000
AXPZ20 KNHC 082106
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2205 UTC Fri May 8 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 1800 UTC surface analysis and satellite imagery through
2015 UTC.

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

A surface trough extends from the Panama/Colombia border near
07N77W to 09N85W to 07N106W. The ITCZ extends from 07N106W to 
08N120W to 10N140W. Scattered moderate and isolated strong 
convection is noted within 11N86W to 08.5N77W to 03N77W to 03N95W
to 05N95W to 11N86W, within 14N106W to 14N91W to 08N92W to
08N106W to 14N106W, and within 11N130W to 11N117W to 07N114W to
04N109W to 04N126W to 07N132W to 11N130W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Haze and areas of smoke from agricultural fires in Mexico may 
reduce visibilities near the coast from the Tehuantepec region 
to near Cabo Corrientes.

Northerly winds at fresh to near gale force across the Gulf of 
Tehuantepec region will return Sat night through Mon night.

A N-S oriented ridge axis extends southward between 122W and 
145W. Gentle to moderate winds were noted on scatterometer data 
this afternoon across the entire region. Long period southerly
swell is propagating through the waters and will impact the
coastline of Mexico this weekend creating potentially hazardous
surf. Seas will be 6 to 9 ft. This swell will decay by the end 
of the weekend into early next week.

Otherwise, gentle to moderate NW winds and 3 to 5 ft seas 
persist across the offshore waters S of 20N, and 4 to 7 ft N of
20N.

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

Haze and areas of smoke from agricultural fires in Central 
America may reduce visibilities near the coasts of Costa Rica, 
El Salvador and Guatemala.

Fresh easterly winds are possible across the Papagayo region 
today. Elsewhere, gentle to moderate winds will prevail during 
the next several days.

Large long period SW swell will continue to impact the offshore
waters of Central America, Ecuador and Colombia this weekend, 
then slowly decay through early next week. The swell will reach
the coastline creating potentially hazardous surf. Seas will 
build to 8 to 10 ft with this swell event, with the highest SW of
the Galapagos Islands.

REMAINDER OF THE AREA...

A NW to SE oriented ridge axis extends from 1023 mb high pressure
near 31N134W to 13N106W. This ridge is supporting moderate trade
winds across most of the tropical Pacific north of the ITCZ. 
Seas are mainly 5 to 8 ft. Trade winds will diminish slightly
tonight as the ridge weakens due to a decaying cold front which
is currently just NW of 30N140W. NW swell associated with that 
front will reach 30N140W this evening with seas of 7 to 8 ft, 
then decay on Sat. Another cold front may reach 30N140W Sun night
or Mon with another set of NW swell arriving in its wake.

Southern Hemisphere long period SW swell is crossing the equator 
E of 130W, with seas of 8 to 11 ft expected, reaching as far
north as 13N120W this afternoon. This swell will subside across 
the tropics below 8 ft by Sun afternoon.

$$
Lewitsky