484 
AXPZ20 KNHC 080821
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Fri Dec 8 2023

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
0830 UTC.

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

The monsoon trough extends from 09N84W to 06N94W. The ITCZ 
extends from 06N94W to beyond 08N140W. Scattered moderate 
convection is noted from 06N to 13N and W of 116W.

...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...
 
Surface ridging prevails across the basin. Fresh N winds prevail
N of 22N while gentle to moderate winds are noted S of 22N. NW 
swell is inducing 8 to 12 ft seas S through the Revillagigedo 
Islands. Light winds and seas of 1 to 3 ft are ongoing in the 
Gulf of California, with light to gentle winds and seas of 5 to 7
ft in mixed swell for the remainder of offshore waters. Fresh to
strong winds are still active over the Tehuantepec area, with 
seas to 10 ft. 

For the forecast, strong winds and rough seas over the 
Tehuantepec area will dissipate today. Long-period NW swell will
persist off Baja California and the Revillagigedo Islands 
through Sat. Strong winds are likely to develop across most of 
the Gulf of California this weekend, producing rough seas. A 
strong cold front will move across the Gulf of Mexico this 
weekend. A gale- force winds event is expected to begin over the 
Gulf of Tehuantepec on Sun and continue into early next week 
along with very rough seas. Storm- force winds may develop Sun 
night in this area. Gale force winds will prevail on Mon-Tue.

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

Fresh to strong NE to E winds prevail across the Gulf of 
Papagayo, with seas of 6 to 8 ft. Gentle to moderate winds 
elsewhere over the region. Seas range 5 to 6 ft in the Guatemala
and El Salvador offshore waters mostly within N to NW swell. 
Elsewhere, seas range 3 to 5 ft seas primarily in S to SW swell. 

For the forecast, fresh to strong NE to E winds will continue to pulse
across the Gulf of Papagayo each night through the forecast 
period. Gentle to moderate breezes will pulse across the Gulf of
Panama region through Sun. SW swell will maintain 7 ft seas 
between Ecuador and the Galapagos Islands through tonight.

...REMAINDER OF THE AREA...

High pressure dominates the waters N of 10N. Fresh to strong 
trade winds persist south of the ridge, mainly 09N to 16N W of 
125W. Seas in this region are 10 to 13 ft, in a mix of seas due 
to the trade wind flow and long-period NW swell. Fresh NE winds 
prevail elsewhere W of 110W with seas of 8 to 12 ft. Gentle to 
moderate winds and 4 to 7 ft seas are noted E of 110W. 

For the forecast, surface ridging will prevail across the area
through early next week. Large, long-period NW swell will 
continue to move across the all the forecast waters. Seas to 12 
ft are expected from 05N to 20N and W of 125W through the 
weekend, while seas of 8 to 11 ft will prevail elsewhere. This 
swell will gradually decay this weekend.

$$
ERA