000
AXPZ20 KNHC 162021
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2205 UTC Thu Mar 16 2023

Tropical Weather Discussion for the eastern Pacific Ocean from
03.4S to 30N, east of 120W including the Gulf of California, and
from the Equator to 30N, between 120W and 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
2020 UTC.

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

A surface trough extends from 08N78W to 04N98W. The ITCZ extends
from 04N98W to 02S140W. Scattered moderate convection is noted 
from 00N to 04N between 100W and 108W, and from 01N to 07N 
between 110W and 120W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Gentle to moderate winds are found west of the Baja California 
peninsula, as well as the Gulf of Tehuantepec. Light to gentle 
winds prevail elsewhere across the open waters off Mexico, as
well as the Gulf of California. Seas are in the 4-7 ft range 
over the Gulf of Tehuantepec and 4-5 ft over the remainder of the
open waters off Mexico. Over the Gulf of California, seas are in
the 1-3 ft range. 

For the forecast, fresh to strong gap winds will develop in the 
Gulf of Tehuantepec Sat night and continue into early next week. 
Elsewhere, mostly benign marine conditions will prevail through 
early next week.

OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND 
WITHIN 750 NM OF ECUADOR...
 
Light to gentle winds prevail over the offshore waters of 
Central America and South America. Seas are in the 3-5 ft range 
in long-period S to SW swell.

For the forecast, light to gentle winds will prevail over the
offshore waters through much of the forecast period. Winds in the
Papagayo region may pulse at times to moderate into Fri, then
increase again starting Sun night. 

REMAINDER OF THE AREA...

High pressure of 1021 mb is analyzed near 22N125W. Moderate to 
fresh winds, and seas of 6-7 ft, are noted N of 22N and W of 
125W. Elsewhere, the pressure gradient between the area of high 
pressure and lower pressure in the vicinity of the ITCZ is 
producing gentle to moderate trade winds N of the ITCZ to near 
15N and W of 120W. Light to gentle winds, and seas of 4-6 ft, 
prevail elsewhere across the discussion waters. 

For the forecast, moderate to fresh winds over the NW waters will
decrease through Fri. High pressure will build along 23N to 24N 
this weekend, maintaining the moderate to fresh tradewinds over
the tradewind zone. 

$$
AL