000
AXPZ20 KNHC 220342
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Fri Apr 22 2022

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
0330 UTC.

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

A surface trough extends from the border between Panama and
Colombia to 09N92W to 09N104W to 07N116W. where latest
scatterometer data indicates that it transitions to the ITCZ
and continues to 05N129W to beyond 07N140W. Scattered moderate 
to isolated strong convection is noted from 04N to 07N between 
97W-100W. Scattered moderate convection is seen from 04N to 08N 
between 93W-96W, and within 180 nm south of trough between
102W-105W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO

A ridge dominates the offshore forecast waters of Baja 
California. The pressure gradient between the ridge and 
relatively lower pressures over Mexico is supporting fresh to 
locally strong NW winds over the waters mainly N of Cabo San 
Lazaro. Seas associated to these winds are in the 5-7 ft range. 
Gentle to moderate NW to N winds prevail elsewhere over the 
waters west of the Baja California peninsula. Light and variable
winds are over the remainder of the offshore waters, including
the Gulf of California. Areas of haze are offshore the coast of 
Mexico south of Cabo Corrientes due to nearby persistent 
agricultural fires.

For the forecast, fresh to locally strong NW to N winds will 
pulse offshore Baja California and N of Cabo San Lazaro through 
Fri, with fresh to strong NW winds then prevailing across most of
the offshore waters of Baja California Fri night into Sat. Long-
period NW swell will reach the offshore waters of Baja 
California N of Punta Eugenia on Fri, building seas to 13 ft by 
Fri evening. This swell will propagate SE, with seas greater than
8 ft reaching the Revillagigedo Islands by Sat evening. 

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

Gentle to moderate winds prevail over the waters south of 05N, 
with light to gentle winds north of 05N. Seas are 4-6 ft in S to 
SW swell. Haze is possible over the offshore waters of Guatemala 
and El Salvador due to nearby persistent agricultural fires.

For the forecast, long-period S to SW swell will continue to 
propagate across the region, with a new set of southerly swell 
reaching the waters between Ecuador and the Galapagos Islands on 
Fri. This swell will raise seas slightly over the Central 
American offshore waters Fri night and Sat, before subsiding Sat 
night and into early next week.

REMAINDER OF THE AREA

High pressure prevails over the waters N of 20N. The pressure 
gradient between the area of high pressure and lower pressure in 
the vicinity of the ITCZ is supporting moderate trades north of 
the ITCZ to near 20N and west of 120W. Gentle to moderate winds 
prevail elsewhere. NW swell is propagating across the NW waters, 
with seas in the 8-12 ft range, except 12-16 ft to the northwest
of a line from 30N129W to 26N140W. Seas of 5-7 ft prevail 
elsewhere.

For the forecast, the long-period NW swell will continue to 
propagate southeastward across the forecast waters. Seas greater 
than 8 ft will cover much of the forecast waters west of 105W by 
Sun night before starting to subside. 

$$
Aguirre