000
AXPZ20 KNHC 181440
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1440 UTC Sat Apr 18 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
1440 UTC.

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

A surface trough extends from 07N78W to low pressure near 
06.5N95W to low pressure near 07N113W to 05N120W. The ITCZ 
continues from 05N120W to 04N140W. Scattered moderate isolated 
strong convection is noted from 03N to 10N between 90W and 113W. 
Scattered moderate convection is noted within 210 nm N of the 
ITCZ W of 125W.


OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

High pressure extends W of the offshore waters of Baja 
California. Gentle to moderate winds prevail W of Baja
California. Light to gentle winds prevail elsewhere across the 
forecast waters. Seas are in the 4-6 ft range W of Baja
California and 3-4 ft over the remainder of the open waters. In
the Gulf of California, seas are in the 3-5 ft over the northern
Gulf of California, and 1-2 ft over the remainder of the Gulf of
California. 

The high pressure ridge W of Baja California will weaken through
Sun. Gentle to moderate NW winds are expected W of Baja 
California, with light to gentle winds prevailing elsewhere into 
early next week. NW winds W of Baja California Norte will 
strengthen by Tue night as high pressure builds in from the NW. 
Seas over this area will build to 7-9 ft in fresh NW swell 
through Wed.

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

Fresh winds prevail over the Gulf of Papagayo and Gulf of Panama.
Light to gentle winds orevail elsewhere. Seas are in the 6-7 ft 
range over the Gulf of Papagayo region, and 3-5 ft elsewhere.

The pressure gradient between high pressure N of the area and 
the equatorial trough will support moderate to fresh winds across
the Papagayo region through Sun. Light to gentle winds will 
prevail elsewhere. A moderate SW swell event will impact the 
waters between Colombia and Ecuador this weekend.

REMAINDER OF THE AREA...

A ridge extends from 1022 mb high pressure located near 27N134W 
to near the Revillagigedo Islands. The pressure gradient between
this area of high pressure and lower pressure in the vicinity of
the ITCZ is supporting gentle to moderate winds N of the ITCZ to
20N and W of 125W. Low pressure of 1011 mb is centered near 
06.5N95W with gentle to moderate winds in the vicinity of the 
low. Light to gentle winds prevail elsewhere. Seas are in the 5-8
ft range N of 05N and W of 120W, and 4-5 ft elsewhere.

The area of high pressure will maintain moderate to locally fresh
winds from 06N to 22N W of 125W today. The high will then 
weaken, which will diminish winds in this region through early 
next week. High pressure will then build N of the forecast area, 
strengthening tradewinds W of 130W. The low will shift W-NW the 
next several days, with mainly gentle to moderate winds within 
120 nm of the center of the low. Light to gentle winds are 
expected elsewhere for the next several days.

Little change in seas is expected through Sun. Long period NW 
swell will combine with NE wind waves building seas N of 10N and
W of 130W to 8-9 ft Mon. These seas will expand eastward to 120W
on Tue and Wed.

$$
AL