000
AXPZ20 KNHC 080854
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0900 UTC Thu Nov 8 2018

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 09N85W to low pres 
near 08N92W to 08N104W. The ITCZ extends from 09N108W TO 05N123W
to 08N135W to beyond 06N140W. Scattered moderate isolated strong
convection is noted within 30 nm of the monsoon trough between 
99W and 103W, and from 08N to 10N west of 130W. 

...DISCUSSION...

OFFSHORE WATERS WITHIN 250 NM OF MEXICO... 

A ridge extends from 1031 mb high pressure near 42N134W 
southeastward to near Baja California Sur at 22N112W. The ridge 
will prevail over this area the next few days. A light to gentle
anticyclonic flow around this ridge will prevail west of the 
Baja California Peninsula, with seas of 4 to 6 ft in NW swell. 

Gulf of California: High pressure will build over the Great 
Basin region today. This will help induce fresh to strong 
northerly winds over the northern Gulf early Fri through Sat 
morning, with seas building to 7-10 ft. Winds will then diminish
to 15 kt or less Sat night and Sun.

Gulf of Tehuantepec: A cold front will shift across the Gulf of 
Mexico and reach the Bay of Campeche by Sat morning. This will 
help usher in the next gap wind event across Tehuantepec. Winds 
are forecast to increase briefly to near gale force late Saturday
then diminish on Sun.

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

Light to gentle winds are forecast north of the monsoon trough. 
Gentle to moderate southwest monsoon flow is expected south of 
the monsoon trough. Long period SW swell will continue to impact 
the waters off Panama and Costa Rica through late today before 
subsiding. Another round of cross equatorial SW swell is expected
to move into the region Fri afternoon, and last though the 
weekend. 
   
REMAINDER OF THE AREA...  

Moderate to locally fresh NE to E winds prevail N of the ITCZ 
and west of 120W, while gentle to moderate E to SE flow is noted 
south of the ITCZ. A new pulse of northerly swell will build 
seas to around 8 ft N of 29.5N between 121W and 130W early Fri.

$$
AL