000
AXPZ20 KNHC 281530
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1530 UTC Tue Apr 28 2020

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
1500 UTC.

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

A surface trough extends from 07N78W to 06N80W to 08N90W. The 
ITCZ extends from 08N90W to 06N95W to 08N110W, then continues
from 04N120W to 05.5N140W. The ITCZ is split by a surface trough
that extends from 10N111W to 03N118W. Scattered moderate and 
isolated strong convection is occurring within 120 nm of trough
east of 84W, and from 04N to 12N between 110W and 118W. Scattered
moderate convection is noted within 120 nm of ITCZ between 93W
and 102W, and between 120W and 133W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...
 
The latest coastal observations do not indicate any significant
visibility restrictions associated with ongoing fires in Mexico
and Central America.

A high pressure ridge extends southeastward across the southern
Baja California offshore waters this morning, while a surface
trough is analyzed over the Gulf of California. Gentle to 
moderate winds prevail across the offshore waters under a
relatively weak pressure pattern. Wave heights are approaching 
7-8 ft in NW swell west of Guadalupe Island. Seas are less than 
8 ft elsewhere across the region.

Strong gap winds are expected in the Tehuantepec region Thu 
night into Fri in the wake of a Gulf of Mexico cold front. A set
of NW swell will propagate across the Baja California waters Thu
night through Sat night. A high pressure ridge will persist 
offshore of Baja California through Sat. 

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

Fresh to strong gap winds are likely ongoing over and downstream
of the Papagayo region this morning. Otherwise, gentle winds 
prevail across the forecast waters with seas generally 3-5 ft in
mixed S and NW swell.

Fresh to strong gap winds will pulse over the Papagayo region 
through Sat. Moderate northerly winds will pulse across the Gulf
of Panama for the next several days. Otherwise, tranquil marine
conditions will persist into the upcoming weekend. 

REMAINDER OF THE AREA...

Persistent high pressure extends across the waters north of 20N 
this morning. Moderate NE to E winds prevail between this ridge
and the ITCZ, with seas generally running 5-7 ft based on earlier
altimeter data. Elsewhere, buoy observations indicate gentle to 
moderate SE winds are occurring south of the ITCZ.

High pressure will dominate the northern waters through Sat. A 
set of NW swell will move into the far NW portion Wed and quickly
decay while moving SE through Thu. Another set of fresh NW swell
will propagate southward into the waters west of Baja California
Thu, building seas to 8-10 ft east of 125W by Fri. These seas 
will gradually subside over the weekend. Farther south, seas may
briefly reach 8 ft in S swell south of the Equator and west of
115W tonight, then subside by late Wed.

$$
B Reinhart