[Tropical] Hurricane Local Statement

Wed Aug 22 10:45:22 CDT 2018

WTHW80 PHFO 221545
HLSHFO
HIZ005>028-222345-

Hurricane Lane Local Statement Advisory Number 32
National Weather Service Honolulu HI  EP142018
545 AM HST Wed Aug 22 2018

This product covers the Hawaiian islands

**POWERFUL HURRICANE LANE CONTINUES MOVING WEST NORTHWESTWARD TOWARD
THE MAIN HAWAIIAN ISLANDS**

NEW INFORMATION
---------------

* CHANGES TO WATCHES AND WARNINGS:
    - A Hurricane Watch has been issued for Kauai Leeward, Kauai
      Mountains, Kauai Windward, and Niihau
    - The Hurricane Watch has been upgraded to a Hurricane Warning
      for Haleakala Summit, Kahoolawe, Lanai Makai, Lanai Mauka,
      Leeward Haleakala, Maui Central Valley, Maui Leeward West, Maui
      Windward West, Molokai Leeward, Molokai Windward, and Windward
      Haleakala

* CURRENT WATCHES AND WARNINGS:
    - A Hurricane Watch is in effect for Central Oahu, Kauai Leeward,
      Kauai Mountains, Kauai Windward, Niihau, Oahu Koolau, Oahu
      North Shore, Oahu South Shore, Olomana, Waianae Coast, and
      Waianae Mountains
    - A Hurricane Warning is in effect for Big Island Interior, Big
      Island North and East, Big Island Summits, Haleakala Summit,
      Kahoolawe, Kohala, Kona, Lanai Makai, Lanai Mauka, Leeward
      Haleakala, Maui Central Valley, Maui Leeward West, Maui
      Windward West, Molokai Leeward, Molokai Windward, South Big
      Island, and Windward Haleakala

* STORM INFORMATION:
    - About 460 miles south-southeast of Honolulu or about 320 miles
      south of Kailua-Kona
    - 15.1N 155.3W
    - Storm Intensity 155 mph
    - Movement West-northwest or 290 degrees at 9 mph

SITUATION OVERVIEW
------------------

Major Hurricane Lane is passing roughly 280 miles south of the Big
Island this morning and has started a turn towards the northwest in
line with the Central Pacific Hurricane Center forecast. The center of
Lane will track dangerously close to the Hawaiian Islands from Thursday
through Saturday. Regardless of the exact track of the storm center,
life threatening impacts are likely over some areas as this strong
hurricane makes it's closest approach. Just a reminder that impacts
from a hurricane extend far from the center of the storm and slight
changes to the forecast track this close to the islands will produce
rapid changes to the local forecast impacts.

The onset of damaging tropical-storm-force winds on the Big Island
could start later this evening, with dangerous hurricane force winds
starting in the overnight hours. In Maui County, damaging winds could
begin as early as Thursday afternoon, with dangerous hurricane force
winds possible starting on Thursday night. On Oahu, damaging winds
could begin as early as Thursday evening, with dangerous hurricane
force winds possible by Friday morning. Hurricane Warnings may need to
be expanded to include other islands as Lane draws closer.

Bands of intense showers and thunderstorms surrounding Lane will begin
to spread across the state from the southeast towards the northwest,
reaching the Big Island later this morning. Excessive rainfall is
possible which could lead to deadly flash flooding, landslides and
mudslides. Flooding can occur even in areas not usually prone to
flooding. Storm total rainfall amounts greater than 20 inches are
possible.

Swell generated by Lane will produce very large and rough surf, with
dangerous rip currents along south, southeast and southwest facing
shores.

Tornadoes and large waterspouts will be possible associated with Lane,
mainly along and to the right of the track of the hurricane.

POTENTIAL IMPACTS
-----------------

* FLOODING RAIN:
Protect against life-threatening rainfall flooding having possible
devastating impacts across the Hawaiian islands. Potential impacts
include:
    - Extreme rainfall flooding may prompt numerous evacuations and
      rescues.
    - Rivers and tributaries may overwhelmingly overflow their banks
      in many places with deep moving water. Small streams, creeks,
      canals, arroyos, and ditches may become raging rivers. In
      mountain areas, deadly runoff may rage down valleys while
      increasing susceptibility to rockslides and mudslides. Flood
      control systems and barriers may become stressed.
    - Flood waters can enter numerous structures within multiple
      communities, some structures becoming uninhabitable or washed
      away. Numerous places where flood waters may cover escape
      routes. Streets and parking lots become rivers of raging water
      with underpasses submerged. Driving conditions become very
      dangerous. Numerous road and bridge closures with some weakened
      or washed out.

