000
AXPZ20 KNHC 301546
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
1500 UTC.

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

A trough extends from 08N83W to 06N93W. The ITCZ continues from 
06N93W to 04N121W to 05.5N130W to 04N140W. Scattered moderate to
isolated strong convection is from 03N to 09N east of 88W, from 
04N to 08N between 100W and 112W, and from 03N to 10N between
112W 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 ridge extends SSE over the far NE Pacific waters 
from 30N135W to near the Revillagigedo Islands. A surface trough
is over the northern Gulf of California from 31N114W to 25N105W.
The resultant pressure gradient between the area of high pressure
and the Gulf of California trough is supporting gentle to 
moderate NW to N winds over the offshore waters of Baja 
California. Seas are in the 4-6 ft range. These conditions will 
prevail through the remainder of the forecast period.

Gulf of California: Winds will pulse to strong SW to W winds 
across far north portions of the Gulf tonight before diminishing
Wed morning. Seas across that area will be in the 5-7 ft range. 
Light to gentle winds will then prevail across most of the Gulf 
of California through the weekend. 

Gulf of Tehuantepec: Light to gentle winds and seas of 4 to 6 ft
will dominate through the remainder of the forecast period.

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 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 light to gentle 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 28N between 123W and 
139W, 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 Fri through early Sun. Combined 
seas of 8 ft or higher will generally be confined to the waters 
south of the 05N and west of 113W.

$$
Formosa