000
AXPZ20 KNHC 222030
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2205 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 1800 UTC surface analysis and satellite imagery through
2030 UTC.

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

A surface trough extends from 09N83W to 09N99W to 06.5N120W. The
ITCZ continues from 06.5N120W to 03N140W. Scattered moderate
convection is noted from 03N to 08N between 77W and 86W. Scattered
moderate isolated strong convection is noted from 03N to 10N 
between 99W and 121W. Scattered moderate convection is from 04N 
to 06N between 121W and 131W. 

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 moderate to 
fresh NW-N winds over the waters west of the Baja California 
peninsula. Light and variable winds are over the remainder of the
offshore waters. Gentle to moderate winds are over the Gulf of 
California. NW swell has propagated into the waters off Baja 
California Norte, with seas building to near 12 ft NW of 
Guadalupe Island. 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 
prevail across most of the offshore waters of Baja California 
tonight into Sat night. Long-period NW swell has propagated into 
the waters west of Baja California Norte will propagate SE, with 
seas greater than 8 ft reaching the Revillagigedo Islands by Sat 
evening. Strong north winds are expected in the Gulf of 
Tehuantepec region late Tue and Wed. 

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

Gentle to moderate winds prevail over the waters between Ecuador
and the Galapagos Islands, with light to gentle winds elsewhere.
Seas are 4-6 ft in S to SW swell, reaching 7 ft between Ecuador
and the Galapagos Islands. 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 prevails across the 
region. A new set of southerly swell will build seas slightly 
over the Central American offshore waters tonight and Sat, before
subsiding Sat night and into early next week. 

REMAINDER OF THE AREA

High pressure continues 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 to fresh NE trade
winds N of the ITCZ to near 25N and west of 120W. Gentle to 
moderate winds prevail elsewhere. NW swell is propagating across 
the discussion waters, with seas greater than 8 ft covering the 
waters northwest of a line from 30N116W to 07N140W, peaking 
around 14 ft near 29N129W. Seas are 5-7 ft 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. 

$$
AL