000
AXPZ20 KNHC 261508
TWDEP
Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 UTC Tue Nov 26 2024
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 09N83W to 06N90W to 07N100W. The
ITCZ extends from 07N100W to 10N140W. Scattered moderate
convection is active from 08N to 10N between 110W and 115W.
...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...
Fresh to strong gap winds are increasing in the Tehuantepec
region. Otherwise, a surface ridge, anchored by 1019 mb high
pressure near 28N121W west of Punta Eugenia, is supporting gentle
to locally moderate breezes and moderate combined seas primarily
NW swell across open waters, with slight seas over the Gulf of
California.
For the forecast, fresh to strong winds across the Tehuantepec
area will increase to near gale-force by tonight, with these
winds and rough to very rough seas prevailing into Wed. Winds and
seas will then diminish, but similar conditions will develop
starting Fri. Gales are possible Fri night and again late this
weekend as a series of cold front moves through the western Gulf
of Mexico. Farther north, a surface ridge will remain in place
throughout the week to support gentle to moderate NW to N winds
across the Baja California offshore waters.
...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,
AND WITHIN 750 NM OF ECUADOR...
SW swell of 6 to 8 ft is moving through the offshore waters of
Ecuador and Colombia, toward the waters off western Panama and
Costa Rica. Gentle to moderate SW winds persist south of the
monsoon trough, and light to gentle breezes prevail north of the
monsoon trough.
For the forecast, light winds will prevail N of the monsoon
trough, except for occasional pulses of gentle to moderate gap
winds in the Papagayo region. Gentle to moderate SW to W winds
will prevail south of the monsoon trough. NE swell from gap winds
in the Gulf of Tehuantepec will support combined seas to 8 ft
off Guatemala through late Wed. Elsewhere, cross equatorial SW
swell is moving into the regional waters, supporting wave heights
to 8 ft from Ecuador to Costa Rica and western Panama through
Wed, subsiding thereafter.
...REMAINDER OF THE AREA...
Weak ridging extends across the waters north of 15N, anchored by
1019 mb high pressure near 28N121W. Moderate to fresh SW winds
are noted over the waters north of 25N and west of 135W, between
the high pressure and the low pressure to the northwest. Seas are
7 to 9 ft in this area. The relatively weak ridge is supporting
gentle to moderate breezes elsewhere across the region. Combined
seas are 6 to 9 ft primarily in southerly swell south of 10N and
east of 130W, and 4 to 6 ft elsewhere.
Low pressure just NW of the region will slowly move ESE through
the middle of the week, as a cold front forms southward from the
low. Despite this, a relaxed pressure gradient will keep winds
mainly moderate or less as well as seas below 8 ft through the
week.
$$
Christensen