000
AXPZ20 KNHC 291417
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 UTC Thu Apr 29 2021

Tropical Weather Discussion for the eastern Pacific Ocean from
the Equator to 32N, east of 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
1410 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

The monsoon trough extends from northern Colombia near 10N75W to
10N107W to 09N115W. The ITCZ continues from 09N115W to 04N130W to
03N140W. Scattered moderate and isolated strong convection is
noted from 04N to 09N between 93W and 106W, and from 02N to 14N
between 107W and 119W. Scattered moderate convection is noted
from 05N to 12N between 83W and 91W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A ridge of high pressure prevails west of the Baja California
peninsula. The pressure gradient between this are of high
pressure and low pressure over Mexico is supporting moderate to
locally fresh winds off the Baja California peninsula as well as
over much of the Gulf of California. Gentle to moderate winds 
prevail elsewhere over the open waters off Mexico. Seas are in 
the 4-6 ft range in a mix of northwest and south swell over the 
open waters off Mexico.

For the forecast, high pressure west of the region will support 
moderate to fresh winds off Baja California, locally strong in
the central and southern Gulf of California through the end of
the week. A set of northwest swell will build west of Baja
California late in the upcoming weekend into early next week. 
Farther south, seas will build as a set of southerly swell 
propagates across the area. Additional southerly swell will 
further build seas slightly late Fri and Sat over the waters 
south of the Gulf of Tehuantepec region, then subsiding Sun. 

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

Moderate winds are noted in the Papagayo region. Light to gentle
winds persist elsewhere. Seas are in the 4-6 ft range in 
lingering southerly swell, except 5-8 ft offshore of Ecuador.

For the forecast, light to gentle winds will persist across the 
region, with subsiding southerly swell.

REMAINDER OF THE AREA...

High pressure is centered north of the area with a ridge axis 
extending from 32N131W southeast to near the Revillagigedo 
Islands. The pressure gradient between the area of high pressure 
and lower pressure in the vicinity of the ITCZ is supporting 
mainly moderate winds north of the ITCZ, with seas in the 4-7 ft 
range, locally to 8 ft near 12N114W. Light to gentle winds and 
seas in the 5-7 ft range prevail elsewhere.

High pressure will continue north of the area with these general
conditions prevailing into the upcoming weekend. A set of 
northwest swell with building seas will propagate south of 30N 
between 120W and 130W late in the weekend into early next week.
 
$$
Lewitsky