell will raise seas to
6 to 8 ft between Ecuador and the Galapagos Islands Tue through
Wed. Pulses of active convection will continue across the waters
S of 09N through Mon, and will propagate westward.
...REMAINDER OF THE AREA...
High pressure NW of the area extends a ridge southward through
30N142W and into the area W of 130W. East of the ridge, a cold
front has crossed into the local waters, passing through 30N123W
to 26N131W. A weak ridge prevails ahead of this front and
extends to near the Revillagigedo Islands. An upper level trough
continues to move slowly eastward across the area N of 18N and
east of 115W, with associated clouds and weather recently
shifting well inland across interior Mexico. The pressure
gradient between the ridge and lower pressures in the vicinity of
the ITCZ supports moderate to fresh winds N of the ITCZ to about
15N between 98W and 124W, and south of 22N to the west of 124W.
Moderate seas in mixed NW and S swell generally prevail across
the area waters, with seas 7 to 8 ft within the trade wind zone
between 90W and 115W.
For the forecast, the weak high pressure ridge will dominate the
weather pattern across the northern forecast waters through
early Mon with little change in winds and seas, before the high
shifts southeast Mon through midweek to strengthen the pressure
gradient modestly. Moderate winds are expected in the trade wind
zone W of 95W through Mon. A weakening cold front across the
northern waters W of 125W will move into the Baja Norte early Mon
then across northern Gulf California late Mon. Moderate N to NE
winds and moderate seas 7 to 8 ft in NW swell are forecast in the
wake of the front.
$$
ERA
