DANGEROUS HURRICANE LANE ABOUT 215 MILES SOUTH OF HONOLULU
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 HAWAIIAN ISLANDS...
...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 Kahoolawe
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 Honolulu Hawaii.
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 night.
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 destructive waves.