NOAA Warns Hawaii To Brace For Up To 30 Inches Of Rain

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WTPA32 PHFO 230918 CCB
TCPCP2

BULLETIN...CORRECTED
Hurricane Lane Advisory Number  35
NWS Central Pacific Hurricane Center Honolulu HI   EP142018
1100 PM HST Wed Aug 22 2018 

...DANGEROUS HURRICANE LANE TRACKING TOWARD THE HAWAIIAN ISLANDS...
 
 
SUMMARY OF 1100 PM HST...0900 UTC...INFORMATION
-----------------------------------------------
LOCATION...16.3N 156.9W
ABOUT 235 MI...380 KM SSW OF KAILUA-KONA HAWAII
ABOUT 350 MI...565 KM S OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...145 MPH...230 KM/H
PRESENT MOVEMENT...NW OR 315 DEGREES AT 7 MPH...11 KM/H
MINIMUM CENTRAL PRESSURE...939 MB...27.73 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 1100 PM HST (0900 UTC), the eye of Hurricane Lane was located
by satellite and radar near latitude 16.3 North, longitude 156.9
West. Lane is moving toward the northwest near 7 mph (11 km/h).
This general motion is expected through Thursday, with a gradual 
turn toward the north-northwest. On Friday, a turn toward the north 
is anticipated as Lane's forward motion slows even more. A turn back 
toward the west is expected on Saturday. On the forecast track, the 
center of Lane will move very close to or over the main Hawaiian 
Islands tomorrow through Friday.
 
Maximum sustained winds remain near 145 mph (230 km/h) with higher 
gusts. Lane is a powerful category 4 hurricane on the Saffir-Simpson 
Hurricane Wind Scale. Some weakening is forecast during the next few 
days, but Lane is expected to remain a hurricane as it approaches 
the 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 
(220 km).
 
The estimated minimum central pressure is 939 mb (27.73 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
WIND: Tropical storm conditions are expected on portions of the Big 
Island beginning early Thursday morning, with hurricane conditions 
expected in some areas Thursday afternoon or Thursday night.
Tropical storm conditions are expected to begin over portions of 
Maui county on Thursday, with hurricane conditions expected in some 
areas Thursday night into Friday. Tropical storm conditions are 
expected to begin on Oahu late Thursday night, with hurricane 
conditions expected Friday into Friday night.
 
RAINFALL: Rain bands from Hurricane Lane will continue to overspread 
the Hawaiian Islands tonight and Thursday. 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.
 
SURF: As Lane is slow-moving, large swells generated by Lane 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 intermediate advisory at 200 AM HST.
Next complete advisory at 500 AM HST.
 
$$ 
Forecaster Birchard

Original Article:http://www.prh.noaa.gov/cphc/tcpages/archive/2018/TCPCP2.EP142018.035.201808230918

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