000
AXPZ20 KNHC 082030
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2205 UTC Wed Dec 8 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 1800 UTC surface analysis and satellite imagery through
2000 UTC.

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

The monsoon trough extends from the coast of Colombia near 09N76W
to 06N88W to 08N101W. The ITCZ extends from 08N101W to 07N125W 
and from 07N131W to 08N140W. Scattered moderate convection is 
noted from 11N to 21N between 119W and 127W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO

Moderate N winds are ongoing near Cabo Corrientes, otherwise
gentle winds prevail. Seas are 3 to 5 ft, except 1 to 3 ft in 
the Gulf of California.

For the forecast, strong N gap winds will develop Sun in the Gulf
of Tehuantepec, with near gale conditions likely Sun night into
Mon. A cold front moving through Thu night will lead to fresh 
to strong winds in the northern Gulf of California, followed by a
period of fresh winds throughout the Gulf to Cabo Corrientes Fri
and Sat. For the waters west of Baja California, seas will build
in the wake of the front over the weekend. 

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

Fresh to strong winds are occurring in the Papagayo region. 
Gentle to moderate winds are occurring elsewhere. Seas are 3 to 
6 ft across the waters.

For the forecast, fresh to strong NE winds will pulse in the 
Papagayo region through the weekend. Gentle to moderate winds 
will prevail elsewhere through the next several days. 

REMAINDER OF THE AREA...

A cold front extends from 1016 mb low pressure near 29N123W to 
24N129W to 28N138W. Fresh winds and seas of 5 to 7 ft in NW 
swell prevail behind the front. High pressure ridging south of 
the front is weakening as the front encroaches. A weak surface 
trough near the monsoon trough along 127W combined with the 
higher pressure to the north is leading to fresh NE to E trade 
winds north of the ITCZ to around 22N and west of 130W, along 
with seas of 8 to 10 ft. Gentle to moderate winds are occurring 
elsewhere along with seas of 7 to 8 ft.

For the forecast, the fresh trade winds and seas in the west- 
central waters will gradually diminish and decay through Thu as 
the pressure gradient continues to weaken. The cold front will
gradually stall while weakening tonight. Another cold front is 
expected to move into the northern waters Thu and Thu night, with
building seas and freshening winds behind it on Fri, between 
Baja California and 135W. Yet another front is forecast to move 
southeast of 30N140W Sun with a very large set of NW swell 
potentially behind it.

$$
KONARIK