000
AXPZ20 KNHC 132040
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2205 UTC Sat Mar 13 2021

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
2040 UTC.

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

A surface trough extends from 05N89W to 03N95W. The ITCZ 
continues from 03N95W to 01N103W to 06N118W to 05N140W. Scattered
moderate isolated strong convection is noted from 01N to 05N 
between 87W and 100W, from 05N to 10N between 119W and 127W, and 
from 02N to 06N between 135W and 140W. 

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Gentle to moderate NW winds prevail west of Baja California 
Norte while fresh to strong winds are noted west of Baja 
California Sur. Fresh to locally strong winds are over the Gulf 
of Tehuantepec. Moderate winds are noted over the northern Gulf 
of California, with fresh to strong winds over the southern part 
of the Gulf of California. Mainly light to gentle winds are noted
elsewhere. Seas are 6 to 7 west of Baja California Norte and 7 
to 9 ft west of Baja California. Over the northern Gulf of
California, seas in the 1 to 3 ft range prevail, with seas in the
4 to 7 ft range over the southern Gulf of California. In the Gulf
of Tehuantepec, seas are in the 6-7 ft range, with 4-6 ft seas 
elsewhere.

Winds in the southern half of the Gulf of California will
continue in the fresh to strong range through Sun night. Strong 
to near gale- force winds are expected near Cabo Corrientes 
tonight, as high pressure builds southeast toward the area. 
Gentle to moderate winds will prevail elsewhere over the offshore
waters west of southern Mexico. A weakening cold front may 
approach waters offshore Baja California Norte Mon night.

Looking ahead, the next gale force gap wind event will be
possible starting Thursday night. 

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

Fresh to strong NE to E winds are noted within and downstream of 
the Papagayo region. Moderate to fresh winds are in and 
downstream of the Gulf of Panama. Light to gentle winds prevail 
elsewhere. Sea heights are generally 3 to 5 ft, except 6 to 8 ft 
downwind from the Gulf of Papagayo. Fresh to strong NE winds will
continue to pulse across the Papagayo region into Mon night, 
with highest winds expected during the overnight hours. Seas 
associated with these winds will be 6 to 8 ft. Fresh north winds 
in the Gulf of Panama will pulse at night into Mon night. Light 
to gentle winds, with seas in the 3 to 6 ft range, will prevail 
elsewhere through early next week.

REMAINDER OF THE AREA...

High pressure of 1032 mb is near 30N128W. The pressure gradient 
between this area of high pressure and lower pressure in the 
vicinity of the ITCZ is supporting fresh to locally strong winds 
north of the ITCZ to near 23N and west of 115W. Seas in this area
are in the 8-11 ft range. A cold front is approaching the NW 
waters. Fresh to strong southerly winds are over the far NW 
waters ahead of the front. the front will enter the NW waters 
this evening, and extend from 32N128W to 25N140W Sun. The front 
will usher in a new set of large NW swell into the area. This 
swell will move through the northern waters tonight through Mon 
night, peaking near 15 ft over the NW waters Sun. 

$$
AL