000
AXPZ20 KNHC 090345
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0345 UTC Mon Jul 9 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 0000 UTC surface analysis and satellite imagery through
0300 UTC. 

...TROPICAL WAVES...

.A tropical wave is analyzed from 06N106W to 18N104W moving W at
10 to 15 kt. Scattered moderate and isolated strong convection 
are observed S of 11N within 180 nm of either side of the wave 
axis.

.A tropical wave is analyzed from 07N116W to 19N113W moving W at
10 to 15 kt. Scattered moderate to strong convection is observed
from 06N to 12N between 112W and 120W. 

.A tropical wave is analyzed from 07N127W to 18N124W moving W at
10 to 15 kt. Scattered moderate convection is observed from 06N
to 12N between 125W and 130W. 

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

The monsoon trough extends from 07N77W to 07N90W to 07N103W. The
ITCZ begins near 08N108W and extends to 09N114W, then resumes
from 09N118W to 09N125W, then resumes again from 09N130W to
beyond 09N140W. Aside from convection associated with the
tropical waves, scattered moderate and isolated strong are within
90 nm N of the monsoon trough axis between 92W and 102W, from 06N
to 10N between 120W and 124W, and from 08N to 13N W of 134W. 
  
...DISCUSSION...

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Gulf of Tehuantepec: High pressure north of the region along with
nocturnal drainage flow will support strong northerly winds with
seas up to 9 ft tonight. The high will strengthen Mon through 
Wed night which will help increase the nocturnal winds to near 
gale force, with fresh to strong winds lingering into the daytime
hours.
  
A surface trough extends across Baja California, while another 
surface trough is west of Baja California extending from 30N119W
to 21N120W. These troughs support a weak pressure pattern N of 
15N W of 97W across the offshore waters promoting mainly gentle 
winds. The trough W of Baja California is expected to drift very
slowly westward the next couple of days, which will help 
maintain the weak flow over the region. 
  
Gulf of California: Light to gentle southerly flow expected 
for the next 48 hours.    

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

Gulf of Papagayo: Strong nocturnal offshore winds, with seas to 
8 ft, will occur across and within 150 nm downstream of the Gulf 
of Papagayo through sunrise on Tue.

Gentle to occasionally moderate easterly winds are forecast 
elsewhere north of the monsoon trough which is meandering 
between 06N and 09N. Moderate southerly winds are forecast south 
of the monsoon trough this week with 5 to 8 ft seas primarily 
due to cross-equatorial southerly swell which will subside to 4 
to 7 ft on Mon evening.  
  
REMAINDER OF THE AREA...
   
The post-tropical remnant low of Fabio is centered near 27N139W,
moving W-NW. Associated winds have diminished to 20 kt or less. 
An area of 7 to 10 ft seas across the forecast waters NW of the 
low center will subside to less than 8 ft overnight. 

A surface trough that extends from 30N119W to 21N120W will drift
very slowly west the next couple of days. Fresh northerly winds,
and 7 to 9 ft seas currently observed N of 28N within 270 nm W 
of the trough, will diminish across the waters S of 30N on Mon, 
but spread back S of 30N on Tue night. 
  
Cross equatorial swell combined with swell propagating W from 
the Gulf of Papagayo will support 7 to 9 ft S of 12N between 80W 
and 102W through late Mon. 
  
$$
Latto