000
AXPZ20 KNHC 150231
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Wed Sep 15 2021

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
0240 UTC.

...TROPICAL WAVES...

The axis of a tropical wave is near 82W north of 03N to across 
western Panama and into the Caribbean Sea, moving west at 10 to 
15 kt. Scattered moderate convection is noted from 03N to 08N 
between 77W and 83W.

The axis of a tropical wave is near 93W north of 04N, moving 
west at 5 to 10 kt. Scattered moderate convection is noted from 
12N to 14N between 90W and 93W.

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

The monsoon trough extends from 10N86W to 18N106W to 11N125W. 
The ITCZ continues from 11N126W to 10N134W. Scattered moderate 
convection is noted from 11N to 20N between 100W and 110W, from
08N to 12N between 110W and 120W. Scattered moderate isolated 
strong convection is noted from 08N to 11N between 132W and 138W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Gentle to moderate winds prevail west of Baja California.
Moderate to locally fresh winds are noted offshore of Guerrero 
and Oaxaca. Light to gentle winds prevail elsewhere. Seas are 7-8
ft south of southern Mexico and 6-7 ft elsewhere over the open 
waters off Mexico. Over the Gulf of California, seas are 3 ft or 
less. 

For the forecast, gentle to moderate winds will prevail across 
the offshore waters the next several days, except to locally 
fresh west of Baja California starting mid-week. Large SW swell 
will move across the waters off southern Mexico through mid-week.

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

Gentle to moderate winds prevail over the offshore waters, along
with seas in the 6 to 8 ft range. 

For the forecast, large SW swell across the region will subside 
by the end of the week. Winds over the Papagayo region will pulse
to moderate to fresh at night during the upcoming weekend. 
Otherwise, gentle to moderate winds will prevail.

REMAINDER OF THE AREA...

Moderate to locally fresh southerly winds prevail south of the
monsoon trough and west of 105W. Seas are in the 6 to 8 ft range
across much of the area south of 15N and east of 117W, mainly 
due to local wind flow and persistent cross-equatorial southerly 
swell. NW to N swell is supporting seas of 7 to 8 ft north of 
27N between 120W and 128W. Gentle to moderate winds and moderate
seas are noted elsewhere, locally fresh north of the ITCZ to 15N
and west of 130W.

For the forecast, winds and seas will gradually diminish and
subside across the region through the week and into the weekend.

$$
AL