* WIND:
Protect against life-threatening wind having possible extensive
impacts across Maui County, Oahu, and western and southern sections
of the Big Island. Potential impacts in this area include:
    - Considerable roof damage to sturdy buildings, with some having
      window, door, and garage door failures leading to structural
      damage. Mobile homes severely damaged, with some destroyed.
      Damage accentuated by airborne projectiles. Locations may be
      uninhabitable for weeks.
    - Many large trees snapped or uprooted along with fences and
      roadway signs blown over.
    - Some roads impassable from large debris, and more within urban
      or heavily wooded places. Several bridges, causeways, and
      access routes impassable.
    - Large areas with power and communications outages.

Also, protect against dangerous wind having possible significant
impacts across the northern and eastern sections of the Big Island and
Kauai.

* SURGE:
Protect against life-threatening surge having possible significant
impacts across south and west facing coasts. Potential impacts in
this area include:
    - Areas of inundation with storm surge flooding accentuated by
      waves. Damage to several buildings, mainly near the coast.
    - Sections of near-shore escape routes and secondary roads become
      weakened or washed out, especially in usually vulnerable low
      spots.
    - Major beach erosion with heavy surf breaching dunes. Strong and
      numerous rip currents.
    - Moderate damage to marinas, docks, boardwalks, and piers.
      Several small craft broken away from moorings, especially in
      unprotected anchorages.

Elsewhere across the Hawaiian islands, little to no impact is
anticipated.

* TORNADOES:
Protect against a tornado event having possible limited impacts
across the Hawaiian islands. Potential impacts include:
    - The occurrence of isolated tornadoes can hinder the execution
      of emergency plans during tropical events.
    - A few places may experience tornado damage, along with power
      and communications disruptions.
    - Locations could realize roofs peeled off buildings, chimneys
      toppled, mobile homes pushed off foundations or overturned,
      large tree tops and branches snapped off, shallow-rooted trees
      knocked over, moving vehicles blown off roads, and small boats
      pulled from moorings.

PRECAUTIONARY/PREPAREDNESS ACTIONS
----------------------------------

* EVACUATIONS:
Listen to local official for recommended preparedness actions, including
possible evacuation. If ordered to evacuate, do so immediately.

For those not under evacuation orders, assess the risk from wind, falling
trees, and flooding at your location. If you decide to move, relocate to a
safer location nearby. If you do not relocate, help keep roadways open
for those under evacuation orders.

If evacuating, leave with a destination in mind and allow extra time to get
there. Take your emergency supplies kit. Gas up your vehicle ahead of time.

Let others know where you are going prior to departure. Secure loose items
and pets in the car, and avoid distracted driving.

If evacuating, follow designated evacuation routes. Seek traffic information
on roadway signs, the radio, and from official sources.

* OTHER PREPAREDNESS INFORMATION:
Now is the time to complete all preparations to protect life and
property in accordance with your emergency plan. Ensure you are in a
safe location before the onset of strong winds or possible flooding.

If you are relocating to safe shelter, leave as early as possible.
Allow extra time to reach your destination. Many roads and bridges
will be closed once strong winds arrive. Check the latest weather
forecast before departing and drive with caution.

Keep cell phones well charged. Cell phone chargers for automobiles
can be helpful, but be aware of your risk for deadly carbon monoxide
poisoning if your car is left idling in a garage or other poorly
ventilated area.

It is important to remain calm, informed, and focused during an
emergency. Be patient and helpful with those you encounter.

If you are a visitor, be sure to know the name of the city or town in
which you are staying and the name of the county or parish in which
it resides. Listen for these locations in local news updates. Pay
attention for instructions from local authorities.

Rapidly rising flood waters are deadly. If you are in a flood-prone
area, consider moving to higher ground. Never drive through a flooded
roadway. Remember, turn around don't drown!

If in a place that is vulnerable to high wind, such as near large
trees, a manufactured home, upper floors of a high-rise building, or
on a boat, consider moving to a safer shelter before the onset of
strong winds or flooding.

Closely monitor weather.gov, NOAA Weather radio or local news outlets
for official storm information. Be ready to adapt to possible changes
to the forecast. Ensure you have multiple ways to receive weather
warnings.

* ADDITIONAL SOURCES OF INFORMATION:
- For information on appropriate preparations see ready.gov
- For information on creating an emergency plan see getagameplan.org
- For additional disaster preparedness information see redcross.org

NEXT UPDATE
-----------

The next local statement will be issued by the National Weather
Service in Honolulu HI around NOON HST, or sooner if conditions
warrant.

$$

RCB
This weather bulletin was brought to you by:
www.nashvilleweather.net