000
AXPZ20 KNHC 190305
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Fri Jun 19 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 0000 UTC surface analysis and satellite imagery through 
0300 UTC.

...TROPICAL WAVES...

A tropical wave is analyzed along 90W, moving west at 10 to 15 
kt. Scattered moderate isolated strong convection is noted 
from 06N to 10N between 86W and 95W. 

A tropical wave is analyzed along 101W, moving west at 10 to 15 
kt. Scattered moderate isolated strong convection is noted from 
07N to 09N between 100W and 102W.

A tropical wave is analyzed along 121W/122W, moving west at 15 
to 20 kt. Scattered moderate to strong convection is noted from 
09N to 15N between 118W and 125W.

A tropical wave is analyzed along 138W/139W, moving west at 15 
kt. Isolated convection is noted within 60 nm of the wave axis.

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

The monsoon trough extends from 09N76W to 10N93W to 13N123W to 
10N140W. Convection occurring near the tropical waves is 
described above. Scattered moderate isolated strong convection 
is noted elsewhere from 08N to 11N between 106W and 117W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Scatterometer wind data shows mainly light to gentle winds west 
of the Mexico coastline. A deep layer ridge west of the area is 
building eastward following a sharp trough extending from the 
southern Rockies through central Baja California to 22N130W. The 
associated pressure gradient supports moderate to fresh SW 
winds in the northern Gulf of California, and moderate to fresh 
NW winds from Punta Eugenia to Cabo San Lucas, Baja California. 
The gradient across the northern Gulf of California will relax 
Fri as the ridge continues to build eastward. NW swell producing 
6-7 ft seas W of Baja California Norte will subside overnight. 

Looking ahead, moderate to fresh NW winds are expected across 
the waters of Baja California S of Punta Eugenia through the 
weekend as a ridge builds into the area.

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 north of the trough axis. 
Seas are generally in the 4-6 ft range. Cross-equatorial long 
period SW swell is expected to arrive tonight and Fri. Winds S 
of the monsoon trough will also increase to moderate to fresh 
tonight through Fri evening and spread to the coasts between the 
Gulf of Panama and Costa Rica.

REMAINDER OF THE AREA...

A ridge extends E-SE from high pressure centered near 35N140W to 
just north of the Revillagigedo Islands. The associated pressure 
gradient is supporting fresh trade winds from 10N to 20N west of 
120W. Seas are 6 to 8 ft range across this area in mixed swell. 
Moderate to fresh trade winds and 5-7 ft seas prevail elsewhere 
north of the convergence zone, west of 120W.
 
Moderate southerly flow prevails south of the monsoon trough. 
Long-period southerly swell dominates the waters south of 12N 
and east of 115W, in 6 to 8 ft seas. Another round of southerly 
swell will enter the area tonight and Fri, and raise sea heights 
1-2 ft across the waters south of 10N.

$$
Mundell