000
AXPZ20 KNHC 200928
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Sat Jun 20 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 0600 UTC surface analysis and satellite imagery through 
0900 UTC.

...TROPICAL WAVES...

A tropical wave is analyzed along 82W, moving west at 15 kt. 
Scattered moderate isolated strong convection is noted from 06N 
to 10N between 81W and 83W.

A tropical wave is analyzed along 98W, moving west at 15 kt. 
Scattered moderate isolated strong convection is noted from 07N 
to 12N between 97W and 103W. 

A tropical wave is analyzed along 107W, moving west at 15 kt. 
Scattered moderate convection is noted from 06N to 12N between 
105W and 108W.

A tropical wave is analyzed along 127W, moving west at 15 to 20 
kt. Scattered moderate to strong convection is noted from 10N to 
12N between 124W and 126W.

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

The monsoon trough extends from 08N78W to 11N106W to 12N126W to 
11N132W. The ITCZ extends from 11N133W to beyond 10N140W. 
Scattered moderate to strong convection is noted from 08N to 10N 
between 93W and 95W. 

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A surface ridge is building eastward to around 20N113W. The 
associated pressure gradient supports moderate NW winds west of 
Baja California. Mainly light to gentle winds and 4-7 ft seas 
prevail elsewhere. Moderate to fresh NW winds are expected west 
of Baja California S of Punta Eugenia this weekend into early 
next week. These winds should diminish slightly by mid week.

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

Moderate to fresh SW winds prevail south of the monsoon trough 
along with 6-8 ft seas in southwesterly cross-equatorial swell. 
Gentle to moderate winds are north of the trough axis along with 
seas of 5-6 ft. The winds in the Papagayo Region could become 
fresh to strong Sun night and Mon.

REMAINDER OF THE AREA...

A ridge extends E-SE from high pressure centered near 33N141W to 
near the Revillagigedo Islands. The associated pressure gradient 
is supporting fresh trade winds from 10N to 17N west of 120W. 
Seas are 6-7 ft 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 S of the monsoon trough axis. 
Long-period southwesterly swell dominates the waters south of 
12N and east of 115W, in 6 to 8 ft seas. Southerly swell 
entering the area will maintain 6-8 ft seas south of 10N.

$$
Mundell