000
AXPZ20 KNHC 200230
TWDEP 

Tropical Weather Discussion 
NWS National Hurricane Center Miami FL
0405 UTC Sat May 20 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 0000 UTC surface analysis and satellite imagery through 
0200 UTC.

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

The monsoon trough extends from 09N84W to 11N95W to 11N110W to 
07N129W, then the ITCZ continues to beyond 05N140W. Scattered 
moderate isolated strong convection is noted from 06N to 10N 
between 88W and 111W. 

...DISCUSSION...   

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A weakening pressure gradient will support gentle to moderate NW 
winds west of Baja California through the 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, 
reversing to become 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 benign ridge will meander from near 32N140W to near 12N104W 
through the weekend. Fresh N to NE winds and seas of 5 to 8 ft 
are expected north of 28N through Sunday, becoming moderate with 
4 to 7 ft seas Monday. Moderate N to NE winds and 4 to 6 ft seas 
are expected elsewhere north of the ITCZ through the weekend.

$$
Mundell