000
AXPZ20 KNHC 011557
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1309 UTC Sat Apr 1 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 1200 UTC surface analysis and satellite imagery through
1500 UTC.

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

The ITCZ is located south of the equator. 

...DISCUSSION...   

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

High pressure of 1033 mb centered north of the area near 36N138W
ridges southeastward past the Revillagigedo Islands to near 
12N105W. Moderate to fresh winds prevail off the west coast of 
Baja California Norte while gentle to moderate winds prevail off 
the coast of Baja California Sur. Light to gentle winds are 
evident elsewhere over the forecast waters. Seas of 8-10 ft are 
present off the west coast of Baja California Norte, 6-8 ft off 
the coast of Baja California Sur, 3 ft or less over the Gulf of 
California, and 4-7 ft over the remainder of the forecast waters.
 
Seas will subside until Sunday as NW swell continue to decay. 
Seas will decrease to around 8 ft west of Baja California Norte, 
then another set of northwest swell will cause seas to build to 
the 10 to 12 ft range over this area on Monday. Seas off Baja 
California Sur will build from 6 to 8 ft to between 7 and 9 ft by
the middle of next week. 

Looking ahead, a cold front will cross the Gulf of Mexico late 
next week. High pressure building southward behind the cold front
could produce near gale to gale force winds in the Gulf of 
Tehuantepec Thursday night and Friday.

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

Light to gentle winds and seas in the 3-6 ft range will prevail 
over the forecast waters through the middle of next week.

REMAINDER OF THE AREA...

High pressure prevails over the northern waters. The pressure 
gradient between the high and lower pressure near the equator is
generating moderate to fresh winds over the trade wind belt north
of 07N and west of 120W. Seas within this area range between 7 
and 9 ft as long period northwest swell mix with shorter period 
northeast wind waves. 

Another round of large NW swell will reach the NW part of the 
forecast area tonight. These swell will propagate southeastward 
through early next week. Seas associated with this swell event 
will peak around 14 ft over the northern waters near 30N131W 
Sunday before subsiding. Yet another round of NW swell appears to
be in the offing for Wednesday night through Thursday night as a
cold front stalls near 30N140W.

$$
cam