000
AXPZ20 KNHC 070901
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Sat Nov 7 2020

Tropical Weather Discussion for the eastern Pacific Ocean from
the Equator to 32N, east of 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
0900 UTC.

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

The monsoon trough extends from 13N90W to 13N105W to 10N113W to 
11N118W, then resumes from near 16N123W to 09N131W. The ITCZ 
continues from 09N131W to beyond 09N140W. Scattered moderate 
convection is noted within 60 nm of 12N97.5W. Scattered moderate 
isolated strong convection is evident from 08N to 11N between 
132W and 139W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A strong cold front extending from 32N116W to beyond 26N126W 
will induce fresh to strong westerly gap winds in the northern 
Gulf of California tonight through Sat night, and fresh NW winds 
across the offshore waters of Baja. Large NW swell associated
with the front will rapidly increase combined seas west of the 
Baja California through Sun. Peak seas may reach as high as 16 
ft off Baja California Norte by Sun.

Gulf of Tehuantepec: Northerly gap winds are expected to
gradually diminish across the region today, with associated seas
subsiding to less than 10 ft by this evening. Swell generated in
this region is producing a large area of high seas that are 
combining with SW cross-equatorial swell. 

Gentle winds will persist south of Cabo Corrientes outside of 
the Gulf of Tehuantepec. NW winds are expected to remain at 
10-15 kt from Puerto Vallarta to Manzanillo through the weekend, 
with seas subsiding to 4-6 ft Sat and Sun as SW swell subsides.

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

Tropical Depression Eta in the NW Caribbean Sea is enhancing SW
wind flow into Central America from Costa Rica to El Salvador. 
Seas are 7 to 10 ft in this area, in a mix of SW cross-equatorial
swell and NW swell spreading out from Tehuantepec. Winds and 
seas will diminish today as Eta moves away. Moderate to locally 
fresh SW winds will prevail across the region through Sun, then 
subsiding Sun night and Mon.

REMAINDER OF THE AREA...

A strong cold front moving into the northern waters extends from
30N118W to 26N126W to 26N134W to 27N140W. The front will push 
southward through Sun, then stall and dissipate along 20N on Mon.
Fresh to strong N to NE winds and large NW swell will accompany 
the front today. This swell will mix with the lingering swell 
from Odalys and produce seas greater than 8 ft for most of the 
area north of 12N and west of 110W by early next week.

The remnant low of Post-Tropical Cyclone Odalys is now a well 
defined low-level cloud swirl. The remnants of Odalys will move 
west-southwestward through tonight and gradually weaken to a 
trough as it reaches cooler waters and drier more stable air.

Ridging dominates north of 20N, anchored by strong high pressure
well north of the area. Moderate to fresh NE trade winds persist
from 10N to 20N, while moderate to fresh N to NE winds prevail N
of 20N and W of 118W, ahead of the cold front.

$$
Mundell