000
AXPZ20 KNHC 281552
TWDEP 

Tropical Weather Discussion 
NWS National Hurricane Center Miami FL
1605 UTC Sat Apr 28 2018 

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 1200 UTC surface analysis and satellite imagery through 
1445 UTC.
  
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 

A surface trough extends southwest from the Pacific coast of 
Costa Rica at 10N85W to 06N91W to 07N103W where scatterometer 
winds indicate that an ITCZ develops and continues west to
08N130W to 06N140W. Scattered moderate and isolated strong
convection is noted within 180 nm either side of lines from
04N77W to 08N85W to 07N118W, and from 07N121W to 06N140W.

Scattered moderate and isolated strong convection is noted
near the Gulf of Tehuantepec within 150 nm of 13N96W. 

...DISCUSSION...

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A northwest to southeast ridge will meander seaward of the 
offshore zones for the next several days with the pressure 
gradient forecast to relax somewhat during this weekend. 
Currently fresh to strong northwest flow across the 
waters N of 25N west of the Baja Peninsula will diminish to a 
moderate to locally fresh northwest breeze on Mon and further 
diminish to moderate northerly breeze by mid week with the 
associated seas subsiding to less than 8 ft on Wed night. 

Gulf of California:  Light to gentle southerly winds forecast 
tonight and Sun are expected to increase to a fresh to strong
southwest breeze along 30N on Sun night into Mon morning, and 
then from Mon evening through Tue evening, with seas building to 
only 6 ft near 30.5N113W.   

Gulf of Tehuantepec: Fresh to strong northerly winds will resume
this evening through and just downstream of the Gulf of
Tehuantepec and persist till around sunrise on Sun.

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

Gulf of Papagayo: Moderate to locally fresh northeast nocturnal 
winds expected though Sun night, with fresh to locally strong 
nocturnal drainage flow forecast to resume on Mon night.
  
Gulf of Panama: Gentle nocturnal flow forecast for the next
several nights.

Elsewhere, light to gentle winds will generally prevail through 
Mon, accompanied by 4 to 6 ft seas.

REMAINDER OF THE AREA...
   
A ridge extends from 32N138W to 13N106W. Fresh trades and 6 to
8 ft seas will continue between the ridge and the ITCZ through
Mon night with moderate trades forecast most of next week. 
   
$$
Nelson