000
AXPZ20 KNHC 260934
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
716 UTC Sat May 26 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 0600 UTC surface analysis and satellite imagery through
0845 UTC. 
  
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 

The monsoon trough extends from 13N89W to 09N99W to 09N105W, 
then transitions to the ITCZ which continues to 07N124W to 
10N130W. The ITCZ resumes from 10N134W to 08N137W to beyond 
08N140W. Scattered moderate and isolated strong convection is 
noted from 07N to 10N between 93W and 100W and 06N to 09N 
between 120W and 125W.

Convergent low-level winds to the SE of the monsoon trough are 
generating scattered moderate and isolated strong convection from
03N to 08N between 76W and 79W and within 90 nm either side of a
line from 07N81W to 09N87W.

...DISCUSSION...

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A strengthening ridge extends SE into the region from a 1032 mb 
high centered near 35N145W to the Revillagigedo Islands. Fresh to
locally strong NW to N winds across the offshore waters of Baja 
California will persist through Sun. Seas across this area will 
run between 6 and 9 ft during this time frame.
  
Gulf of California: A fresh W to SW breeze is expected N of 29N 
tonight in response to a passing low pressure trough. Gentle to 
moderate NW winds will prevail across the central and southern 
Gulf through Sunday, with strong afternoon through evening sea 
breezes recurring along the Mexican coastline from Mazatlan to 
Guaymas each of the next few days.

Gulf of Tehuantepec: Moderate to locally fresh nocturnal 
drainage flow is expected this morning, then light to moderate 
onshore flow is expected through Sun night.
  
OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND 
WITHIN 750 NM OF ECUADOR... 

The monsoon trough is displaced N of its climatological position
in response to broad low pressure that has formed over the 
Yucatan peninsula and Central America. This pressure pattern will
support light to moderate SW to W winds and 4 to 6 ft seas for 
the waters west of Central America through Tue.
 
REMAINDER OF THE AREA...
   
NW swell associated with a dissipated frontal boundary will 
remain high enough to maintain seas above 8 ft for the waters N 
of 24N W of 136W this morning.

Elsewhere, the ridge building over the north central Pacific is 
producing a modest pressure gradient across the trade wind belt, 
with moderate to fresh winds observed in satellite-derived wind 
data from 10N to 20N to the west of 120W. A 1011 mb low pressure 
center was seen in infrared satellite imagery near 11.5N132W. A 
broad area of fresh NE winds and seas to 9 ft is evident near the
low from 10N to 15N between 128W and 138W. The low will weaken 
to a trough by this evening as it translates westward. Meanwhile 
the expansive high centered over the central Pacific will shift E
over the NE Pacific, and maintain fresh trade winds and seas 
from 7 to 9 ft across the trade wind belt through Tue.
  
$$
CAM