000
AXPZ20 KNHC 141500
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1500 UTC Sun Jun 14 2020

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
1500 UTC.

...TROPICAL WAVES...

The axis of a tropical wave is near 88W, drifting west at 5 to 
10 kt. Scattered showers are evident within 60 nm west of the 
wave axis.

The axis of a tropical wave is near 102W, moving west around 10kt.
Scattered moderate isolated convection is noted from 07N to 11N
between 100W and 105W.

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

The monsoon trough extends from near 09.5N84W to 09N94W to 
12.5N110W to 11N117W. The ITCZ continues from 11N117W to 
07N128W to 09N140W. Scattered moderate isolated strong convection
is noted from 07N to 11N between 93W and 120W. Scattered moderate
isolated strong convection is noted within 240 nm S and 90 nm N
of the ITCZ W of 120W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

The pressure gradient between high pressure ridge over the Sierra
Madre Oriental and the eastern north Pacific monsoon trough is
supporting strong to near gale force northerly gap winds in the
Gulf of Tehuantepec. Seas over these waters are in the 8 to 10 
ft range, due in part to the gap winds but also a component of 
longer period southerly swell.

The pressure gradient between a ridge of high pressure, 
extending west of the Baja California peninsula, and a surface
trough over the Gulf of California is supporting moderate to
fresh winds west of the Baja California peninsula. Light to
gentle winds prevail elsewhere over the forecast waters. Seas are
in the 6-8 ft range off the Baja California peninsula, 4-6 ft
over the remainder of the open waters off Mexico, and 3 ft or
less over the Gulf of California. 

Strong to near gale- force northerly gap winds will persist in 
the Gulf of Tehuantepec region through the early part of the 
week. NW swell will persist off Baja California through mid week.

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

Gentle to moderate SW monsoon flow prevails south of the monsoon
trough, with gentle to moderate winds to the north of the 
monsoon trough. Seas are in the 5-7 ft range. SW swell, with 
seas to 8 ft, is moving northward off Colombia. The swell should
reach the waters off Panama over the next couple of days. 
Another set of SW swell is expected later in the week.

REMAINDER OF THE AREA...

A ridge extends from 1027 mb high pressure centered near 34N145W
ESE to near the Revillagigedo Islands. The pressure gradient
between this area of high pressure and lower pressure in the
vicinity of the ITCZ is supporting fresh to strong trade winds 
from 10N to 20N west of 135W. Seas are in the 8 to 10 ft range
over this area. Moderate to fresh winds, and seas of 5-7 ft, 
prevail elsewhere N of the monsoon trough/ITCZ. 
 
Moderate to locally fresh southerly flow prevails south of the 
monsoon trough/ITCZ. Long-period southerly swell still dominates 
the waters south of 15N and east of 110W, with 5 to 7 ft seas 
south of the monsoon trough east of 110W. Another round of 
southerly swell will enter the area late in the week.

$$
AL