000
AXPZ20 KNHC 030332
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Fri Dec 3 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
0330 UTC.

...SPECIAL FEATURES...

Gulf of Tehuantepec Gale Warning: The pressure gradient between 
high pressure building over the Gulf of Mexico and lower 
pressure within the eastern north Pacific monsoon trough is 
supporting gale-force gap winds over the Gulf of Tehuantepec 
tonight through early Friday. Winds are forecast to remain 
fresh to strong through the weekend. Seas will peak near 11 ft 
tonight. Please see the latest NWS High Seas Forecast issued by 
the National Hurricane Center at 
website://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more 
information.

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

The monsoon trough extends from a 1005 mb low pressure north
of Cali, Colombia to 07N84W to 06N92W. ITCZ continues from 
06N92W to 07N114W to 09N125W. It then resumes from 09N125W to 
beyond 08N140W. Scattered moderate convection is noted from 08N 
to 13N between 116W and 125W and from 06N to 11N between 130W 
and 139W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO

Please see the Special Features section above for details on the
ongoing gale-force gap wind event in the Gulf of Tehuantepec.

N to NE gale-force winds are ongoing in the Gulf of Tehuantepec,
with seas building to  10 ft. Moderate to locally fresh NW winds
are along the southern Gulf of California and the entrance of 
the gulf. Elsewhere, a weak pressure gradient prevails, 
supporting mainly light to gentle winds.E of 96W. Seas are in 
the 4-5 ft range over the open waters off Mexico, and 1-3 ft over
the Gulf of California. 

On the forecast, the gale-gap wind in the Gulf of Tehuantepec 
will drop below gale by early Friday, then strong winds remain 
in the region before diminishing to moderate speeds Sun morning. 
Moderate to locally fresh NW winds at the entrance of the Gulf of
California, and the southern Gulf of California will prevail 
through Sun. Moderate to locally fresh winds will develop over 
the waters west of the Baja California peninsula tonight and 
continue through Sun night. Winds will increase over the Gulf of 
California Tue.

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

Fresh to strong NE winds, and seas to 8 ft, prevail over the
Gulf of Papagayo. Gentle winds are elsewhere north of the
monsoon trough. Gentle to moderate winds are south of the 
monsoon trough. Seas are in the 4-6 ft range. 

For the forecast, the fresh to strong NE winds in the Papagayo 
region will prevail through Tue night. Gentle to moderate S to 
SW winds are expected S of the monsoon trough through early next 
week. Moderate winds will impact the Gulf of Panama today. 

REMAINDER OF THE AREA...

A 1018 mb high pressure is centered near 26N122W remains in 
control across the waters north of 20N. The pressure gradient 
between this area of high pressure and lower pressure in the 
vicinity of the ITCZ is supporting moderate to fresh winds north 
of the ITCZ to near 20N and west of 120W. Light to gentle winds 
are over the waters north of 20N, except W of 135W where moderate
NE winds are observed. Moderate to locally fresh SE winds 
prevail south of the ITCZ. Seas are in the 5-7 ft range. 

$$
Torres