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Hurricane Lane Advisory Number 39
NWS Central Pacific Hurricane Center Honolulu HI EP142018
1100 PM HST Thu Aug 23 2018
...DANGEROUS HURRICANE LANE MOVING NORTH TOWARD THE MAIN
...EXTREME FLOODING OCCURRING ON THE BIG ISLAND OF HAWAII...
SUMMARY OF 1100 PM HST...0900 UTC...INFORMATION
ABOUT 165 MI...260 KM SW OF KAILUA-KONA HAWAII
ABOUT 215 MI...345 KM S OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...120 MPH...195 KM/H
PRESENT MOVEMENT...N OR 350 DEGREES AT 6 MPH...9 KM/H
MINIMUM CENTRAL PRESSURE...956 MB...28.23 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Hurricane Warning is in effect for...
* Maui County...including the islands of Maui, Lanai, Molokai and
A Tropical Storm Warning is in effect for...
* Hawaii County
A Hurricane Watch is in effect for...
* Kauai County...including the islands of Kauai and Niihau
A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area. Preparations to protect life and
property should be rushed to completion.
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area.
A Hurricane Watch means that hurricane conditions are possible
within the watch area.
Interests in the Northwestern Hawaiian Islands should monitor
the progress of Hurricane Lane.
For storm information specific to your area, please monitor
products issued by the National Weather Service office in
DISCUSSION AND OUTLOOK
At 1100 PM HST (0900 UTC), the center of Hurricane Lane was located
near latitude 18.2 North, longitude 158.0 West. Lane is moving
toward the north near 6 mph (9 km/h), and this general motion is
expected to continue through Friday. A turn toward the west is
anticipated Saturday, with an increase in forward speed. On the
latest forecast track, the center of Lane will move over, or
dangerously close to portions of the main Hawaiian islands late
Friday and Friday night.
Maximum sustained winds are near 120 mph (195 km/h) with higher
gusts. Lane remains a powerful category 3 hurricane on the
Saffir-Simpson Hurricane Wind Scale. Some weakening is forecast
from Friday through late Saturday, but Lane is expected to remain a
hurricane as it approaches the islands.
Hurricane-force winds extend outward up to 35 miles (55 km) from the
center and tropical-storm-force winds extend outward up to 125 miles
The estimated minimum central pressure is 956 mb (28.23 inches).
HAZARDS AFFECTING LAND
WIND: Tropical storm conditions are already occurring on the Big
Island, Maui County and Oahu. These conditions will likely
persist through early Friday morning. Hurricane conditions are
expected over some areas of Maui County and Oahu starting Friday
and continuing through Friday night. Tropical storm or hurricane
conditions are possible on Kauai starting late Friday or Friday
RAINFALL: Rain bands will continue to overspread the Hawaiian
Islands well ahead of Lane. Excessive rainfall associated with this
slow moving hurricane will continue to impact the Hawaiian Islands
into the weekend, leading to significant and life-threatening flash
flooding and landslides. Lane is expected to produce total rain
accumulations of 10 to 20 inches, with localized amounts of 30 to 40
inches possible over portions of the Hawaiian Islands. Over two feet
of rain has already fallen at a few locations on the windward side
of the Big Island.
SURF: Very large swells generated by the slow moving hurricane will
severely impact the Hawaiian Islands over the next couple of days.
These swells will produce extremely large and damaging surf along
exposed west and south facing shorelines. A prolonged period of high
surf will likely lead to significant coastal erosion.
STORM SURGE: The combination of a dangerous storm surge and large
breaking waves will raise water levels by as much as 2 to 4 feet
above normal tide levels along south and west facing shores near
the center of Lane. The surge will be accompanied by large and
Next intermediate advisory at 200 AM HST.
Next complete advisory at 500 AM HST.