000
AXPZ20 KNHC 020321
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Mon Apr 2 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.

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

A surface trough extends from 08N83W to 05N90W to 04N101W. The 
ITCZ continues from 04N101W to 06N110W to 03N120W to 05N130W to
06N140W. Scattered moderate convection is noted within 90 nm S of
trough between 85W and 91W. Similar convection is from 10N to 
12N between 112W and 116W.

...DISCUSSION...

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Gulf of Tehuantepec: Winds over the SW Gulf of Mexico have veered
to the E, decreasing winds funneling through the Chivela pass 
into the Gulf of Tehuantepec. Winds have diminished below 20 kt, 
and only a small area of lingering swell from the gap wind 
event persists afeccting the waters from 10N to 12N between 95W 
and 97W. These seas are expected to subside below 8 ft later tonight.
Marine guidance suggests that another gap wind event may occur 
across the Gulf of Tehuantepec late Wed into Thu, but winds are 
expected to remain below gale force. 

A ridge will dominate the offshore forecast waters W of Baja
California peninsula through the middle of this week producing 
mainly gentle to moderate NW-N winds and seas of 4 to 7 ft. Seas 
will slight increase to 8 ft in mixed NW and S swell N of Punta
Eugenia Mon night into Tue.

Gulf of California: Mainly light to gentle winds will prevail 
over much of the gulf the next several days, with the exception 
of gentle to moderate winds over the northern gulf today through 
Tue.

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

Gulf of Papagayo: moderate to fresh NE-E winds are expected 
through Tue, with seas of 5-8 ft. 

Gulf of Panama: moderate to fresh N-NE winds will prevail through
tonight, with seas of 4-7 ft.

Elsewhere, gentle to moderate offshore flow is generally expected
N of 09N through Tue, while light and variable winds are forecast
S of 09N.

REMAINDER OF THE AREA... 

A 1024 mb high pressure located near 37N137W extends a ridge SE 
across the forecast waters to near the Revillagigedo Islands. 
Under the influence of this system, a weak pressure pattern will
prevail over the forecast area. This will maintain mainly gentle
to moderate winds with seas less than 8 ft through Tue night.
Then, expect increasing winds and building seas across the far 
NW forecast waters on Wed, ahead of a cold front approaching from
the W. Marine guidance indicates fresh to strong southerly winds
and seas of 8-10 ft NW of a line from 30N137W to 28N140W by Wed
evening.

$$
GR