[Tropical] Hurricane Local Statement

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Hurricane Lane Local Statement Advisory Number 35
National Weather Service Honolulu HI  EP142018
1200 AM HST Thu Aug 23 2018

This product covers the Hawaiian islands

**DANGEROUS HURRICANE LANE TRACKING TOWARD THE HAWAIIAN ISLANDS**

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

* CHANGES TO WATCHES AND WARNINGS:
    - None

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

* STORM INFORMATION:
    - About 350 miles south-southeast of Honolulu or about 240 miles
      south-southwest of Kailua-Kona
    - 16.3N 156.9W
    - Storm Intensity 145 mph
    - Movement Northwest or 315 degrees at 7 mph

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

Hurricane Lane remains a major category 4 storm this evening, with
maximum sustained winds of 145 mph. As of 11 PM, Hurricane Lane was
located around 235 miles south-southwest of Kailua-Kona, Hawaii and
350 miles south-southeast of Honolulu, Hawaii. Lane is moving
northwestward at around 7 mph. This general motion is expected to
continue tonight, with a turn more towards the north expected Thursday
through Friday. A turn back toward the west is then expected on
Saturday. The latest forecast track from the Central Pacific Hurricane
Center brings the center of Lane dangerously close to the Hawaiian
Islands during the Thursday through Saturday time frame. Regardless of
the exact track of the storm, life threatening impacts are likely over
many areas as this strong hurricane makes its closest approach. All
individuals in Hawaii are urged not to focus on the exact forecast
track or intensity of Lane, and be prepared for adjustments in future
forecast updates. Although the official forecast does not explicitly
indicate Lane's center making landfall over any of the islands, this
could still occur.

The onset of damaging tropical storm-force winds on the Big Island
could occur by early Thursday morning, with dangerous hurricane force
winds expected in some areas Thursday afternoon or Thursday night. In
Maui County, damaging tropical storm-force winds could begin late
Thursday, with dangerous hurricane force winds expected Thursday night
into Friday. On Oahu, damaging tropical storm force winds could begin
as early as late Thursday night, with dangerous hurricane force winds
expected Friday into Friday night. Hurricane Warnings may need to be
expanded to Kauai County as Lane draws closer.

Outer rain bands and embedded thunderstorms associated with Hurricane
Lane, are already producing heavy rainfall and flash flooding on the
Big Island. Bands of intense showers and thunderstorms will continue
to spread across the other islands from south-southeast to
north-northwest tonight through Friday. Excessive rainfall is likely
which could result in life threatening flash flooding, as well as
landslides and mudslides. Flooding from these heavy rains will also be
possible in areas that are typically not prone to flooding. Storm
total rainfall amounts greater than 30 inches are possible.

Swells generated by Lane will produce very large and rough surf, with
dangerous rip currents along south, southeast and southwest facing
shores. Large surf is already occurring along southeast facing shores
of the Big Island. Surf is expected to increase later tonight and
Thursday along southwest facing shores of the Big Island as well as
along south and southeast facing shores from Maui County to Kauai
County.

Tornadoes and large waterspouts will be possible 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 southeast, south and southwest facing coastlines.
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 surge impact is
expected at this time.

* 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.

Do not enter evacuated areas until officials have given the all clear
to return.

* 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.

Failure to adequately shelter may result in serious injury or loss of
life. Always heed the advice of local officials and comply with any
orders that are issued. Remember, during the storm 9 1 1 Emergency
Services may not be able to immediately respond if conditions are
unsafe. This should be a big factor in your decision making.

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 6 AM HST, or sooner if conditions
warrant.

$$
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