HURRICANE LOCAL STATEMENT

This product covers the Hawaiian islands

OLIVIA SLOWS DOWN BUT STILL MOVING TOWARD MAUI COUNTY AND THE BIG ISLAND

NEW INFORMATION

• CHANGES TO WATCHES AND WARNINGS:
• None
• CURRENT WATCHES AND WARNINGS:
• A Tropical Storm Warning is in effect for Big Island Interior,
  Big Island North and East, Big Island Summits, Central Oahu,
  Haleakala Summit, Kahoolawe, Kauai Leeward, Kauai Mountains,
  Kauai Windward, Kohala, Kona, Lanai Makai, Lanai Mauka, Leeward
  Haleakala, Maui Central Valley, Maui Leeward West, Maui
  Windward West, Molokai Leeward, Molokai Windward, Niihau, Oahu
  Koolau, Oahu North Shore, Oahu South Shore, Olomana, South Big
  Island, Waianae Coast, Waianae Mountains, and Windward Haleakala
• STORM INFORMATION:
• About 230 miles east of Honolulu or about 90 miles
  north-northeast of Hilo
• 20.8N 154.4W
• Storm Intensity 50 mph
• Movement Southwest or 235 degrees at 8 mph

SITUATION OVERVIEW

Tropical Storm Olivia continues to approach the state from the
east. Strong winds, heavy rainfall, and high surf will impact the
islands tonight through Thursday.
Winds are already increasing over Maui County and parts of the Big
Island ahead of Olivia, and winds will be on the increase over Oahu
tonight. More widespread tropical storm force winds and wind gusts
are expected to reach Maui and portions of the Big Island overnight,
and Oahu early Wednesday morning as Olivia draws closer to the state.
Kauai will see winds on the increase late tonight, with more widespread
tropical storm force winds and wind gusts arriving Wednesday.
The mountainous terrain of the islands will produce localized areas of
highly enhanced winds well ahead of Olivia, which can cause damage
before the onset of widespread tropical storm force winds.
Additionally, hurricane force wind gusts are possible with Olivia and
with the terrain enhanced winds, well away from the tropical cyclone
center.
It is important to not focus on the exact forecast track and intensity
of Olivia. Regardless of the track that Olivia takes as it approaches
the islands, significant impacts can be expected away from the center.
Showers will continue to increase tonight with the chance for flooding
rainfall increasing rapidly overnight, and remaining a significant
threat through Thursday night. Expect rainfall totals of 5 to
10 inches, with isolated areas reaching up to 15 inches. Much of this
rainfall will be focused on windward areas of the islands, especially
from Oahu through the Big Island. However, flooding is still a
significant threat for all areas, particularly as Olivia moves over
the islands.
Swells and surf generated by Olivia will continue to build along east
facing shores, reaching damaging levels overnight and Wednesday.
Surf heights along east facing shores are expected to reach 12 to 20
feet on Oahu, Molokai, Maui and the Big Island. Along the east
facing shores of Kauai and Lanai, expect surf to reach 10 to 14 feet.
This surf is expected to result in significant beach erosion and
overwash onto vulnerable coastal roadways, particularly during high
tides.

POTENTIAL IMPACTS

• WIND:
  Potential impacts from the main wind event are now unfolding across
  Maui County. Remain well sheltered from dangerous wind having possible
  significant impacts. If realized, these impacts include:
• Some damage to roofing and siding materials, along with damage
  to porches, awnings, carports, and sheds. A few buildings
  experiencing window, door, and garage door failures. Mobile
  homes damaged, especially if unanchored. Unsecured lightweight
  objects become dangerous projectiles.
• Several large trees snapped or uprooted, but with greater
  numbers in places where trees are shallow rooted. Several
  fences and roadway signs blown over.
• Some roads impassable from large debris, and more within urban
  or heavily wooded places. A few bridges, causeways, and access
  routes impassable.
• Scattered power and communications outages, but more prevalent
  in areas with above ground lines.
  Potential impacts from the main wind event are also now unfolding
  across the Big Island, Oahu and Kauai. Remain well sheltered from
  hazardous wind having possible impacts, including damage to
  porches, awnings, carports, sheds, and unanchored mobile homes.
  Unsecured lightweight objects will be blown about. Many large tree
  limbs will be broken off, with a few trees snapped or uprooted. 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.
• FLOODING RAIN:
  Potential impacts from the flooding rain are still unfolding across
  Maui. Remain well guarded against life-threatening flood waters having
  possible 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.
  Potential impacts from the flooding rain are still unfolding across
  the remainder of the state of Hawaii. Remain well guarded against
  life-threatening flood waters having possible extensive impacts. A Flash
  Flood Watch remains in effect for the state through Thursday night.
• OTHER COASTAL HAZARDS:
  Large and dangerous surf and strong rip currents will continue along east
  facing shores. Prepare for overwash of low lying areas and roadways with
  localized beach erosion around high tide. A High Surf Warning is in effect
  for east facing shores of the Big Island, parts of Maui County, and Oahu,
  and a High Surf Advisory is in effect for east facing shores of Lanai and
  Kauai.

PRECAUTIONARY/PREPAREDNESS ACTIONS

• EVACUATIONS:
  Listen to local official for recommended preparedness actions, including
  possible evacuation. If ordered to evacuate, do so immediately.
• OTHER PREPAREDNESS INFORMATION:
  Now is the time to stay inside and away from windows. Listen for
  updates and be ready in case you lose electrical power. Keep a
  battery-powered radio, charged cell phone and flashlight handy.
  During the peak of the storm be ready to move quickly. Keep your
  shoes on and rain gear handy. Boots and athletic shoes offer the best
  foot protection if you become unexpectedly exposed to the weather.
  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