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Eastern North Pacific Tropical Weather Discussion


034 
AXPZ20 KNHC 290320
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Wed Jul 29 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 0000 UTC surface analysis and satellite imagery through
0230 UTC.
 
...SPECIAL FEATURES...

Hurricane Genevieve is centered near 18.3N 117.6W at 29/0300
UTC, moving west-northwest at 8 kt. Estimated minimum central
pressure is 948 mb. Maximum sustained wind speed is 115 kt with
gusts to 140 kt. Peak seas are near 37 ft, or 11.5 m. Numerous
moderate to isolated strong convection is within 120 nm of the
center, with scattered moderate to strong convection extending
from 12N to 16N between 112W to 116W. Genevieve is moving 
toward the west- northwest, and this general motion with a slight
increase in forward speed is expected during the next few days.
Genevieve has strengthened to a category 4 hurricane on the 
Saffir- Simpson Hurricane Wind Scale. Some fluctuations in
intensity are possible over thee next day or so, and a weakening
trend should begin thereafter. 

Swells generated by Genevieve are affecting portions of the Baja
California Peninsula and will reach Southern California 
Wednesday. These swells are likely to persist for a few more 
days, and could 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 
Genevieve NHC Forecast/Advisory and Public Advisory at 
www.hurricanes.gov for more details.

...TROPICAL WAVES...

A tropical wave is along 86W, extending southward from the Gulf
of Honduras, across Honduras and Costa Rica, and into the far
eastern Pacific to about 06N. This wave is moving W at 10 to 15
kt. Associated convection is confined well inland over Central 
America.

A tropical wave is along 106W, from 05N to 15W, moving west at 5
to 10 kt. Scattered moderate convection is noted from 05N to 10N
between 106W and 109W. 

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

The monsoon trough extends from 10N78W to 06N93W to 10N107W.
Scattered moderate to isolated strong convection is noted from
01N to 17N between 89W and 103W.

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

Please refer to the Special Features section for information on
Hurricane Genevieve with tropical storm or greater winds now just
beyond the offshore waters. Please refer to the Tropical Waves 
and Monsoon Trough/ITCZ sections above for information about 
additional convection in the region.

Away from the impacts of Genevieve, moderate to locally fresh NW
winds associated with high pressure building in from the 
northwest are impacting waters N and W of Guadalupe Island. This
same high is leading to moderate to locally fresh winds
developing just offshore Cabo San Lucas and in portions of the
far southern Gulf of California. Elsewhere, moderate or weaker 
winds prevail. Seas are slight in the Gulf of California and 
moderate in the remaining offshore waters.

For the forecast, Hurricane Genevieve is near 18.3N 117.6W at 8 
PM PDT, and is moving west-northwest at 8 kt. Maximum sustained 
winds are 115 kt with gusts to 140 kt, and the minimum central 
pressure is 948 mb. Genevieve will move to 18.6N 118.9W Wed 
morning, 19.3N 120.8W Wed evening, 20.0N 123.2W Thu morning, and 
20.7N 125.6W Thu evening. Genevieve will weaken to a tropical 
storm near 21.5N 128.0W Fri morning, then be at 22.2N 130.7W Fri 
evening. Associated seas of rough or greater will finally subside
across the offshore waters of Baja California Thu. Elsewhere, 
areas of fresh mainly westerly gap winds are likely through Wed 
night nearshore Baja California as high pressure builds southward
to the west of the Baja California Peninsula. Fresh northerly 
are likely in the Gulf of Tehuantepec at night into the early 
morning Thu night and Fri night. 

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

Please refer to the Monsoon Trough/ITCZ section above for 
information about convection in the region. 

High pressure northeast of the area is forcing fresh easterly 
gap winds and seas of 5 to 7 ft across the Gulf of Papagayo 
region. Moderate gap winds have also developed in the Gulf of
Panama. Elsewhere, mainly gentle or weaker winds and moderate 
seas are prevalent.

For the forecast, fresh to strong NE to E gap winds will pulse 
across the Papagayo region Wed night through the upcoming 
weekend, with occasionally rough seas. Pulsing moderate to 
locally fresh N winds are expected in the Gulf of Panama tonight 
and Wed night. Southerly winds may freshen offshore southern 
Colombia and from Ecuador to the Galapagos Islands Fri. Moderate 
or weaker winds and moderate seas in SW swell are expected across
the remainder of the waters through the period. 

...REMAINDER OF THE AREA...

Please refer to the Special Features section for information on
Hurricane Genevieve.

For waters not being impacted by Hurricane Genevieve, 1025 mb 
high pressure centered near 33N140W dominates. The pressure 
pattern between the high and Genevieve are supporting moderate to
fresh NE to E trades from offshore southern California around 
the periphery of the ridge including from 20N to 30N and west of 
120W, and from 10N to 20N and west of 130W. Moderate to locally 
fresh SE winds are found south of 07N and west of 115W. Moderate 
or weaker winds are elsewhere. Moderate seas dominate the waters 
away from Genevieve.

For the forecast, Hurricane will move to 18.6N 118.9W Wed 
morning, 19.3N 120.8W Wed evening, 20.0N 123.2W Thu morning, and 
20.7N 125.6W Thu evening. Genevieve will weaken to a tropical 
storm near 21.5N 128.0W Fri morning. Away from Genevieve, little 
change in marine conditions is forecast across the remainder of 
the waters into next weekend. Looking ahead, fresh and rough 
northerly swell off California may push southward into the waters
off Baja California Norte north of 27N and east of 130W by the 
end of the upcoming weekend into early next week.

$$
Konarik