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BULLETIN
Hurricane Walaka Advisory Number  18
NWS Central Pacific Hurricane Center Honolulu HI   CP012018
500 PM HST Wed Oct 03 2018
 
...DANGEROUS HURRICANE WALAKA NOW MOVING INTO THE PAPAHANAUMOKUAKEA
MARINE NATIONAL MONUMENT...
 
 
SUMMARY OF 500 PM HST...0300 UTC...INFORMATION
----------------------------------------------
LOCATION...23.1N 167.9W
ABOUT 115 MI...185 KM WSW OF FRENCH FRIGATE SHOALS
ABOUT 650 MI...1050 KM WNW OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...125 MPH...205 KM/H
PRESENT MOVEMENT...NNE OR 15 DEGREES AT 22 MPH...35 KM/H
MINIMUM CENTRAL PRESSURE...946 MB...27.94 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
 
None.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
 
A Hurricane Warning is in effect for...
* Papahanaumokuakea Marine National Monument from French Frigate
Shoals to Maro Reef
 
A Tropical Storm Warning is in effect for...
* Papahanaumokuakea Marine National Monument from Nihoa to French
Frigate Shoals
 
A Hurricane Warning indicates that hurricane conditions are expected
in portions of the warning area starting tonight.
 
A Tropical Storm Warning indicates that tropical storm conditions
are imminent or occurring within the warning area.

 
DISCUSSION AND OUTLOOK
----------------------
At 500 PM HST (0300 UTC), the center of Hurricane Walaka was located
near latitude 23.1 North, longitude 167.9 West. Walaka is moving
toward the north-northeast near 22 mph (35 km/h) and this motion is
expected to continue tonight. Walaka is forecast to turn toward the
north with a slower forward speed Thursday and Thursday night. On
this forecast track, the center of Walaka will cross the
Papahanaumokuakea Marine National Monument between French Frigate
Shoals and Gardner Pinnacles tonight.
 
Maximum sustained winds are near 125 mph (205 km/h) with higher
gusts.  Walaka is a category 3 hurricane on the Saffir-Simpson
Hurricane Wind Scale.  A weakening trend is forecast to continue
through Friday. However, Walaka will remain a powerful and
life-threatening hurricane as it crosses the Papahanaumokuakea
Marine National Monument.
 
Hurricane-force winds extend outward up to 70 miles (110 km) from
the center and tropical-storm-force winds extend outward up to 220
miles (350 km).
 
The estimated minimum central pressure is 946 mb (27.94 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
WIND: Tropical storm force winds are now spreading across the
Papahanaumokuakea Marine National Monument from Necker Island to
French Frigate Shoals to Maro Reef, with hurricane conditions
expected over the area from French Frigate Shoals to Gardner
Pinnacles tonight.
 
SURF: Large surf will continue to impact the Papahanaumokuakea
Marine National Monument through early Thursday morning. These large
waves will likely inundate some of the low-lying atolls, especially
from French Frigate Shoals to Maro Reef.
 
RAINFALL: Torrential rainfall will continue to across the
Papahanaumokuakea Marine National Monument from Nihoa to French
Frigate Shoals to Maro Reef through tonight.
 
 
NEXT ADVISORY
-------------
Next intermediate advisory at 800 PM HST.
Next complete advisory at 1100 PM HST.
 
$$
Forecaster Brenchley
 
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