000
AXPZ20 KNHC 090930
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Fri Apr 9 2021

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 0600 UTC surface analysis and satellite imagery through
0900 UTC.

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

A surface trough extends from 10N77W to 07N85W to 07N98W. The 
ITCZ continues from 07N98W to 04.5N128W to 04N140W. Scattered to
locally numerous moderate to strong convection is noted from 04N
to 09N between 82W and 95W. Scattered moderate isolated strong 
convection is noted from 05N to 07N between 95W and 107W, and 
from 05N to 07N between 119W and 134W. Scattered light to 
moderate convection noted from 29N to 30N between 136.5W and 
140W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A ridge of high pressure prevails west of the Baja California,
and extends southeast to well offshore of Cabo Corrientes. The 
pressure gradient between the ridge and a trough over Mexico is 
supporting fresh to locally strong northerly winds off of Baja 
California Norte and gentle to moderate winds off Baja 
California Sur. Light to gentle westerly winds prevail 
elsewhere across the offshore waters. Seas are in the 4-6 ft 
range west of Baja California, 3-5 ft over the remainder of the 
open waters off Mexico, and 1-3 ft over the Gulf of California. 

Fresh to strong NW winds will prevail west of Baja California 
Norte through Sun as the ridge persists. NW swell will increase 
seas off Baja California Norte Fri through Tue, peaking at 7-10
ft Sat night. Gentle to moderate winds are expected elsewhere 
through Tue.

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

Light to gentle mostly onshore winds prevail across the forecast
area. Seas are in the 3-5 ft range. Little change in wind and 
wave conditions are expected through Tue. However, very active 
weather described above is expected to continue across the 
offshore waters N of 04N and east of 95W through Fri night.

REMAINDER OF THE AREA...

Deep layered low pressure west of the area is accompanied by a 
1015 mb surface low near 28N146W. A surface trough east of this 
feature extends into the discussion area, passing just east of
30N140W. Scattered light to moderate convection is seen along 
and west of this trough from 29N to 34N between 136.5W and 140W.
High pressure prevails across the northern waters east of this 
trough. There is a modest pressure gradient over the forecast 
waters south of the ridge. Moderate to locally fresh winds 
prevail north of the ITCZ to near 15N and west of 118W. Seas 
over this area are in the 6-8 ft range. Gentle to moderate winds 
and seas in the 4-5 ft range prevail north of 20N. Light to 
gentle winds and seas of 4-6 ft prevail elsewhere. Little 
significant change is expected the next couple of days. A weak 
pressure gradient will continue through Sat with gentle to 
moderate trade winds expected. High pressure will build modestly 
over the northern waters Sat through Mon, and slightly strengthen
trade winds north of the ITCZ. Northerly swell will propagate 
south of 30N east of 125W by late Fri. Seas over this area will 
build to around 9-11 ft Sat night and Sun. 

$$
Stripling