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BULLETIN
Hurricane Walaka Intermediate Advisory Number 19A
NWS Central Pacific Hurricane Center Honolulu HI   CP012018
200 AM HST Thu Oct 04 2018
 
...THE CENTER OF HURRICANE WALAKA IS MOVING AWAY FROM THE
PAPAHANAUMOKUAKEA MARINE NATIONAL MONUMENT...
...LARGE SURF AND STRONG WINDS CONTINUE TO BATTER MOST OF THE
AREA BETWEEN NIHOA AND MARO REEF...
 
 
SUMMARY OF 200 AM HST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...25.8N 166.2W
ABOUT 135 MI...215 KM N OF FRENCH FRIGATE SHOALS
ABOUT 610 MI...980 KM WNW OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H
PRESENT MOVEMENT...NNE OR 15 DEGREES AT 22 MPH...35 KM/H
MINIMUM CENTRAL PRESSURE...953 MB...28.14 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
possible somewhere within the warning area.
 
A Tropical Storm Warning indicates that tropical storm conditions
are occurring within the warning area.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 200 AM HST (1200 UTC), the center of Hurricane Walaka was located
near latitude 25.8 North, longitude 166.2 West. Walaka is moving
toward the north-northeast near 22 mph (35 km/h), and this general
motion is expected to continue this morning. Walaka is forecast to
turn toward the north with a slower forward speed later today,
followed by a turn toward the north-northwest tonight. By Friday, it
is forecast to begin moving toward the north-northeast again.
 
Maximum sustained winds are near 115 mph (185 km/h) with higher
gusts. Walaka remains a powerful category 3 hurricane on the
Saffir-Simpson Hurricane Wind Scale. Gradual weakening is expected
through Friday, but Walaka is forecast to remain a hurricane through
early Friday morning.
 
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 953 mb (28.14 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
WIND: Hurricane conditions may remain over some areas in the
Papahanaumokuakea Marine National Monument between French Frigate
Shoals and Gardner Pinnacles. Tropical storm force winds will likely
persist this morning elsewhere over most of the Papahanaumokuakea
Marine National Monument east of Maro Reef.
 
SURF: Large surf will continue to impact the Papahanaumokuakea
Marine National Monument today. These large waves have likely
inundated some of the low-lying atolls, especially from just east
of French Frigate Shoals to near Maro Reef.
 
RAINFALL: Bands with heavy rainfall will likely continue across
some areas of the Papahanaumokuakea Marine National Monument from
Nihoa to French Frigate Shoals to Gardner Pinnacles this morning.
 
 
NEXT ADVISORY
-------------
Next complete advisory at 500 AM HST.
 
$$
Forecaster Houston
 
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