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BULLETIN
Hurricane Hector Advisory Number  31
NWS Central Pacific Hurricane Center Honolulu HI   EP102018
500 PM HST Tue Aug 07 2018
 
...POWERFUL HURRICANE HECTOR CONTINUING TO MOVE WESTWARD...
...FAR NORTHERN FRINGES OF THE HURRICANE WILL BRUSH THE BIG ISLAND
ON WEDNESDAY...
 
 
SUMMARY OF 500 PM HST...0300 UTC...INFORMATION
----------------------------------------------
LOCATION...16.6N 150.7W
ABOUT 370 MI...590 KM ESE OF SOUTH POINT HAWAII
ABOUT 570 MI...920 KM ESE OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...130 MPH...215 KM/H
PRESENT MOVEMENT...W OR 280 DEGREES AT 16 MPH...26 KM/H
MINIMUM CENTRAL PRESSURE...952 MB...28.12 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
 
A Tropical Storm Warning has been issued for Hawaii County.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
 
A Tropical Storm Warning is in effect for...
* Hawaii County
 
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area.
 
Interests on Johnston Island should monitor the progress of Hector.
 
For storm information specific to your area, please monitor
products issued by the National Weather Service office in
Honolulu Hawaii.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 500 PM HST (0300 UTC), the center of Hurricane Hector was located
near latitude 16.6 North, longitude 150.7 West. Hector is moving
toward the west near 16 mph (26 km/h) and this general motion is
expected to continue through the next couple of days. On the
forecast track, the center of Hector will pass 100 to 150 miles
south of the Big Island during the day on Wednesday. Remember, the
effects of a hurricane are far reaching and can extend well away
from the center.
 
Maximum sustained winds are near 130 mph (215 km/h) with higher
gusts.  Hector is a category 4 hurricane on the Saffir-Simpson
Hurricane Wind Scale.  Some weakening is forecast during the next 48
hours.
 
Hurricane-force winds extend outward up to 40 miles (65 km) from the
center and tropical-storm-force winds extend outward up to 115 miles
(185 km).
 
The estimated minimum central pressure is 952 mb (28.12 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
SURF:  Swells generated by Hector are expected to reach southeast
and east facing shores of the Big Island and eastern Maui late
today, likely becoming large and dangerous by late tonight and
Wednesday.
 
WIND:  Tropical storm conditions are expected across portions of
the Big Island on Wednesday as the core of Hector passes to the 
south. The strongest winds are expected downslope from mountains,
across elevated terrain, over headlands, and through gaps.
 
 
NEXT ADVISORY
-------------
Next intermediate advisory at 800 PM HST.
Next complete advisory at 1100 PM HST.
 
$$
Forecaster R Ballard
 
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