000
AXPZ20 KNHC 092048
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2205 UTC Tue Nov 9 2021

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
2040 UTC.

...SPECIAL FEATURES...

TD Sandra has degenerated into the remnant low. The remnant low 
of Sandra is centered near 14.2N 122.2W at 09/2100 UTC moving W 
at 14 kt. Estimated minimum central pressure is 1010 mb. Maximum 
sustained wind speed is 25 kt with gusts to 35 kt. Widely 
scattered moderate isolated strong convection is noted from 10N 
TO 17N between 117W AND 124W. Please read the latest NHC Public 
Advisory at https://www.nhc.noaa.gov/text/MIATCPEP4.shtml and 
Forecast/ Advisory at 
https://www.nhc.noaa.gov/text/MIATCMEP4.shtml for more details.

Tropical Depression Terry is centered near 11.6N 113.0W at
09/2100 UTC moving W at 12 kt. Estimated minimum central
pressure is 1008 mb. Maximum sustained wind speed is 25 kt with
gusts to 35 kt. Scattered moderate isolated strong convection is
noted from 10N to 16N between 110W and 115W. Terry is expected 
to continue on a westward track, and slowly weaken to a remnant 
low by Thu. Please read the latest NHC Public Advisory at 
https://www.nhc.noaa.gov/text/MIATCPEP3.shtml and Forecast/ 
Advisory at https://www.nhc.noaa.gov/text/MIATCMEP3.shtml for 
more details.

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

The monsoon trough extends from 09N84W to 07N102W. The ITCZ
extends from 10N124W to beyond 08N140W. Scattered moderate and
isolated strong convection is noted N OF 02N E of 83W. Scattered
moderate convection is noted from 04N to 07N between 86W and 
100W, and from 10N to 12N between 125W and 130W. 

OFFSHORE WATERS WITHIN 250 NM OF MEXICO

Strong winds, and seas to 9 ft, prevail over the Gulf of 
Tehuantepec Elsewhere, a surface ridge extends W of the Baja 
California peninsula. The pressure gradient between the ridge and
a trough over the Gulf of California is supporting gentle to
moderate winds. Light to gentle winds prevail elsewhere across
the open waters off Mexico as well as over the Gulf of
California. Seas are in the 7-8 ft range off Baja California
Norte, and 6-7 ft elsewhere over the open waters off Mexico. Seas
are in the 1-3 ft range in the Gulf of California.

Strong gap winds will prevail across the Gulf of Tehuantepec 
through early Wed, pulsing to just below gale force tonight. 
winds will become fresh tonight through early Thu over the waters
west of Baja California, except for strong winds gradually 
spreading S to offshore of Cabo San Lazaro through Wed evening. 
Moderate N winds inside the Gulf of California will become fresh 
Wed afternoon through Thu afternoon. Strong gap winds will return
to Tehuantepec Fri through Sun. 

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

The pressure gradient between high pressure over the SE United
States and the eastern Pacific monsoon trough is supporting 
moderate to fresh gap winds across the Papagayo region, and 
moderate gap winds across the Gulf of Fonseca. Elsewhere light 
to gentle winds NE are N of the monsoon trough. Gentle to 
moderate SW to S winds prevail S of the monsoon trough. Seas of 
5-6 ft prevail in SW swell across the discussion waters, except
reaching near 8 ft over the Gulf of Papagayo.

Fresh to strong gap winds will continue over the Gulf of 
Papagayo through midday Wed before diminishing through the 
remainder of the week. Gentle to moderate S to SW winds will 
persist south of the monsoon through the forecast period. 

REMAINDER OF THE AREA...

Please see special features section above for more on T.D. 
Terry and the remnant low of Sandra.

The pressure gradient between 1025 mb high pressure near 27N127W
and lower pressure within the monsoon trough and in the vicinity
of the ITCZ is supporting moderate to fresh NE to E winds N of 
the ITCZ and monsoon trough to near 20N and W of 115W, with 
gentle to moderate winds N of 20N. Gentle to moderate winds 
prevail south of the monsoon trough and ITCZ. Seas are in the 7-9
ft range in mixed NW and NE swell over the waters north of 10N 
and west 115W. Seas in the 6-8 ft range prevail elsewhere.

High pressure will remain across the northern waters, 
maintaining a zone of fresh trade winds S of 20N throughout most 
of the week. The remnants of Sandra will move westward through 
the trade wind zone to produce a broad area of strong trades and 
seas to around 10 ft.
 
$$
AL