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BULLETIN
Hurricane Hector Advisory Number  38
NWS Central Pacific Hurricane Center Honolulu HI   EP102018
1100 AM HST Thu Aug 09 2018
 
...HECTOR STILL A MAJOR HURRICANE...
...TROPICAL STORM CONDITIONS ARE POSSIBLE ON JOHNSTON ISLAND
FRIDAY...
 
 
SUMMARY OF 1100 AM HST...2100 UTC...INFORMATION
-----------------------------------------------
LOCATION...16.9N 161.5W
ABOUT 385 MI...620 KM SW OF HONOLULU HAWAII
ABOUT 530 MI...850 KM E OF JOHNSTON ISLAND
MAXIMUM SUSTAINED WINDS...120 MPH...195 KM/H
PRESENT MOVEMENT...W OR 275 DEGREES AT 16 MPH...26 KM/H
MINIMUM CENTRAL PRESSURE...957 MB...28.26 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
 
None.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Tropical Storm Watch is in effect for...
* Johnston Island
 
A Tropical Storm Watch means tropical storm conditions are possible
within the next 48 hours.
 
Interests in the Northwestern Hawaiian Islands, including Midway
and Kure Atolls and the Papahanaumokuakea Marine National Monument
west of Laysan Island, should monitor the progress of Hector. This
does not include the main Hawaiian Islands. 
 
DISCUSSION AND OUTLOOK
----------------------
At 1100 AM HST (2100 UTC), the eye of Hurricane Hector was
located near latitude 16.9 North, longitude 161.5 West. Hector is
moving toward the west near 16 mph (26 km/h) and this general motion
is expected to continue through today. A gradual turn toward the
west-northwest is expected tonight through late Friday.  On the
forecast track, the center of Hector is expected to pass 100 to 200
miles north of Johnston Island late Friday.
 
Maximum sustained winds are near 120 mph (195 km/h) with higher
gusts.  Hector is a category 3 hurricane on the Saffir-Simpson
Hurricane Wind Scale. Little change in strength is forecast through
Friday night, with slow weakening afterward.
 
Hurricane-force winds extend outward up to 35 miles (55 km) from the
center and tropical-storm-force winds extend outward up to 90 miles
(150 km).
 
The estimated minimum central pressure is 957 mb (28.26 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
SURF: Swells generated by Hector should begin to impact Johnston
Island tonight. This will likely produce large and dangerous waves
along portions of the island from late tonight through Friday
night.
 
 
NEXT ADVISORY
-------------
Next intermediate advisory at 200 PM HST.
Next complete advisory at 500 PM HST.
 
$$
Forecaster Kodama
 
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