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Tropical Depression OLIVIA


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BULLETIN
Tropical Depression Olivia Advisory Number  51
NWS Central Pacific Hurricane Center Honolulu HI   EP172018
1100 PM HST Wed Sep 12 2018
 
...OLIVIA WEAKENS TO A TROPICAL DEPRESSION SOUTH-SOUTHWEST OF
KAUAI...
...HEAVY RAINFALL CONTINUES ACROSS PORTIONS OF THE MAIN HAWAIIAN
ISLANDS...
 
 
SUMMARY OF 1100 PM HST...0900 UTC...INFORMATION
-----------------------------------------------
LOCATION...20.0N 160.6W
ABOUT 160 MI...255 KM SSW OF LIHUE HAWAII
ABOUT 195 MI...315 KM WSW OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...WSW OR 255 DEGREES AT 18 MPH...30 KM/H
MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
 
None.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
 
There are no coastal watches or warnings in effect.
 
Interests in the Northwest Hawaiian Islands should monitor the
progress of Olivia.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 1100 PM HST (0900 UTC), the center of Tropical Depression Olivia
was located near latitude 20.0 North, longitude 160.6 West. The
depression is moving toward the west-southwest near 18 mph (30
km/h), and this general motion is expected to continue through
early Thursday with a slight decrease in forward speed, followed by
a turn toward the west late Thursday. Olivia, or its remnant low,
is forecast to turn toward the west-northwest on Friday.
 
Maximum sustained winds are near 35 mph (55 km/h) with higher gusts.
Little change in strength is forecast through Thursday evening.
Olivia is expected to become a post-tropical remnant low late
Thursday night or Friday.
 
The estimated minimum central pressure is 1008 mb (29.77 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
RAINFALL: Areas of heavy rainfall will likely persist through
Thursday night. Moisture associated with Olivia is expected to
produce total rainfall accumulations of 5 to 10 inches in some
areas, with isolated amounts of up to 15 inches, especially over
higher terrain. This rainfall may produce life-threatening flash
flooding. Nine inches of rain have already fallen over parts of
Maui.
 
SURF: Large swells generated by Olivia will impact parts of the
main Hawaiian Islands tonight. This will result in dangerous
surf along east facing shores.
 
 
NEXT ADVISORY
-------------
Next complete advisory at 500 AM HST.
 
$$
Forecaster Houston
 
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