000
AXPZ20 KNHC 161427
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 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 1200 UTC surface analysis and satellite imagery through
1420 UTC.

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

A surface trough extends from 08N78W to 01N108W. The ITCZ 
extends from 01N108W to 00N140W. Scattered moderate convection 
is noted from 00N to 05N between 88W and 91W, from 00N to 03N
between 100W and 107W, and from 02N to 08N between 110W and 120W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A cold front extends from the central Gulf of California to 
waters offshore the Baja California peninsula. Moderate to fresh
winds are noted N of the front over the Gulf of California, and
light to gentle over the remainder of the Gulf. Gentle to
moderate winds are found west of the Baja California peninsula.
Fresh to strong winds are noted in the Gulf of Tehuantepec. Light
to gentle winds prevail elsewhere across the open waters off
Mexico. Seas are in the 6-8 ft range over the Gulf of Tehuantepec
and 4-5 ft over the remainder of the open waters off Mexico. Over
the northern Gulf of California, seas are in the 2-4 ft range,
and 1-3 ft elsewhere. 

For the forecast, the cold front will dissipate today. In the 
wake of the front, moderate to fresh NW to N winds are expected 
offshore Baja California into tonight before diminishing 
slightly. Strong gap winds in the Gulf of Tehuantepec will 
diminish today. 

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 1020 mb is analyzed near 22N125W. A stationary 
front extends from 26N120W to 28N130W, where it transitions to a
warm front that continues to 30N138W. Moderate to fresh winds 
are on either side of the boundary. Seas in these areas of winds
are 6 to 7 ft. 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, the stationary front will lift N as a warm 
front due to low pressure W of the area. This low and warm front 
will impact the far NW waters with fresh to occasionally strong 
winds and seas of 7 ft through tonight. These conditions are 
forecast to diminish tonight as the low pressure and warm front 
weaken. High pressure will build along 23N to 24N this weekend.

$$
AL