000
AXPZ20 KNHC 192125
TWDEP 

Tropical Weather Discussion 
NWS National Hurricane Center Miami FL
2205 UTC Fri May 19 2017

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 1800 UTC surface analysis and satellite imagery through 
2100 UTC.

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

The monsoon trough extends from 10N85W to 10N106W to 07N120W, 
where scatterometer winds indicate that the ITCZ forms and 
continues sw to beyond 05N140W. Scattered moderate isolated 
strong convection is noted from 06N to 10N between 87W and 110W. 

...DISCUSSION...   

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A weakening pressure gradient supports gentle to moderate NW 
winds west of Baja California through the upcoming weekend with 
combined seas of 3 to 6 ft in NW swell. 

Gulf of California: Moderate NW flow is expected through early 
Sunday across the northern gulf, and light SW flow will prevail 
across the entire gulf by late Sun night.

Gulf of Tehuantepec: Light southerly flow is expected through 
the weekend. 

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

Gentle onshore breezes are expected north of 07N during the day, 
becoming offshore along the coast at night. Combined seas of 4 
to 7 ft primarily in SW swell will continue the next several 
days. Moderate southerly flow is expected through the weekend 
south of 07N, with combined seas of 5 to 8 ft in S swell.

REMAINDER OF THE AREA...
  
A ridge will meander from near 32N140W to near 12N104W. Fresh N 
to NE winds and seas of 5 to 8 ft are expected north of 28N 
through early Sunday, and moderate flow with 4 to 7 ft seas 
expected through Monday. Mostly moderate N to NE winds and 4 to 
6 ft seas are expected elsewhere north of the ITCZ through the 
weekend.

$$
Mundell