000
AXPZ20 KNHC 140921
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0920 UTC Wed Jun 14 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 0600 UTC surface analysis and satellite imagery through
0715 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 
The Monsoon Trough extends from 08N78W to a 1010 mb low near
10N89W to 10N102W to 07N115W to 06N129W. The ITCZ axis extends 
from 06N129W to a 1010 mb low near 09N135W to 07N140W. Scattered 
moderate and isolated strong convection is from 06N to 15N 
between 87W and 94W...and from 05N to 08N between 94W and 100W. 
Scattered moderate convection is from 05N to 08N between 104W and
115W.

...DISCUSSION...   

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...
A ridge axis extends across the EPAC waters W of the offshore 
zones from a 1027 mb high centered near 34N139W to 19N120W... 
with the associated pressure gradient currently supporting
moderate to fresh NW winds across the offshore waters N of
20N...including to the W of the Baja California peninsula. As 
the gradient relaxes by Thu...gentle to moderate NW flow will 
result W of the entire Baja Peninsula through Sun night...except
increasing to an occasional fresh breeze across the coastal 
waters along the central Baja peninsula during the evenings. 

Gulf of California: Moderate NW flow is forecast across the 
central waters of the Gulf of California through Wed night. 
Light and variable winds forecast elsewhere. 
  
Gulf of Tehuantepec: Light northerly drainage flow expected 
through Sat morning with moderate N winds forecast on Sat and 
Sun nights.

Mexican offshore waters elsewhere S of 23N: Light to gentle SW 
to W flow...and 3 to 5 seas forecast through Sat. Seas will then
forecast to build to 5 to 8 ft in long period SW swell across 
the waters to the S of 14N on Sat night and Sun.

OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND 
WITHIN 750 NM OF ECUADOR...
Light to gentle SW to W flow and 3 to 5 ft seas are forecast 
across the offshore waters to the N of 07N through Wed night.
Thereafter...seas are expected to build into a range of 5 to 7 ft
as SW flow increases into a moderate breeze through Sat night. 
Moderate to locally fresh southerly flow with 4 to 6 ft seas... 
currently observed to the S of 07N...will persist through Fri. By
Fri night into Sat...long period SW swell will begin impacting
the region building seas 7 to 9 ft expected through Sun.

REMAINDER OF THE AREA...
A ridge axis extends from 34N139W SE to near 19N120W. A surface 
high will shift into the area near 32N136W on Thu...where it 
will meander through Fri...with a ridge extending SE to near 
12N120W. Moderate to fresh anticyclonic flow is forecast across 
the area through early Fri when fresh to strong N to NE winds 
will spread S into the waters to the N of 27N W of 120W and 
continue through early Sun with seas building to 9 ft. Cross 
equatorial SW swell in the form of 7 to 9 ft seas will spread N 
of the Equator between 85W and 115W on Fri evening. Expect 7 to 
9 ft seas across the tropics to the E of 120W on Sat and Sun.

$$
HUFFMAN