000
AXPZ20 KNHC 172151
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2205 UTC Fri Mar 17 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
2150 UTC.

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

A surface trough extends from 08N78W to 09N90W to 04N102W. The 
ITCZ extends from 03N107W to 02N121W to 00N132W. Scattered 
moderate convection is noted from 00N to 08N between 86W and 
95W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A weak pressure gradient across the region is allowing for the
continuation of gentle to locally moderate NW winds along the
Baja California offshore waters where decaying NW swell supports
seas to 4 ft. Light to gentle winds prevail elsewhere across the
S and SW waters off Mexico with seas to 4 ft. Winds of similar 
magnitude are along the Gulf of California with seas to 2 ft.

For the forecast, fresh to strong gap winds will develop in the Gulf
of Tehuantepec Sat night and continue through the middle of next
week, briefly increasing to gale-force Sun night through Mon
morning. A cold front will approach Baja California Norte on Tue
and move across the northern Gulf of California Tue night. This 
will result in the development of SW fresh to strong gap winds in
the northern Gulf of California Tue morning ahead of the front. 
Elsewhere, mostly benign marine conditions will prevail into Tue 
night. 

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 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 will pulse to moderate Sun, then increase to
fresh to strong speeds starting early Mon and continuing through
the middle of the week.

REMAINDER OF THE AREA...

High pressure of 1020 mb is analyzed near 21N136W. Moderate to 
locally fresh winds, and seas of 6-7 ft, are noted N of 24N 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 mainly 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 today. High pressure will build along 23N to 24N this 
weekend, maintaining the moderate to fresh tradewinds over the 
tradewind zone. A cold front is likely to enter the NW waters 
Mon, possibly inducing increasing winds and seas N of 25N and W 
of 130W.

$$
Ramos