000
AXPZ20 KNHC 082103
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2205 UTC Mon Nov 8 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
2100 UTC.

...SPECIAL FEATURES...

Tropical Depression Sandra is centered near 15.5N 117.5W at
08/2100 UTC moving NW at 8 kt. Estimated minimum central
pressure is 1008 mb. Maximum sustained wind speed is 30 kt with
gusts to 40 kt. Peak seas are up to 12 ft. Scattered moderate 
isolated strong convection is noted from 10N to 18N between 111W 
and 117W. Sandra is forecast to become a remnant low by Tuesday 
evening. 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 10.5N 108.0W at
08/2100 UTC moving WNW at 13 kt. Estimated minimum central
pressure is 1007 mb. Maximum sustained wind speed is 30 kt with
gusts to 40 kt. Peak wave heights are estimated at 12 ft.
Scattered moderate and isolated strong convection is from 08N TO
13N between 103W AND 111W. Terry is expected to continue on a 
WNW track, weakening to a remnant low the middle of the week. 
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 09N87W to 06N92W to 
08N99W. The ITCZ extends from 10N126W to beyond 08N140W. 
Scattered moderate convection is noted from 04N to 08N east of
83W. 

OFFSHORE WATERS WITHIN 250 NM OF MEXICO

Winds have diminished below gale force this afternoon over the
Gulf of Tehuantepec. Elsewhere, a surface ridge extends SE to 
the W of Baja California Sur. The pressure gradient across the 
region is supporting light to gentle northerly winds across the 
waters west of the Baja California peninsula, inside the Gulf of 
California and across the SW Mexico offshore waters. Seas are in 
the 6-9 ft range in mixed swell, except for 1-3 ft in the Gulf of
California.

Strong winds will prevail across the Gulf of Tehuantepec through
early Wed. Gentle to locally moderate northerly winds are 
expected to prevail across the Baja offshore waters through Tue 
then become moderate to fresh Tue night through early Thu, except
for strong winds N of Punta Eugenia on Wed. 

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

Light to gentle winds are N of the monsoon trough and gentle to 
moderate SW to W winds prevail S of the monsoon trough. Seas of 
5-6 ft prevail in SW swell across the discussion waters.

Offshore gap winds will pulse from fresh to strong over the Gulf
of Papagayo each night for the next several days. Gentle to 
moderate SW winds will persist S of the monsoon trough. 

REMAINDER OF THE AREA...

Please see special features section above for more on T.D. Terry
and T.D. Sandra.

The pressure gradient between high pressure across the northern
waters 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 22N and W of 120W, with
gentle to moderate winds N of 24N. Gentle to moderate winds 
prevail south of the monsoon trough and ITCZ. Seas are in the 7-9
ft range in mixed NW and S swell over the waters north of 10N 
and west 115W. Seas in the 6-8 ft range prevail elsewhere.

A cold front will brush the far NW waters tonight, with fresh SW
to W winds and seas to near 9 ft across the far NW waters W of 
128W. High pressure will then settle across the northern waters 
through mid week.
 
$$
AL