000
AXPZ20 KNHC 040843
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
743 UTC Sat Apr 4 2020

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
0840 UTC.

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

A trough extends from 07N78W TO 06N86W. The ITCZ continues from 
06N86W to 04N96W to 05N140W. Scattered moderate convection is 
noted from 03N to 05N between 92W and 98W. Scattered moderate 
convection is noted from 06N to 09N between 120W and 132W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A surface ridge extends from 1029 mb high pressure near 33N140W 
to the Revillagigedo Islands. The pressure gradient between this 
ridge and a surface trough over the Gulf of California is 
supporting gentle to moderate NW winds off Baja California. Light
S to SW winds persist across most of the Gulf of California, and
light to gentle winds prevail in the Gulf of Tehuantepec. Seas 
of 8 to 9 ft in NW swell prevails well off the coast north of 
Punta Eugenia and extend into the offshore zones within 120 nm of
the coast. Farther south, seas of 4 to 6 ft in a mix of NW and 
SW swell prevail. 

Low pressure will form north of the area over southern 
California early next week. An associated cold front will slowly 
approach Baja California and the Gulf of California through Tue. 
Fresh to strong SW winds will pulse into into the northern Gulf 
of California ahead of the front Sun night and Mon night. 
Otherwise generally quiescent conditions will persist across the 
offshore waters of Mexico.

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

Rather quiet conditions are observed over the Central American 
and equatorial waters, with light to gentle winds and seas in the
3-5 ft range prevailing. These conditions are expected to change
little through tonight. Early next week, a western Caribbean 
high pressure ridge is forecast to build southward. This will 
tighten the pressure gradient over the area and produce fresh to 
strong northeast to east gap winds in the Gulf of Papagayo 
region. Long- period southwest swell will reach the waters 
between Ecuador and the Galapagos Islands on Sun. 

REMAINDER OF THE AREA...

High pressure of 1029 mb is centered well north of the area near
33N140W. The pressure gradient between the area of high pressure
and lower pressure in the vicinity of the ITCZ is supporting 
fresh to strong winds, and seas in the 8-11 ft range north of the
ITCZ to near 15N and west of 130W. Gentle to moderate winds, and
seas of 5-7 ft, prevail elsewhere.

Fresh to strong trades, and seas in the 8 to 11 ft range will
prevail today. The area of high pressure will weaken and shift 
westward Sun. This will enable a frontal boundary to move into 
the waters north of 25N Sun into early next week. The pressure 
gradient will loosen as the area of high pressure weakens. This 
will diminish trade winds to the moderate range, and associated 
seas will decrease over the tropical waters Sun through Tue. 
Fresh trade winds will return toward mid week as high pressure 
builds in the wake of the front.

$$
AL