000
AXPZ20 KNHC 070900
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
511 UTC Sat Apr 7 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... 

A surface trough extends from 09N84.5W to 07N90W to 06N100W. The
ITCZ continues from 06N100W to 07N121W to 03N136W to beyond 
03N140W. Scattered moderate convection is noted within 60 nm of
the trough between 84W and 87W. Scattered moderate isolated
strong convection is noted within 150 nm either side of the ITCZ
between 112W and 125W. Scattered moderate isolated strong
convection is noted within 210 nm north of the ITCZ between 126W
and 135W. 

...DISCUSSION...

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Gentle NW winds and 4 to 6 ft seas prevail across the region. A 
cold front will move into the waters off Baja California late 
tonight. High pressure building behind the cold front will 
support fresh to strong NW winds off Baja California Norte 
tonight and Sun, diminishing early next week. Looking ahead, 
fresh to strong winds are possible in the Gulf of Tehuantepec by 
Wed as a cold front moves into southern Mexico. 

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

Light to gentle winds are expected through the forecast period. 
Seas in the 2-4 ft range will prevail, except for the far 
southern zones where southerly swell will build seas to 4-6 ft 
this weekend. Fresh gap winds are possible in the Gulf of 
Papagayo by mid week. 

REMAINDER OF THE AREA... 

A cold front extending from 30N134W to 26N140W has ushered in a 
set of decaying NW swell. Seas up to 9 ft prevails over the 
waters north of 28.5N west of 136W. The front will shift 
eastward through the weekend. Associated NW swell will subside 
below 8 ft Sun.

Elsewhere 1020 mb high pressure centered near 26N128W will 
continue to support mainly light to gentle winds north of 15N and
moderate to occasionally fresh trades farther south.

Looking ahead, a cold front will move into the waters north of 
25N early next week, accompanied by larger NW swell, with seas 
peaking 10 to 15 ft over the waters north of 25N and west of 130W
waters Tue. NW swell of 8 to 11 ft will cover the region north 
of 15N and west of 130W through mid week.

$$
AL