000
AXPZ20 KNHC 040915
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Wed Dec 4 2019

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 08N78W to 09N87W to 07N100W to 
09N118W to 12N123W, then resumes near 11N126W to 07N133W to 
08N140W. Scattered moderate isolated strong convection is noted 
from 06N to 11N between 97W and 102W, from 06N to 10N between 
111W and 122W, and from 07N to 10N between 128W and 123W. 
Scattered moderate to strong convection is occurring from 15N to 
19N between 121W and 125W.
  
OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Moderate to occasionally fresh NW winds continue over the Gulf 
of California. Seas remain 8-9 ft offshore of Baja California 
Sur in NW swell, while 8-9 ft seas are well downstream of the 
Gulf of Tehuantepec. NW swell across the Baja California waters 
will continue decaying today, with seas subsiding below 8 ft. 
Fresh NW to N flow will prevail over the central and southern 
Gulf of California Thu night through Fri night. Gale force winds 
are possible over the Gulf of Tehuantepec Fri night through Sat 
night. Large NW swell will reach the waters off Baja California 
this weekend. 

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

Fresh to occasionally strong NE to E winds will pulse across and 
downstream of the Gulf of Papagayo through Sun. Gentle to 
moderate S to SW monsoon flow will persist across the offshore 
waters of Costa Rica, Panama, Colombia, and Ecuador during the 
next several days.

REMAINDER OF THE AREA...

NW swell dominates much of the region west of 120W, with the 
highest seas to 11 ft W of 130W. This swell will continue 
propagating SE while gradually decaying through early Thu.

A trough extends from 11N127W to 21N126W, ahead of a cold front 
from 30N124W to 21N128W. Fresh SE winds ahead of the front will 
diminish by later today. Elsewhere, a small area of fresh to 
strong winds and seas to 9 ft are found near a low pressure area 
embedded along the monsoon trough near 09N98W.

The cold front over the northern waters will move eastward and 
weaken through tonight. Large NW swell will move into the NW 
waters Thu night and propagate SE through the weekend, building 
seas greater than 12 ft over the NW portion Fri through Sat.

$$
Mundell