000
AXPZ20 KNHC 300913
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
544 UTC Wed May 30 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 11.5N86W to 13N95W to 08N119W. 
The ITCZ extends from 08N119W to beyond 08N140W. Scattered 
moderate isolated strong convection was noted east of 80W. 
Scattered moderate isolated strong convection was noted from 05N 
to 09N between 80W and 87W. Scattered moderate isolated strong 
convection was noted from 09N to 11N between 96W and 104W. 
Scattered moderate convection was noted from 06N to 08N between 
123W and 134W. 

...DISCUSSION...

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A northwest to southeast ridge will prevail west of the area. 
This will support mainly gentle to moderate northwest breeze west
of the Baja Peninsula. Seas of 7 to 9 ft will propagate 
southeast across the waters north of 27N through Thu, subsiding 
below 8 ft on Thu night.
   
Gulf of California: A surface trough over the northern Gulf of
California will support moderate locally fresh southwesterly 
winds today, briefly strengthening tonight through Thu morning. 
Light and variable winds are expected across the southern gulf 
until late Thu before increasing to moderate to fresh. 

Gulf of Tehuantepec: Winds are expected to be light and variable 
through the upcoming weekend.    
  
OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND 
WITHIN 750 NM OF ECUADOR... 

The monsoon trough will gradually shift southward this week, 
reaching 10N by Fri. Light to gentle southwest to west winds, and
3 to 5 ft seas will prevail S of the trough. Gentle to 
occasionally moderate offshore nocturnal winds will prevail near 
gap areas N of the trough.
  
REMAINDER OF THE AREA...
   
A surface ridge extends across the northern waters. Fresh to 
locally strong trades, and 7 to 10 ft seas, are observed across 
the tropics south of the ridge from 10N to 20N west of 130W. 
These conditions will gradually diminish through Thu. 

Northerly swell, with seas in the 8 to 9 ft range prevails north
of 26N between 123W and 137W. The swell will propagate southward
the next couple of days while subsiding. Seas associated to this
swell will subside below 8 ft Fri.
  
$$
AL