000
AXPZ20 KNHC 100316
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Mon Apr 10 2023

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
0300 UTC.

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

A surface trough extends from the coast of Panama near 08N78W to
06N90W. The ITCZ continues from 06N90W to 04N120W to 03N139W. 
Scattered moderate convection is present from 02N to 08N between
86W and 95W.

...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

High pressure of 1021 mb located near 29N130W extends a ridge
across the offshore forecast waters of Baja California producing
gentle to moderate NW to N winds and seas of 3 to 5 ft. Light to 
gentle NW winds are noted in the Gulf of California. Similar wind
speeds prevail across the remainder of Mexican offshore waters, 
except in the Gulf of Tehuantepec and downwind to near 15N where
N winds in the 20 to 30 kt range and seas of 8 ft are seen.

For the forecast, strong northerly winds are expected in the 
Gulf of Tehuantepec at night and into the morning hours with seas
building to 10 or 11 ft. These marine conditions will extend
downwind of the Gulf to near 12N96W over the next 48 hours. Seas
generated by strong winds offshore California will propagate 
across the waters N of Punta Eugenia on Wed, with seas building 
to 10 or 11 ft by Wed night into Thu. In the Gulf of California, 
expect fresh to locally strong SW winds Wed night into Thu ahead 
of a weakening frontal boundary. Elsewhere, moderate or weaker 
winds and moderate seas will prevail.

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

Latest scatterometer data indicate fresh to strong NE to E winds
across the Gulf of Papagayo and downstream to near 89W, and
moderate to fresh N to NE winds south of the Azuero peninsula, 
extending southward to about 04N. Seas in these waters are 4-7 
Elsewhere, light to gentle winds and slight to moderate seas 
prevail.

For the forecast, pulsing fresh to strong easterly winds are
forecast in the Gulf of Papagayo at night and into the early
morning hours through Thu with seas building to 8 ft. Mainly 
fresh N to NE winds are expected in the Gulf of Panama at night 
and into the early morning hours with seas of 5 to 7 ft. Elsewhere, 
moderate or weaker winds and slight to moderate seas will prevail.

...REMAINDER OF THE AREA...

High pressure of 1021 mb located near 29N130W dominates the N waters,
mainly N of 15N and W of 110W. The most recent scatterometer 
satellite pass show moderate to locally strong NE-E winds from 
the ITCZ to about 20N and west of 120W. Seas in these waters are 
6-8 ft. Elsewhere, gentle to moderate winds are noted N of the 
ITCZ with light to gentle winds S of the ITCZ. 

For the forecast, the aforementioned high pressure will weaken as
a cold front enters the NW forecast waters later today. Fresh to
strong winds and building seas of 8 to 10 ft are expected in the
wake of the front, forecast to reach from 30N125W to 26N140W by
Tue evening. Moderate to fresh trades will prevail across the
west-central waters through at least mid-week. A NW swell event
will begin to propagate across the NE waters on Wed, with seas 
building to 10 or 11 ft N of Punta Eugenia by Wed night into Thu.

$$
GR