000
AXPZ20 KNHC 041513
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1319 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 1200 UTC surface analysis and satellite imagery through
1515 UTC.

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

The monsoon trough extends from 07N78W to 1010 mb low near 
08N98W to 12N122W, then resumes near 09N131W to 08N140W. 
Scattered moderate convection is from 08N-11N between 98W-122W, 
and from 08N-10N between 130W-135W.
  
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. This swell 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. 8-9 ft seas are well downstream of the Gulf of Tehuantepec.
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 the weekend. 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 a 1010 mb low near 09N131W to 18N124W. This
trough is ahead of a cold front that extends from 30N120W to 
16N129W. Fresh SE winds ahead of the front will diminish 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 08N98W.

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.

$$

ERA