232 
AXPZ20 KNHC 182205
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2205 UTC Fri Nov 18 2022

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.

...SPECIAL FEATURES...

Gulf of Tehuantepec Gale Warning: Gale-force winds prevail 
across the Gulf of Tehuantepec along with seas to 11 ft. Winds 
are expected to diminish below gale force by early Sat morning or
late tonight as northerly winds in the Bay of Campeche 
diminish. Fresh to near gale force winds will prevail on Sat and
increase again to gale force Sun morning, continuing into Tue 
morning. Seas during the second gale event will build to 14 ft. 
For further details, please see the latest NWS High Seas Forecast
issued by the National Hurricane Center at 
https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml.

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

The monsoon trough extends from 08N83W to 10N100W to 10N127W. 
The ITCZ continues from 10N127W to 09N136W. Scattered moderate 
convection is from 08N to 15N between 99W and 120W, from 08N to
12N W of 120W and N of 03N E of 83W, including the Gulf of 
Panama and offshore Colombia.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Refer to Special Features section above for details on a Gale 
Warning currently in effect for the Gulf of Tehuantepec.

Elsewhere, a weak pressure gradient across the region is supporting
gentle to locally moderate NW winds along with 5 ft seas, except
for 3 ft in the Gulf of California. 

For the forecast, gale-force winds will continue across the Gulf
of Tehuantepec through tonight, then return on Sun continuing
through Tue. Strong high pressure will build across the Great
Basin on Sat morning, increasing the NW winds across the northern
Gulf of California to fresh to strong with building seas to 5 ft.
Moderate to fresh NW winds will extend to the entrance of the 
gulf Sat evening and prevail through early Tue morning. Gentle to
locally moderate winds are forecast to remain elsewhere. 

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

Moderate to fresh gap winds are ongoing in the Papagayo region 
with seas to 5 ft. Elsewhere, gentle to moderate S to SW winds 
are across the Central and South America offshore waters south of
the monsoon trough with 3 to 5 ft in SW swell. Gentle variable 
winds and slight seas prevail elsewhere N of the monsoon trough.

For the forecast, moderate to fresh easterly NE to E winds will
persist across the Gulf of Papagayo and coast of Nicaragua
through early next week, increasing to strong speeds at night. 
Wave heights will likely build to 7 ft beyond 90 nm off Guatemala
through the weekend due to swell generated from gale force gap 
winds nearby in the Gulf of Tehuantepec. Gentle to moderate winds
will persist elsewhere through the forecast period along with 
slight to moderate seas. 

REMAINDER OF THE AREA...

Broad surface ridging persists north of 15N and W of 113W, supporting
moderate to fresh trade winds from 12N to 24N west of 120W, with
7 to 9 ft wave heights. NW swell W of 130W is leading to seas of
8 to 10 ft N of 24N. 

For the forecast, moderate to fresh easterly winds will prevail 
into early next week across most of the basin as a reinforcing 
NW swell moves in. Seas will build to 9 ft near the ITCZ west of 
125W as high pressure north of the area supports a broad area of
fresh trade winds, and mixes with the decaying long-period 
swell. SW swell will support seas building to 9 ft along and 
south of 03.5S tonight into Sat.

$$
Ramos