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Hurricane Lane Advisory Number 29
NWS Central Pacific Hurricane Center Honolulu HI EP142018
500 PM HST Tue Aug 21 2018
...POWERFUL HURRICANE LANE CONTINUES MOVING CLOSER TO THE HAWAIIAN
...HURRICANE WARNING ISSUED FOR HAWAII COUNTY...
SUMMARY OF 500 PM HST...0300 UTC...INFORMATION
ABOUT 375 MI...605 KM SSE OF KAILUA-KONA HAWAII
ABOUT 535 MI...860 KM SSE OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...155 MPH...250 KM/H
PRESENT MOVEMENT...WNW OR 285 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...929 MB...27.44 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
A Hurricane Warning has been issued for Hawaii County.
A Hurricane Watch has been issued for Oahu.
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 500 PM HST (0300 UTC), the center of Hurricane Lane was located
near latitude 14.5 North, longitude 154.0 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 155 mph (250 km/h) with higher
gusts. Lane is a category 4 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 929 mb (27.44 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 800 PM HST.
Next complete advisory at 1100 PM HST.