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Tropical Storm Genevieve Intermediate Advisory Number 17A
NWS National Hurricane Center Miami FL EP122020
1200 PM MDT Thu Aug 20 2020
...GENEVIEVE WEAKENS TO A TROPICAL STORM...
...TROPICAL STORM CONDITIONS EXPECTED TO CONTINUE OVER PORTIONS
OF SOUTHERN BAJA CALIFORNIA INTO TONIGHT...
SUMMARY OF 1200 PM MDT...1800 UTC...INFORMATION
ABOUT 145 MI...235 KM WNW OF THE SOUTHERN TIP OF BAJA CALIFORNIA
ABOUT 75 MI...120 KM SSE OF CABO SAN LAZARO MEXICO
MAXIMUM SUSTAINED WINDS...70 MPH...115 KM/H
PRESENT MOVEMENT...NW OR 310 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...988 MB...29.18 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Tropical Storm Warning is in effect for...
* Baja California peninsula from Los Barriles 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 Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area. Tropical storm
conditions have already been occurring along the southern tip of
the Baja California peninsula since last night, and these
conditions continue to spread northward over the Southern Baja
California peninsula, especially over higher terrain.
A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area.
For storm information specific to your area, please monitor
products issued by your national meteorological service.
DISCUSSION AND OUTLOOK
At 1200 PM MDT (1800 UTC), the center of Tropical Storm Genevieve
was located near latitude 23.8 North, longitude 111.9 West.
Genevieve is moving toward the northwest near 12 mph (19 km/h) and
this motion is expected to continue 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
Maximum sustained winds have decreased to near 70 mph (115 km/h)
with higher gusts. Further gradual weakening is expected today and
through the weekend.
Tropical-storm-force winds extend outward up to 115 miles (185 km)
from the center.
The estimated minimum central pressure is 988 mb (29.18 inches).
HAZARDS AFFECTING LAND
WIND: Tropical storm conditions will continue to spread northward
within the warning area in the southern Baja California peninsula
today and may linger into tonight. Tropical storm conditions are
possible within the watch area through the early afternoon,
especially over higher terrain.
RAINFALL: Genevieve is expected to produce additional rainfall
amounts of 2 to 4 inches across southern Baja California Sur, with
isolated storm totals of 12 inches across 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 PM MDT.