Major Hurricane Lane Set To Impact Hawaii

Situation overview

Major Hurricane Lane is passing roughly 220 miles south of the Big Island this afternoon and has turned 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 its 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 by early Thursday morning, with dangerous hurricane force winds possibly starting Thursday afternoon or Thursday night. In Maui County, damaging winds could begin on Thursday, with dangerous hurricane force winds possible starting Thursday night. On Oahu, damaging winds could begin as early as Thursday night, with dangerous hurricane force winds possible on Friday. Hurricane Warnings may need to be expanded to include Kauai County as Lane draws closer.

Outer rain bands along with thunderstorms associated with Lane, have moved onshore over portions of the Big Island. Bands of intense showers and thunderstorms will continue to spread across the state from the southeast towards the northwest tonight and Thursday. 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.

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 likely occurring over southeast facing shores on the Big Island. Surf is expected to increase tonight and Thursday along southwest facing shores on 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 iconFLOODING RAIN:

Protect against life-threatening rainfall flooding having possible devastating impacts across the main 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 iconWIND:

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 limited to significant impacts across the northern and eastern sections of the Big Island and Kauai.

surge iconSURGE:

Protect against life-threatening surge having possible significant impacts across south and west 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 impact is anticipated.

tornado iconTORNADOES:

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.

If heading to a community shelter, become familiar with the shelter rules before arrival, especially if you have special needs or have pets. Take essential items with you from your Emergency Supplies Kit.

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.

Storm surge is the leading killer associated with tropical storms and hurricanes! Make sure you are in a safe area away from the surge zone. Even if you are not in a surge-prone area, you could find yourself cutoff by flood waters during and after the storm. Heed evacuation orders issued by the 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 a Tornado Warning is issued for your area, be ready to shelter quickly, preferably away from windows and in an interior room not prone to flooding. If driving, scan the roadside for quick shelter options.

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.

[Release & Data via National Hurricane Center]

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