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Eastern North Pacific Tropical Weather Discussion


000
AXPZ20 KNHC 040327
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Fri Sep 4 2026

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 0305 UTC surface analysis and satellite imagery through
 UTC.

...SPECIAL FEATURES...

Hurricane Karina is centered near 20.1N 138.4W at 04/0300 UTC,
moving west-northwest at 8 kt. Estimated minimum central
pressure is 969 mb. Maximum sustained wind speed is 90 kt with
gusts to 110 kt. Peak seas are near 41 ft. Numerous moderate to 
isolated strong convection is noted from 18N to 22N between 136W
and 140W. The WNW motion is expected to continue over the next 
couple of days. Some weakening is forecast during the next 48 hours,
although Karina is expected to remain a hurricane during the next
day or two.

Hurricane Marie is centered near 19.6N 116.3W at 04/0300 UTC,
moving west-northwest at 8 kt. Estimated minimum central
pressure is 972 mb. Maximum sustained wind speed is 85 kt with 
gusts to 105 kt. Peak seas are near 39 ft. Numerous moderate to 
isolated strong convection is noted from 12N to 23N between 110W 
and 120W. The WNW motion is expected to continue through the 
weekend. Some slight additional strengthening is possible 
tonight. Gradual weakening is expected to begin by Saturday. 
Swells generated by Marie will continue to affect portions of the
coast of southwest Mexico and the Baja California Peninsula for 
the next few days and are expected to spread northward to 
Southern California Friday through the weekend. These swells are 
likely to cause life-threatening surf and rip current conditions.
Please consult products from your local weather office.

Please read the latest HIGH SEAS FORECAST issued by the National
Hurricane Center at website - 
https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml and the latest 
Marie NHC Forecast/Advisory and Public Advisory at 
www.hurricanes.gov for more details.
 
...TROPICAL WAVES...
 
A tropical wave is along 97W, extending from Oaxaca to 02N, 
moving west at 5 kt. Scattered moderate to isolated strong 
convection is noted near the wave axis. 

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

The monsoon trough enters the eastern Pacific through the coast
of Costa Rica near 09N84W to 07N97W and to 09N109W and then from
13N121W to 13N133W. Scattered moderate to isolated strong
convection is observed from 03N to 10N and east of 113W. Similar
convection is found from 08N to 15N and west of 117W.

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

Please see the Special Features section for information on 
Hurricane Marie centered southwest of Baja California, Mexico.

Aside from the impacts of Hurricane Marie, the pressure gradient
between a ridge located north of the area and the hurricane 
sustain moderate to fresh northerly winds and moderate to rough seas
across the offshore waters of Baja California. Moderate to fresh
southerly winds and seas of 2 to 4 ft are found in the northern 
and central Gulf of California. Elsewhere, light to gentle winds 
and slight to moderate seas are evident in the offshore waters of
Mexico.

For the forecast, Hurricane Marie is near 19.6N 116.3W at 8 PM
PDT, and is moving west-northwest at 8 kt. Maximum sustained 
winds are 85 kt with gusts to 105 kt, and the minimum central 
pressure is 972 mb. Marie will move to 20.0N 117.5W Fri morning, 
20.7N 118.8W Fri evening, 21.5N 120.0W Sat morning, 22.2N 121.0W 
Sat evening, 22.9N 121.9W Sun morning, and weaken to a tropical 
storm near 23.5N 123.1W Sun evening. Marie will change little in 
intensity as it moves to the 24.5N 126.0W late Mon. Elsewhere, a 
tight pressure gradient will result in fresh S to SE winds in the
N Gulf of California into Fri night. 

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

High pressure centered between Bermuda and the Bahamas extends
southward into Central America and supports moderate to fresh
easterly trade winds and moderate seas across the Gulf of
Papagayo waters. Moderate southerly winds and moderate seas are
occurring south of 03N. Elsewhere, light to gentle winds and 2-4
ft seas prevail.

For the forecast, a moderate pressure gradient across Central 
America will sustain fresh E winds over the Gulf of Papagayo into
early next week. Thereafter, the gradient may tighten and strong
gap winds may result. Moderate to locally fresh southerly winds 
are expected in the waters between Ecuador and the Galapagos 
Islands into Sat. Elsewhere, moderate or lighter winds will 
prevail. 

...REMAINDER OF THE AREA...

Please see the Special Features section for information about 
Hurricane Karina centered well east of Hawaii, and Hurricane 
Marie located southwest of Baja California, Mexico.

Away from the impacts of Hurricanes Karina and Marie, moderate 
or weaker winds with seas 5-7 ft are prevalent the tropical NE 
Pacific.

For the forecast, Hurricane Karina is near 20.1N 138.4W at 8 PM
PDT, and is moving west-northwest at 8 kt. Maximum sustained 
winds are 90 kt with gusts to 110 kt, and the minimum central 
pressure is 969 mb. Karina will move to 20.4N 139.7W Fri morning,
and move into the Central Pacific Fri afternoon. Hurricane Marie
is near 19.6N 116.3W at 8 PM PDT, and is moving west-northwest 
at 8 kt. Maximum sustained winds are 85 kt with gusts to 105 kt, 
and the minimum central pressure is 972 mb. Marie will move to 
20.0N 117.5W Fri morning, 20.7N 118.8W Fri evening, 21.5N 120.0W 
Sat morning, 22.2N 121.0W Sat evening, 22.9N 121.9W Sun morning, 
and weaken to a tropical storm near 23.5N 123.1W Sun evening. 
Marie will change little in intensity as it moves to the 24.5N 
126.0W late Mon.

Elsewhere, an area of low pressure could form well offshore of
southwestern Mexico early next week. Gradual development is 
possible, and the system could become a tropical depression 
around the middle of next week while it moves west-northwestward 
at 10 to 15 mph, likely remaining well offshore of Mexico. This 
system has a medium chance of tropical formation over the next 7 
days. 

$$
Delgado