000
AXPZ20 KNHC 270830
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Mon Nov 27 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 0600 UTC surface analysis and satellite imagery through
0830 UTC.

...SPECIAL FEATURES...

Gulf of Tehuantepec Gale Warning: A cold front is moving across
the Gulf of Mexico. High pressure building across the eastern 
slopes of Mexico in the wake of the front has started to tighten
the pressure gradient across the Tehuantepec area. Strong to 
near gale force winds in the Gulf will persist through Wed. 
Winds are expected to reach gale force tonight through Tue night.
Seas will peak near 12 ft with this event. Please read the 
latest HIGH SEAS FORECAST issued by the National Hurricane Center
at website https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for 
more details.

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

The monsoon trough extends from 09N84W to 09N94W to 11N110W to 
09N124W. The ITCZ continues from 09N124W to 08N140W. Scattered 
moderate isolated strong convection is noted from 07N to 19N 
between 95W and 111W.  

...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Please see above for more on an upcoming Gulf of Tehuantepec
gale-force gap wind event. 

Elsewhere, moderate to fresh winds are noted over the northern 
Gulf of California, with gentle to locally moderate winds over 
the southern Gulf. Light to gentle winds prevail elsewhere, 
though reaching moderate speeds over the outer portion of the 
offshore zones off southern and SW Mexico. Seas are in the 8-9 ft
range in NW swell west of the Baja California peninsula, 
extending SW to the Revillagigedo Islands. Seas of 4-6 ft prevail
elsewhere over the open waters off Mexico. Over the Gulf of 
California, seas of 4-5 ft are found over the northern Gulf, and 
2-3 ft over the southern Gulf. 

For the forecast, high pressure building across the eastern 
slopes of Mexico will support strong to near-gale force gap winds
over the Gulf of Tehuantepec through Wed. Winds will reach gale-
force over these waters tonight through Tue night. NW swell over
the waters west of Baja California, and SW to the Revillagigedo 
Islands, will start to subside today. 

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

Fresh to strong gap winds are over the Gulf of Papagayo, with 
fresh winds extending downwind of the Gulf. Light to gentle 
winds are elsewhere north of the monsoon trough. Gentle to 
locally moderate winds are noted between Ecuador and the 
Galapagos Islands. Light to gentle winds prevail elsewhere S of 
the monsoon trough. Seas of 4-5 ft prevail, except 5-6 ft in the 
Papagayo region.

For the forecast, moderate to fresh winds are expected across 
and well downstream of the Gulf of Papagayo region through at 
least Wed night, pulsing to strong speeds each night. Gentle 
winds south of the monsoon trough will increase to moderate to 
locally fresh speeds between Ecuador and the Galapagos Islands 
today through Tue night. 

...REMAINDER OF THE AREA...

The remnant low of Ramon is near 14N125W. Fresh winds are noted 
within 30 nm N semicircle of the low. Gentle to moderate winds 
are elsewhere N of the monsoon trough/ITCZ to 23N. Light to
gentle winds are N of 23N. Light to gentle winds are noted S of 
the monsoon trough, with gentle to moderate winds S of the ITCZ.
NW swell dominates the discussion waters W of 120W, with seas in
the 8-11 ft range. Seas of 5-7 ft are noted elsewhere. 

For the forecast, the NW swell will continue to propagate 
southeastward, with seas greater than 8 ft covering much of the 
waters west of 115W through Mon night before starting to 
gradually subside.

$$
AL