000
AXPZ20 KNHC 210225
TWDEP 

Tropical Weather Discussion 
NWS National Hurricane Center Miami FL
0405 UTC Sun May 21 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 begins at a 1007 mb surface low along the 
Caribbean coast of Colombia near 10N76W, extends west across 
Central America to 09N80W, lifts NW to 12N96W, then through 
08N107W to 07N119W, where it transitions to the ITCZ and then 
continues to beyond 04N140W. 

Scattered moderate to strong convection is noted from 06N to 12N 
between 79W and 96W.
  
...DISCUSSION...   

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

The pressure gradient associated with a high west of California 
near 40N134W supports moderate northwest winds west of the Baja 
peninsula through Tuesday, with seas of 3-5 ft in NW swell. 

Gulf of California: Gentle NW flow becomes light and variable 
late tonight, with light winds continuing through Tuesday.

Gulf of Tehuantepec: Light and variable winds are expected 
through Wednesday. 

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

Expect light and variable winds north of 07N through Wednesday, 
with combined seas of 4-7 ft primarily in sw swell. Moderate 
southerly flow is expected south of 07N through the middle of 
next week, with combined seas of 6-9 ft in long period S swell.

REMAINDER OF THE AREA...
  
A ridge will meander from near 32N140W to near 12N104W through 
Wednesday. Moderate anticyclonic flow with combined seas of 4-6 
ft is expected through late Monday. A weak trough will sweep 
eastward across the waters north of 30N Monday night and 
Tuesday. Cross-equatorial southerly swell to 8 ft will prevail 
elsewhere south of 10N east of 110W through Sunday evening, then 
gradually subside to less than 8 ft Sunday night and Monday.

$$
Mundell