000
AXPZ20 KNHC 301432
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1259 UTC Tue Apr 30 2019

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
1515 UTC.

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

A trough extends from 07N83W to 06N93W. The ITCZ continues from 
06N93W to 05N117W to 05N130W to 04N140W. Scattered moderate to 
isolated strong convection is from 02N to 10N east of 89W, and 
from 03N to 10N between 102W and 127W. Scattered moderate to
strong convection is from 01N to 08N west OF 136W.

...DISCUSSION...

OFFSHORE WATERS WITHIN 250 NM OF MEXICO... 

High pressure extends from the far NE Pacific waters SSE to just 
west of the Revillagigedo Islands. Latest scatterometer data 
shows a surface trough over the northern Gulf of California N of
25N. The resultant pressure gradient between the area of high 
pressure and the elongated area of low pressure just east of Baja
California Norte is supporting gentle to moderate NW to N winds 
over the offshore waters of Baja California, increasing to fresh 
near the coastline during nightime hours. Seas with these winds 
will be in the 4-6 ft range. These conditions will prevail 
through the weekend.

Gulf of California: Strong SW to W winds across far north 
portions of the Gulf will resume tonight morning before 
diminishing Wed morning. Seas across that area will build to 5-7 
ft. Light to gentle winds will then prevail across most of the 
Gulf of California through the weekend. 

Gulf of Tehuantepec: Light to gentle variable winds and seas of 
4 to 6 ft will dominate through the weekend.

Ongoing agricultural burning, which are normally carried on 
during this time of year in SE Mexico and Central America, is 
generating smoke leading to hazy conditions along and adjacent 
to the coast of Central America and the coast of central Mexico, 
from Guerrero to the Gulf of Tehuantepec. 

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

Gulf of Papagayo: Fresh to strong NE to E winds will pulse 
during the evening and morning hours over the Gulf of Papagayo 
region through Thu morning.

Gulf of Panama: Moderate N winds will pulse during the evening 
and morning hours over the Gulf of Panama through Thu morning. 
Then, winds will become variable light to gentle, continuing 
through Sun. 

Ongoing agricultural burning, which are normally carried on 
during this time of year in SE Mexico and Central America, is 
generating smoke leading to hazy conditions from the Gulf of
Tehuantepec to Nicaragua. 

REMAINDER OF THE AREA...

High pressure prevails over the northern waters, extending from 
a narrow ridge centered across the far NE Pacific waters SSE to 
just west of the Revillagigedo Islands. The pressure gradient 
between the high pressure and lower pressure in the vicinity of 
the ITCZ is supporting moderate to fresh tradewinds N of the 
ITCZ to near 20N and west of 115W. Combined seas of 6-7 ft are 
over these waters in a mix of NW and SW swell and tradewind 
waves. These conditions will prevail through the remainder of 
the week. 

N swell is producing seas of 8-9 ft N of 29N between 123W and 
130W, however seas are expected to subside below 8 ft later this
evening. Cross-equatorial SW swell will propagate through much 
of the forecast area east of 120W Thu afternoon through early 
Sun. Combined seas of 8 ft or higher will generally be confined 
to the waters south of the 04N and west of 100W.

$$
Formosa