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Hurricane Lane Advisory Number 31
NWS Central Pacific Hurricane Center Honolulu HI EP142018
1100 PM HST Tue Aug 21 2018
...POWERFUL HURRICANE LANE MOVING WEST NORTHWESTWARD TOWARD THE
MAIN HAWAIIAN ISLANDS...
SUMMARY OF 1100 PM HST...0900 UTC...INFORMATION
ABOUT 350 MI...565 KM SSE OF KAILUA-KONA HAWAII
ABOUT 505 MI...815 KM SSE OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...160 MPH...260 KM/H
PRESENT MOVEMENT...WNW OR 285 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...930 MB...27.47 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Hurricane Warning is in effect for...
* Hawaii County
A Hurricane Watch is in effect for...
* Maui County...including the islands of Maui, Lanai, Molokai and
A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area. A warning is typically issued
36 hours before the anticipated first occurrence of tropical-storm-
force winds, conditions that make outside preparations difficult
or dangerous. Preparations to protect life and property should be
rushed to completion.
A Hurricane Watch means that hurricane conditions are possible
within the watch area. A watch is typically issued 48 hours before
the anticipated first occurrence of tropical-storm-force winds,
conditions that make outside preparations difficult or dangerous.
Interests elsewhere in the main Hawaiian Islands, and across the
Northwestern Hawaiian Islands, should continue to closely monitor
the progress of Hurricane Lane. Additional Tropical Storm or
Hurricane Watches or Warnings may be issued tonight or Wednesday.
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 14.7 North, longitude 154.5 West. Lane is moving
toward the west-northwest near 9 mph (15 km/h) and this motion is
expected to continue tonight. A turn toward the northwest is
expected on Wednesday, followed by a turn to the north-northwest on
Thursday. On the forecast track, the center of Lane will move very
close to or over the main Hawaiian Islands from Thursday through
Maximum sustained winds are near 160 mph (260 km/h) with higher
gusts. Lane is a category 5 hurricane on the Saffir-Simpson
Hurricane Wind Scale. Slow weakening is forecast during the next 48
hours, but Lane is forecast to remain a dangerous hurricane as it
draws closer to the Hawaiian Islands.
Hurricane-force winds extend outward up to 40 miles (65 km) from the
center and tropical-storm-force winds extend outward up to 140 miles
The estimated minimum central pressure is 930 mb (27.47 inches).
HAZARDS AFFECTING LAND
WIND: Tropical storm conditions are expected within the
Hurricane Warning area beginning late Wednesday night into
early Thursday morning, with hurricane conditions expected
somewhere within the warning area on Thursday. Tropical storm
conditions are possible within the Hurricane Watch area beginning
Thursday into Thursday night, with hurricane conditions possible
late Thursday night into Friday.
RAINFALL: Excessive rainfall associated with Lane is expected
to affect portions of the Hawaiian Islands from late Wednesday into
the weekend, leading to flash flooding and landslides. Lane is
expected to produce total rain accumulations of 10 to 15 inches with
isolated amounts greater than 20 inches over the Hawaiian Islands.
SURF: Large swells generated by Lane will impact the Hawaiian
Islands, beginning tonight on the Big Island, spreading
across the remainder of the island chain on Wednesday. These
swells will produce large and potentially damaging surf along
exposed west, south and east facing shorelines.
Next intermediate advisory at 200 AM HST.
Next complete advisory at 500 AM HST.