000
AXPZ20 KNHC 282159
TWDEP 

Tropical Weather Discussion 
NWS National Hurricane Center Miami FL
2205 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 1800 UTC surface analysis and satellite imagery through 
2145 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 just seaward of 250 
nm for the next several days with the pressure gradient forecast 
to relax late this weekend. Fresh to strong northwest flow 
currently observed across the open 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 as the associated seas subside to 
less than 8 ft on Wed night. 

Gulf of California:  Light to gentle southerly winds forecast 
for tonight and Sun are expected to increase to a fresh to 
strong southwest breeze along 30N on Sun night into Mon morning, 
and again from Mon evening through Tue evening, with seas 
building to a maximum of 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 are expected though Sun night, with fresh to locally 
strong nocturnal drainage flow then forecast to resume on Mon 
night.
  
Gulf of Panama: Gentle nocturnal flow is forecast for the next 
several nights.

Elsewhere, light to gentle winds will 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, then moderate trades are forecast during the 
remainder of next week. 
   
$$
Nelson