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Hurricane Lane Intermediate Advisory Number 36A
NWS Central Pacific Hurricane Center Honolulu HI   EP142018
800 AM HST Thu Aug 23 2018
 
...LANE CONTINUES TO APPROACH THE MAIN HAWAIIAN ISLANDS WITH 
TORRENTIAL RAINFALL ALREADY OCCURRING IN SOME AREAS...
 
 
SUMMARY OF 800 AM HST...1800 UTC...INFORMATION
----------------------------------------------
LOCATION...17.1N 157.6W
ABOUT 205 MI...330 KM SW OF KAILUA-KONA HAWAII
ABOUT 290 MI...465 KM S OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...130 MPH...215 KM/H
PRESENT MOVEMENT...NW OR 320 DEGREES AT 7 MPH...11 KM/H
MINIMUM CENTRAL PRESSURE...949 MB...28.03 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
 
None.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
 
A Hurricane Warning is in effect for...
* Oahu
* Maui County...including the islands of Maui, Lanai, Molokai and
Kahoolawe
* 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. 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 in the 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 800 AM HST (1800 UTC), the center of Hurricane Lane was located
by satellite and radar imagery near near latitude 17.1 North,
longitude 157.6 West. Lane is moving toward the northwest near 7 mph
(11 km/h). A turn toward the north-northwest and little change in
forward speed is expected today. A turn toward the north is
anticipated tonight and Friday, as Lane's forward motion slows. A
turn toward the west is expected on Saturday and Sunday, with an
increase in forward speed. On the forecast track, the center of Lane
will move very close to or over the portions of the main Hawaiian
islands later today through Friday.
 
Maximum sustained winds are near 130 mph (215 km/h) with higher
gusts. Lane is a powerful category 4 hurricane on the Saffir-Simpson
Hurricane Wind Scale. Steady weakening is forecast during the next
couple of days. Lane is expected to remain a hurricane as it draws
closer to 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 140
miles (220 km). NOAA buoy 51002 located about 250 miles southwest of
the Big Island recently reported sustained winds of 71 mph (114
km/h) and a gust of 94 mph (151 km/h).
 
The estimated minimum central pressure is 949 mb (28.03 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
WIND: Tropical storm conditions are expected on portions of the Big
Island beginning later this morning, with hurricane conditions
expected in some areas by tonight. Tropical storm conditions are
expected to begin over portions of Maui County later today,
with hurricane conditions expected in some areas by Friday.
Tropical storm conditions are expected to begin on Oahu late
tonight, with hurricane conditions expected Friday into Friday
night.
 
RAINFALL: Rain bands from Hurricane Lane will continue to overspread
the Hawaiian Islands. Excessive rainfall associated with Lane will
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 in excess of 30 inches over the Hawaiian Islands.
Over 12 inches of rain has already fallen on portions of the Big
Island.
 
SURF: As Lane is slow-moving, large swells generated by the
hurricane  will severely impact the Hawaiian Islands over the next
couple of days. These swells will produce very 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.
 
 
NEXT ADVISORY
-------------
Next complete advisory at 1100 AM HST.
 
$$
Forecaster R Ballard
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