333
AXPZ20 KNHC 301548
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 UTC Thu Jul 30 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 1200 UTC surface analysis and satellite imagery through
1500 UTC.

...SPECIAL FEATURES...

Hurricane Genevieve is centered near 20.6N 123.5W at 30/1500
UTC, moving west-northwest at 13 kt. Estimated minimum central
pressure is 980 mb. Maximum sustained wind speed is 70 kt with
gusts to 85 kt. Peak seas are near 33 ft or 10 m. Numerous
moderate to strong convection is within 60 nm in the NE quadrant,
120 nm in the S semicircle, and 180 nm in the NW semicircle.
Genevieve is moving toward the west-northwest, and this general
motion is expected to continue during the next several days.
Gradual weakening is forecast during the next few days, and
Genevieve is expected to weaken to a tropical storm later today
and become a remnant low late this weekend.

Swells generated by Genevieve are affecting portions of the Baja
California Peninsula and Southern California. These swells will
persist for the next several days, and are likely to cause life-
threatening surf and rip current conditions. Please consult
products from your local weather office. A depiction of rip
current risk for the United States can be found at:
hurricanes.gov/graphics_ep2.shtml?ripCurrents

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 moving into the western Caribbean Sea just
east of the discussion waters along 76W over portions of western
Colombia, moving westward at around 20 kt. Numerous moderate to
strong convection is noted out ahead of the wave from 02N to 10N
to the east of 83W.

A tropical wave is along 98W, extending from 01N to 15N near the
coast of Oaxaca, Mexico, moving westward around 20 kt. Numerous
moderate isolated strong convection is noted from 09N to 15N
between 98W and 104W.

A tropical wave is along 110W, from 01N to 19N near the
Revillagigedo Islands, moving westward around 5 to 10 kt.
Isolated to widely scattered moderate to strong convection is
noted from 03N to 24N between 105W and 115W.

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

The monsoon trough extends from 10N85W near the Gulf of Papagayo
to 05N98W to 15N118W, then resumes SSW of Genevieve from 15N125W
to beyond 06.5N140W. Other than the convection mentioned above,
Isolated to widely scattered moderate to strong convection is
noted within 240 nm either side of the monsoon trough between
130W and 140W.

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

Please refer to the Special Features Section above for details on
Hurricane Genevieve which continues to move away from the outer
offshore waters of Baja California. Please refer to the Tropical
Waves section above for information about additional convection
in the region.

Swells from Hurricane Genevieve are still bringing some rough
seas to about 10 ft to the outer offshore waters of Baja
California Sur. Scattered convection, likely inducing locally
gusty winds, has moved off the Sinaloan coast into the southern
Gulf of California and adjacent waters to the south, also likely
enhanced by the northern portion of the tropical wave along 110W.
Moderate to locally fresh N gap winds are in the Gulf of
Tehuantepec early this morning. Elsewhere, moderate or weaker
winds prevail. Seas are slight in the Gulf of California and
moderate in the remaining offshore waters.

For the forecast, rough seas in the outer offshore waters W of
Baja California will subside later today. Increasing NW swell
may lead to rough seas again offshore Baja California Norte Sun
night and Mon. Fresh to locally strong gap winds are likely in
the Gulf of Tehuantepec tonight, then moderate to fresh Fri
night. Moderate to fresh NW winds are expected to pulse tonight
and Fri night nearshore Baja California as high pressure builds
southward west of the Peninsula. Elsewhere, Fresh SE to S winds
may pulse nightly in the northern Gulf of California beginning
tonight, possibly to strong Sat night.

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

Please refer to the Tropical Waves section above for information
about convection in the region.

High pressure northeast of the area is forcing strong easterly
gap winds and resultant seas of 7 to 9 ft across the Gulf of
Papagayo region, with moderate to fresh northerly gap winds and 5
to 7 ft seas in the Gulf of Panama. Elsewhere, light to gentle
winds and moderate seas prevail.

For the forecast, fresh to strong NE to E gap winds will pulse
across the Papagayo region through Sun, with occasionally rough
seas. Pulsing moderate to locally fresh N winds are expected in
the Gulf of Panama tonight. Southerly winds may freshen offshore
southern Colombia and from Ecuador to the Galapagos Islands tonight
and 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, high
pressure is centered just northwest of the area. The pressure
pattern between the high and Genevieve is supporting moderate to
fresh NE trades to the north and west of Genevieve, mainly across
the waters north of 15N and west of 120W. Seas in this region
have built to 7 to 10 ft well away from Genevieve. Moderate to
locally fresh SE winds are found south of the Equator and west of
100W. Moderate or weaker winds are elsewhere. Moderate seas
dominate the remainder of the waters.

For the forecast, Hurricane Genevieve will weaken to a tropical
storm near 21.0N 125.5W this evening, move to 21.7N 128.1W Fri
morning, 22.5N 130.7W Fri evening, 23.3N 133.6W Sat morning,
24.2N 136.6W Sat evening, and become post-tropical and move to
25.1N 139.4W Sun morning. Genevieve will weaken to a remnant low
west of the discussion waters near 27.2N 143.9W early Mon. Away
from Genevieve, little change in marine conditions is forecast
through the weekend. Fresh and rough northerly swell off
California is likely to push southward into the waters off Baja
California Norte north of 27N and east of 130W by the end of the
weekend into early next week. Looking ahead, new large southerly
swell may build south of the Equator and west of 100W beginning
Tue night.

$$
Lewitsky