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Tropical Storm OLIVIA


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BULLETIN
Tropical Storm Olivia Advisory Number  43
NWS Central Pacific Hurricane Center Honolulu HI   EP172018
1100 PM HST Mon Sep 10 2018
 
...OLIVIA CONTINUES MOVING TOWARD HAWAII...
 
 
SUMMARY OF 1100 PM HST...0900 UTC...INFORMATION
-----------------------------------------------
LOCATION...22.0N 150.1W
ABOUT 360 MI...580 KM ENE OF HILO HAWAII
ABOUT 505 MI...810 KM E OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H
PRESENT MOVEMENT...W OR 280 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...996 MB...29.42 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
 
None.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
 
A Tropical Storm Warning is in effect for...
* Oahu
* Maui County...including the islands of Maui, Molokai, Lanai, and
Kahoolawe
* Hawaii County
 
A Tropical Storm Watch is in effect for...
* Kauai County...including the islands of Kauai and Niihau.
 
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere in the warning area within 36 hours.
 
A Tropical Storm Watch means that tropical storm conditions are
possible in the watch area within 48 hours.
 
For storm information specific to your area, please monitor
products issued by the National Weather Service office in
Honolulu Hawaii.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 1100 PM HST (0900 UTC), the center of Tropical Storm Olivia was
located by aircraft near latitude 22.0 North, longitude 150.1 West.
Olivia is moving toward the west near 9 mph (15 km/h). A turn to the
west and west-southwest is expected early Tuesday, with this
general motion continuing for the next couple of days. On the
forecast track, the center of Olivia will be moving over the main
Hawaiian Islands late Tuesday night into Wednesday. 
 
Maximum sustained winds are near 70 mph (110 km/h) with higher
gusts. Gradual weakening is forecast during the next 48 hours, but
Olivia is expected to remain a tropical storm as it moves over the
islands.
 
Tropical-storm-force winds extend outward up to 105 miles (165 km)
from the center.
 
The estimated minimum central pressure is 996 mb (29.42 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
WIND: Tropical storm conditions are expected over Maui County and
the Big Island starting late Tuesday or Tuesday night. Tropical
storm conditions are expected over Oahu starting late Tuesday night
or Wednesday morning. Tropical storm conditions are possible over
Kauai County starting Wednesday afternoon or evening.
 
RAINFALL: Olivia is expected to produce total rainfall accumulations
of 10 to 15 inches, with isolated maximum amounts of 20 inches
possible. This rainfall may produce life-threatening flash flooding.
 
SURF: Large swells generated by Olivia will impact the main Hawaiian
Islands over the next couple of days. This will cause surf to
build, mainly along exposed east facing shores, and surf may become
damaging.
 
 
NEXT ADVISORY
-------------
Next intermediate advisory at 200 AM HST.
Next complete advisory at 500 AM HST.
 
$$
Forecaster Birchard
 
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