NWS Hurricane Lane Intermediate Advisory Number 40

WTPA32 PHFO 241452

TCPCP2

 

BULLETIN

Hurricane Lane Advisory Number  40

NWS Central Pacific Hurricane Center Honolulu HI   EP142018

500 AM HST Fri Aug 24 2018

 

...DANGEROUS HURRICANE LANE MOVING SLOWLY NORTH TOWARD

THE MAIN HAWAIIAN ISLANDS...

...CATASTROPHIC FLOODING OCCURRING ON THE BIG ISLAND OF

HAWAII...

 

 

SUMMARY OF 500 AM HST...1500 UTC...INFORMATION

----------------------------------------------

LOCATION...18.7N 158.0W

ABOUT 180 MI...290 KM S OF HONOLULU HAWAII

ABOUT 145 MI...235 KM WSW OF KAILUA-KONA HAWAII

MAXIMUM SUSTAINED WINDS...110 MPH...175 KM/H

PRESENT MOVEMENT...N OR 360 DEGREES AT 5 MPH...7 KM/H

MINIMUM CENTRAL PRESSURE...962 MB...28.41 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

 

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 500 AM HST (1500 UTC), the center of Hurricane Lane was located

near latitude 18.7 North, longitude 158.0 West. Lane is moving

toward the north near 5 mph (7 km/h), and this general motion is

expected to continue through tonight. A turn toward the west is

anticipated on Saturday, with an increase in forward speed. On the

latest forecast track, the center of Lane will move dangerously

close to portions of the central Hawaiian islands later today and

tonight.

 

Maximum sustained winds are near 110 mph (175 km/h) with higher

gusts. Lane is now category 2 hurricane on the Saffir-Simpson

Hurricane Wind Scale. Some additional weakening is forecast later

today and tonight, but Lane is expected to remain a dangerous

hurricane as it approaches the islands. Further weakening is

expected on Saturday.


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).

 

The estimated minimum central pressure is 962 mb (28.41 inches).

 

 

HAZARDS AFFECTING LAND

----------------------

WIND: Tropical storm conditions are already occurring on the Big

Island, Maui County and Oahu. These conditions will likely persist

today. Hurricane conditions are expected over some areas of Maui

County and Oahu starting tonight. Tropical storm or hurricane

conditions are possible on Kauai starting tonight or Saturday.

 

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 catastrophic and life-threatening flash

flooding and landslides. Lane is expected to produce total rain

accumulations of 10 to 20 inches, with localized amounts up to 40

inches possible over portions of the Hawaiian Islands. Over 30

inches of rain has already fallen at a couple 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 into this weekend. These swells

will produce life-threatening and damaging surf along exposed

shorelines, particularly today through Saturday. In addition, a

prolonged period of extreme surf will also 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 800 AM HST.

Next complete advisory at 1100 AM HST.

 

$$

Forecaster Houston


title

Content Goes Here