ZCZC MIATCPEP5 ALL
TTAA00 KNHC DDHHMM
Hurricane Olaf Advisory Number 9
NWS National Hurricane Center Miami FL EP152021
300 PM MDT Thu Sep 09 2021
...EYEWALL OF OLAF NEARING THE SOUTHERN COAST OF BAJA CALIFORNIA
...HURRICANE WARNING EXTENDED NORTHWARD TO CABO SAN LAZARO...
SUMMARY OF 300 PM MDT...2100 UTC...INFORMATION
ABOUT 80 MI...130 KM SE OF CABO SAN LUCAS MEXICO
MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H
PRESENT MOVEMENT...NNW OR 335 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...977 MB...28.85 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
The government of Mexico has upgraded the Tropical Storm Warning
from north of Sante Fe to Cabo San Lazaro to a Hurricane Warning.
The government of Mexico has also issued a Tropical Storm Warning
from north of Cabo San Lazaro to Puerto San Andresito and from San
Evaristo to Loreto.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Hurricane Warning is in effect for...
* Baja California Sur Mexico from Los Barriles to Cabo San Lazaro.
A Tropical Storm Warning is in effect for...
* Baja California Sur Mexico north of Cabo San Lazaro to Puerto San
* Baja California Sur Mexico north of Los Barriles to Loreto
A Hurricane Warning means that hurricane conditions are expected
somewhere within the hurricane warning area, in this case within
the next 12 to 24 hours. Preparations to protect life and property
should be rushed to completion.
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the tropical storm warning area within 36
Interests elsewhere in Baja California Sur should monitor the
progress of Olaf.
For storm information specific to your area, please monitor
products issued by your national meteorological service.
DISCUSSION AND OUTLOOK
At 300 PM MDT (2100 UTC), the center of Hurricane Olaf was located
near latitude 22.2 North, longitude 108.9 West. Olaf is moving
toward the north-northwest near 10 mph (17 km/h). A slight turn
toward the northwest is expected tonight, and Olaf is forecast to
continue moving toward the northwest on Friday. A turn toward the
west is expected over the weekend. On the forecast track, the
center of Olaf will approach the southern coast of the Baja
California peninsula during the next several hours, and then move
very near or over southern Baja California Sur tonight and on
Friday. The hurricane will begin to move westward away from land
late Friday or early Saturday.
Maximum sustained winds have increased to near 90 mph (150 km/h)
with higher gusts. Additional strengthening is possible before the
hurricane nears the coast tonight. Weakening is expected on Friday
after Olaf begins to interact with land. Further weakening is likely
over the weekend.
Hurricane-force winds extend outward up to 35 miles (55 km) from the
center and tropical-storm-force winds extend outward up to 105 miles
The estimated minimum central pressure is 977 mb (28.85 inches).
HAZARDS AFFECTING LAND
Key messages for Olaf can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDEP5 and WMO header WTPZ45 KNHC
and on the web at hurricanes.gov/graphics_ep5.shtml?key_messages
WIND: Hurricane conditions are expected to reach the coast within
the hurricane warning area late this afternoon or this evening and
will spread northward through Friday. Tropical Storm conditions are
occuring near the southern coast of Baja California Sur and will
spread northward during the next several hours, making outside
preparations difficult or dangerous. Preparations to protect life
and property should be rushed to completion.
Tropical storm conditions are expected to begin in southern
portions of the tropical storm warning area Friday night.
RAINFALL: Olaf is expected to produce total rainfall amounts of 5
to 10 inches with maximum amounts of 15 inches across portions of
southern Baja California Sur through Friday. This rainfall may
trigger significant and life-threatening flash flooding and
STORM SURGE: A dangerous storm surge is expected to produce
coastal flooding within the warning areas in regions of onshore
winds. Near the coast, the surge will be accompanied by large and
SURF: Swells generated by Olaf are affecting portions of the coasts
of southern Baja California Sur, Nayarit, and Sinaloa, and will
spread northward along the west coast of Baja California Sur through
Saturday. These swells are likely to cause life-threatening surf
and rip current conditions. Please consult products from your local
Next intermediate advisory at 600 PM MDT.
Next complete advisory at 900 PM MDT.
Forecaster D. Zelinsky