000
AXPZ20 KNHC 140840
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Tue Sep 14 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 0600 UTC surface analysis and satellite imagery through
0840 UTC.

...TROPICAL WAVES...

The axis of a tropical wave is near 91W north of 05N, moving 
west at around 10 kt. Associated convection is described in the 
section below.

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

The monsoon trough extends from 11N86W to 17N103W to 09N127W. 
The ITCZ continues from 09N127W to 09N140W. Scattered moderate 
and isolated strong convection is noted from 08N to 13N between 
87W and 92W. Scattered moderate convection is from 07N to 17N 
between 97W and 110W. 

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Gentle to moderate winds are noted south of southern Mexico as
well as west of the Baja California peninsula. Light to gentle
winds prevail elsewhere. A large area of SW swell is impacting 
the waters off southern Mexico, with seas in the 8 to 10 ft 
range. Seas are in the 6 to 8 ft range over the remainder of the
open waters off Mexico in a mix of SW and northerly swell. 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, locally fresh west of 
Baja California by mid-week. Large SW swell will move across the 
waters off southern Mexico through mid-week. Seas will reach near
8 ft off Baja California through mid- week in a mix of NW and S 
swell. 

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

Gentle to moderate prevail over the offshore waters. Seas are in
the 7-8 ft range over the waters between Colombia and the 
Galapagos Islands. Elsewhere, seas are in the 6-8 ft range. 

For the forecast, large SW swell will continue to impact the 
region subsiding by the end of the week, along with gentle to 
moderate winds.

REMAINDER OF THE AREA...

A broad swath of moderate SW winds prevail within 300 nm south 
of the monsoon trough east of 110W. Seas are in excess of 8 ft 
across much of the area south of 15N and east of 120W, mainly due
to local wind flow and persistent cross- equatorial southerly 
swell. NW to N swell is supporting seas of 7 to 9 ft north of 25N
between 120W and 130W. Gentle to moderate winds and moderate 
seas are noted elsewhere.

For the forecast, winds and seas will diminish across the region
through mid week.

$$
AL