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Hurricane Olivia Intermediate Advisory Number 40A...Corrected
NWS Central Pacific Hurricane Center Honolulu HI EP172018
800 AM HST Mon Sep 10 2018
Correction to headline and advisory data
...OLIVIA HEADED SLOWLY WEST TOWARD THE ALOHA STATE...
SUMMARY OF 800 AM HST...1800 UTC...INFORMATION
ABOUT 475 MI...765 KM ENE OF HILO HAWAII
ABOUT 630 MI...1015 KM E OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H
PRESENT MOVEMENT...W OR 270 DEGREES AT 8 MPH...13 KM/H
MINIMUM CENTRAL PRESSURE...980 MB...28.94 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Tropical Storm Warning is in effect for...
* Maui County...including the islands of Maui, Molokai, Lanai, and
* Hawaii County
A Tropical Storm Watch is in effect for...
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area within 36 hours.
A Tropical Storm Watch means that tropical storm conditions are
possible in the watch area within 48 hours.
Interests on Kauai and Niihau should closely monitor the progress
For storm information specific to your area, please monitor
products issued by the National Weather Service office in
DISCUSSION AND OUTLOOK
At 800 AM HST (1800 UTC), Air Force Reserve Hurricane Hunters
located the center of Hurricane Olivia near latitude 21.8 North,
longitude 148.1 West. Olivia is moving toward the west near 8 mph
(13 km/h). A turn toward the west-southwest is expected starting
later today, and this motion is expected to continue through
Wednesday. On the forecast track, the center of Olivia will be
moving over the main Hawaiian Islands Tuesday night into Wednesday.
Maximum sustained winds are near 85 mph (140 km/h) with higher
gusts. Little change in strength is forecast today, with slight
weakening starting tonight and continuing through Tuesday. However,
Olivia is forecast to be a strong tropical storm when it reaches the
Hurricane-force winds extend outward up to 30 miles (45 km) from
the center and tropical-storm-force winds extend outward up to 115
miles (185 km).
The estimated minimum central pressure is 980 mb (28.94 inches).
HAZARDS AFFECTING LAND
WIND: Tropical storm conditions are expected somewhere within the
warning area starting late Tuesday. Tropical storm conditions are
possible within the watch area starting early Wednesday morning.
RAINFALL: Olivia is expected to produce total rainfall accumulations
of 10 to 15 inches. Isolated maximum amounts of 20 inches are
possible, especially over windward sections of Maui County and the
Big Island. This rainfall may produce life-threatening flash
SURF: Large swells generated by Olivia will spread from east to
west across the Hawaiian Islands early this week. This will cause
surf to build along exposed east facing shorelines as Olivia
approaches. This surf may become damaging across parts of the state.
Next complete advisory at 1100 AM HST.
Forecaster R Ballard