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Hurricane Genevieve Intermediate Advisory Number 15A
NWS National Hurricane Center Miami FL EP122020
1200 AM MDT Thu Aug 20 2020
...GENEVIEVE INCHING CLOSER TO BAJA CALIFORNIA SUR...
...HURRICANE-FORCE GUSTS AND HEAVY RAINFALL SPREADING SLOWLY
NORTHWARD OVER SOUTHERN BAJA CALIFORNIA SUR...
SUMMARY OF 1200 AM MDT...0600 UTC...INFORMATION
ABOUT 45 MI...75 KM SSW OF THE SOUTHERN TIP OF BAJA CALIFORNIA
ABOUT 205 MI...335 KM SSE OF CABO SAN LAZARO MEXICO
MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H
PRESENT MOVEMENT...NNW OR 335 DEGREES AT 7 MPH...11 KM/H
MINIMUM CENTRAL PRESSURE...979 MB...28.91 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Hurricane Warning is in effect for...
* Southern Baja California peninsula from Los Barriles to Todos
A Tropical Storm Warning is in effect for...
* West coast of the Baja California peninsula from north of
Todos Santos to Cabo San Lazaro
A Tropical Storm Watch is in effect for...
* The east coast of the Baja California peninsula from Los Barriles
to La Paz
A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area, in this case within the next
12 hours. Preparations to protect life and property should be rushed
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area, in this case within the
next 24 hours. Tropical storm conditions are already occurring
along the southern tip of the Baja California peninsula, especially
over higher terrain.
A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, in this case within the next 36
For storm information specific to your area, please monitor
products issued by your national meteorological service.
DISCUSSION AND OUTLOOK
At 1200 AM MDT (0600 UTC), the eye of Hurricane Genevieve was
located near latitude 22.3 North, longitude 110.2 West. Genevieve is
moving toward the north-northwest near 7 mph (11 km/h). A turn
toward the northwest is expected later this morning, with that
motion continuing through Saturday. On the forecast track, the
center of Genevieve is expected to pass just to the southwest and
west of the southern portion of the Baja California peninsula today,
and move away from the peninsula on Friday.
Maximum sustained winds are near 85 mph (140 km/h) with higher
gusts. Gradual weakening is expected today and through the weekend.
However, Genevieve is forecast to remain a hurricane through this
morning while it passes just to the southwest and west of the
southern Baja California peninsula.
Hurricane-force winds extend outward up to 30 miles (45 km) from
the center and tropical-storm-force winds extend outward up to 140
miles (220 km). A sustained wind of 65 mph (105 km/h) and a gust to
84 mph (135 km/h) was recently reported in Cabo San Lucas Marina,
Baja California Sur.
The estimated minimum central pressure is 979 mb (28.91 inches).
HAZARDS AFFECTING LAND
WIND: Hurricane conditions are occurring in the warning area.
Tropical storm conditions will spread northward within the warning
area in the southern Baja California peninsula through today.
Tropical storm conditions are possible within the watch area later
this morning, especially over higher terrain.
RAINFALL: Genevieve is expected to produce rainfall amounts of
4 to 8 inches with isolated totals of 12 inches across portions
of far southern Baja California Sur. This rainfall may lead to
life-threatening flash flooding and mudslides.
SURF: Large swells produced by Genevieve are affecting portions of
the west-central coast of Mexico and are spreading northward along
the coast of the Baja California peninsula. These swells are
likely to cause life-threatening surf and rip current conditions.
Please consult products from your local weather office.
Next complete advisory at 300 AM MDT.