112 
AXPZ20 KNHC 250337
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Tue Oct 25 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
0325 UTC.

...TROPICAL WAVES...

A tropical wave has its axis along 106W, south of 17N, moving W 
at 10-15 kt. A few showers are noted near the trough axis.

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

The monsoon trough extends from the coast of Costa Rica near
10N86W to 10N109W to a 1010 mb low pres near 13N131W to 11N137W.
The ITCZ stretches from 11N137W to 10N140W and beyond. Scattered
moderate convection is occurring from 11N to 15N and between 115W
and 120W and from 10N to 14N and between 125W and 132W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

High pressure north of the area dominates the offshore waters of
Baja California, sustaining gentle to moderate northerly winds,
except for locally fresh winds within 100 nm of the coast. Seas
in these waters are 5-9 ft, with the highest seas occurring in
the northwest portion of the offshore waters. An altimeter pass
from a few hours ago captured seas up to 10 ft in those waters.

In the northern Gulf of California, the pressure gradient between a
building ridge over the western United States and a trough over 
northern Mexico, remnants of a cold front, result in moderate to
occasionally strong northerly winds and seas of 4-6 ft. Gentle 
to moderate northerly winds and seas of 2-4 ft prevail in the 
rest of the Gulf. Elsewhere in the offshore waters of Mexico, 
light to locally moderate westerly winds and seas of 4-6 ft are 
prevalent.

For the forecast, high pressure will dominate the offshore 
forecast waters of Baja California during the next several days, 
producing mainly gentle to moderate NW-N winds. Wave heights of 
6-9 ft in northwest swell across the waters N of Punta Eugenia 
will subside to below 8 ft late tonight. The fresh to 
occasionally strong north winds in the northern Gulf of 
California will shift to the central part of the Gulf tonight, 
diminish to mainly fresh speeds early on Tue and become light and
variable early on Wed.
 
OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, 
AND WITHIN 750 NM OF ECUADOR...

Strong thunderstorms over Panama and NW Colombia spill into the
nearby waters, while mainly tranquil weather conditions are found
in the rest of the basin. Moderate to fresh southerly winds are
observed south of the monsoon trough, along with seas of 4-6 ft.
Light to gentle easterly winds and seas of 3-5 ft prevail
elsewhere.

For the forecast, moderate to fresh southerly winds and moderate
seas will persist south of the monsoon trough through the
remainder of the week. Light to occasionally moderate winds will
occur in the Papagayo region during the forecast period. Additional
pulses of long-period southwest swell will reach the waters 
between Ecuador and the Galapagos Islands by Thu increasing the 
wave heights slightly.

REMAINDER OF THE AREA...

A 1030 mb high pressure centered near 36N139W extends southward
and dominates most of the eastern tropical Pacific. The pressure
gradient between this ridge and lower pressures in the deep
tropics sustains moderate to fresh easterly winds across most of
the region. Seas of 6-9 ft are occurring N of the monsoon trough,
with the highest seas found near 30N125W. An altimeter pass from
a few hours ago indicated seas up to 8 ft near 23N136W. Farther 
south, moderate to fresh southerly winds are prevalent south of 
the monsoon trough. Seas in these waters are 5-7 ft.

For the forecast, the long-period NW-N swell will gradually 
decay through Tue evening, allowing for the wave heights to
subside below 8 ft. High pressure will be the main feature 
controlling the wind regime over the waters north of the monsoon 
trough and west of about 110W through at least Wed night. A new 
set of long- period northwest swell will bring wave heights of 
8-9 ft to the northeast part of the remainder of the area waters 
beginning Wed afternoon.

$$
DELGADO