[Tropical] Hurricane Local Statement

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Tropical Storm Lane Local Statement Advisory Number 45
National Weather Service Honolulu HI  EP142018
525 AM HST Sat Aug 25 2018

This product covers the Hawaiian islands

**LANE MOVING SLOWLY SOUTH OF THE WESTERN HAWAIIAN ISLANDS WITH
CONTINUED THREAT FOR FLOODING OVER THE STATE**

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

* CHANGES TO WATCHES AND WARNINGS:
    - The Tropical Storm Warning has been cancelled for Big Island
      Interior, Big Island North and East, Big Island Summits,
      Kohala, Kona, and South Big Island

* CURRENT WATCHES AND WARNINGS:
    - A Tropical Storm Watch is in effect for Kauai Leeward, Kauai
      Mountains, Kauai Windward, and Niihau
    - A Tropical Storm Warning is in effect for Central Oahu,
      Haleakala Summit, Kahoolawe, 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, Waianae Coast,
      Waianae Mountains, and Windward Haleakala

* STORM INFORMATION:
    - About 110 miles south-southwest of Honolulu
    - 19.8N 158.4W
    - Storm Intensity 60 mph
    - Movement North or 350 degrees at 3 mph

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

Lane remains a tropical storm early this morning, with maximum
sustained winds of 60 mph. As of 5 AM HST, Tropical Storm Lane was
located about 110 miles south-southwest of Honolulu and about
165 miles south-southeast of Lihue. Lane is moving slowly to the north
at 3 mph.

Lane is expected to continue moving slowly northward this morning,
followed by a turn to the west with an increase in forward speed
starting later today or tonight. This forecast track takes south of
Kauai and Niihau later today and tonight. However, regardless of the
storm's track, life threatening flash flooding and gusty winds will
continue to extend far beyond the center's location. Do not focus on
the exact forecast track or intensity of Lane.

Tropical storm conditions are expected in and near outer rain bands
across Maui County and Oahu today. Kauai County remains under a
Tropical Storm Watch, and tropical storm conditions are possible there
starting later today.

Slow moving rain bands associated with Lane continue to affect the
island chain from Oahu eastward to the Big Island early this morning.
Rains have decreased over Maui County and most of the Big Island
during the late night hours, however the potential for additional
excessive rainfall remains high, which would lead to life threatening
flash flooding, as well as landslides. Flooding will be possible in
areas that are typically not prone to flooding. Lane is expected to
produce additional rain of 5 to 10 inches in some areas through the
weekend. 20 to 30 inches of rain has already fallen over some parts of
the windward Big Island, with over 40 inches of rain recorded at a few
locations.

A High Surf Advisory remains in effect through today for the south and
east facing shores of all islands.

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

* FLOODING RAIN:
Potential impacts from the flooding rain are still unfolding across
the Hawaiian islands. Remain well guarded against life-threatening
flood waters having possible extensive to devastating impacts. If
realized, these 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:
Potential impacts from the main wind event are unfolding across Oahu
and Maui County. Remain well sheltered from hazardous wind having
possible limited impacts. If realized, these impacts include:
    - Damage to porches, awnings, carports, sheds, and unanchored
      mobile homes. Unsecured lightweight objects blown about.
    - Many large tree limbs broken off. A few trees snapped or
      uprooted, but with greater numbers in places where trees are
      shallow rooted. Some fences and roadway signs blown over.
    - A few roads impassable from debris, particularly within urban
      or heavily wooded places. Hazardous driving conditions on
      bridges and other elevated roadways.
    - Scattered power and communications outages.

* TORNADOES:
Little to no impacts are anticipated at this time across the Hawaiian
islands.

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

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

* OTHER PREPAREDNESS INFORMATION:
Keep your cell phone charged and in power-saving mode. If you lose
power, use it sparingly and mainly for personal emergencies and
check-ins.

If you are prone to flooding, be prepared for the possibility of
a quick and dramatic rise in water levels.

* 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 by 12 PM HST, or sooner if conditions warrant.

$$

Jacobson
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