NWS warns of potential life-threatening impact for Hurricane Lane, 21 August 2018

Accessed on 22 August 2018, 0422 UTC, Post #17471.



Reporter:  John Burnett.

Please click link to read the full report and to view the tracking map.


The National Weather Service has issued a hurricane watch/warning for the entire state of Hawaii as Hurricane Lane nudges closer to the islands.

Here is the National Weather Service message posted shortly after 2 p.m. HST.

“Hurricane Lane is passing to the south-southeast of the Big Island today and is expected to begin a turn northwest toward the islands tonight and Wednesday. The center of Lane will track dangerously close to, or over the islands Thursday through Saturday. Regardless of the exact track of the center, major impacts are likely in some areas as the hurricane makes its closest approach. It is important to remember, these impacts can extend far from the center.

The onset of damaging tropical storm force winds on the Big Island could be as early as Wednesday afternoon or evening, with dangerous hurricane force winds possible by Wednesday night. On Maui County, damaging tropical storm force winds could begin as early as Wednesday night, with dangerous hurricane force winds possible starting on Thursday. Hurricane Watches may be needed for other areas as Lane draws closer.

Bands of intense showers and thunderstorms surrounding Lane will begin to overspread the state from south to north, reaching the Big Island late tonight or Wednesday morning. Excessive rainfall is possible which could lead to major 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 bring very large and rough surf and dangerous rip currents for south and southeast facing shores.

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


Prepare for life-threatening wind having possible extensive impacts across Oahu, Maui, Molokai, Lanai and 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.


Prepare for 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.


Prepare for 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.


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.


Now is the time to check your emergency plan and emergency supplies kit and take necessary actions to protect your family and secure your home or business.

When making safety and preparedness decisions, do not focus on the exact forecast track since hazards such as flooding rain, damaging wind gusts, storm surge, and tornadoes extend well away from the center of the storm.

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, plan to move to safe shelter.

If you live in a place particularly vulnerable to flooding, such as near the ocean or a large inland lake, in a low-lying or poor drainage area, in a valley, or near an already swollen river, plan to move to safe shelter on higher ground.

Always heed the advice of local officials and comply with orders that are issued. Do not needlessly jeopardize your life or the lives of others.

When securing your property, outside preparations should be concluded as soon as possible before conditions deteriorate. The onset of strong gusty winds or flooding can cause certain preparedness activities to become unsafe.

Be sure to let friends and family members know of your intentions for weathering the storm and your whereabouts. Have someone located away from the threatened area serve as your point of contact. Share vital contact information with others. Keep cell phones handy and charged.

Check on those who may not be fully aware of the situation or who are unable to make personal preparations.

If you are a visitor, know the name of the island on which you are staying and where it is relative to current watches and warnings. If staying at a hotel, ask the management staff about their onsite disaster plan. Listen for evacuation orders, especially pertaining to area visitors.

Closely monitor weather.gov, NOAA Weather Radio and local news outlets for official storm information. Listen for possible changes to the forecast.

There is a threat from tornadoes with this storm. Have multiple ways to receive Tornado Warnings. Be ready to shelter quickly.”

For the latest Hawaii Island, West Hawaii, Hawaii State, and local sports news, please check the blog sidebars and links.  These news feeds are updated daily. Thanks for joining us today.

Until next time,

Russ Roberts