000
AXPZ20 KNHC 020255
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Sun Jun 2 2019

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
0245 UTC.

...SPECIAL FEATURES...

...Locally Heavy Rainfall to continue over portions of
southeastern Mexico...

A large, low-level cyclonic circulation called a Central American
Gyre will persist across southern Mexico, Central America, and 
the far eastern Pacific for the next several days. Locally heavy 
rainfall is likely to continue over portions of southeastern 
Mexico during the next several days as deep moisture continues to
stream northeastward from the far eastern Pacific to over this
section of Mexico. Please refer to your local meteorological 
service for more details. 

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

The monsoon trough axis extends across Central America and 
southern Mexico, then passes through the coastal areas of 
Guerrero near 16N99W to a 1008 mb low near 15N95W. From there it 
continues to 10N101W and to 09N110W, where scatterometer data 
from Sat afternoon indicated that it transitions to the ITCZ to 
09N121W to 06N128W and to beyond 06N140W. Scattered moderate 
isolated strong convection is within 60 nm south of the ITCZ 
between 132W and 136W and within 30 nm south of the trough 
between 113W and 117W.

...DISCUSSION...

OFFSHORE WATERS WITHIN 250 NM OF MEXICO... 

Weak high pressure is maintaining gentle to moderate winds and 4
to 6 feet seas across open waters off Mexico.

A trough moving across Baja California Norte and the Gulf of 
California tonight will bring fresh to strong south to southwest 
winds over the northern part of the Gulf of California through 
late Sun afternoon. Fresh northwest winds will continue to pulse 
off Los Cabos through early next week. Low pressure of 1008 mb 
is along the monsoon trough at 16N99W. Models suggest that this 
low will remain nearly stationary through most of Sun. A weak 
low may form to the west of this one near 14N100W late Sun or 
Mon.

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

Gentle to moderate southwest winds and seas of 5-7 ft are noted 
across the offshore forecast waters of Central America. These 
marine conditions will persist into Mon. Farther south, 
seas will build to 8 ft due to a southwest between Ecuador and 
the Galapagos Islands tonight and persist through Tue. Seas will 
briefly subside Tue night and Wed before another set of southwest
approaches the Galapagos Islands Wed night.

REMAINDER OF THE AREA... 

A ridge extends from a 1027 mb high center located northwest of 
the area at 34N143W southeastward to the Revillagigedo Islands. 
This system is producing mainly moderate to fresh northeast to 
east winds across the waters W of 125W. Altimeter data from Sat 
afternoon revealed seas in the 7-8 ft range from 08N to 12N and 
west of 135W. The high pressure will remain nearly stationary 
through early next week while slightly weakening. As a result, 
the aerial extent and strength of the trades will decrease. 
Northwest swell building seas to a peak of 8 ft is propagating 
through the waters north of 29N between 125W and 132W. This 
swell will decay by early Sun evening allowing for these seas to 
lower below 8 ft.

$$
Aguirre