· ·

Record-shattering rains trigger destructive floods in Hawaii, 699 mm (27 inches) in 24 hours


An upper level low west of Kauai and ample deep moisture have worked together to produce record-shattering rains in parts of Hawaii over the weekend. At least two homes were swept away by raging floodwaters and dozens more damaged. The hardest-hit area is between Hanalei and Haena. There are no reports of deaths or injuries at this time. 

Hawaii Governor David Ige issued an emergency proclamation for the island of Kauai on Sunday, April 15, 2018, after NWS gauges in Hanalei recorded record-shattering 699 mm (27.52 inches) of rain in a 24-hour period that ended 05:00 HST, April 15. Of the total amount, 213.3 mm (8.4 inches) fell between 11:00 HST on Saturday and 02:00 on Sunday.

"This beats all 1- and 2- day rainfall records at Hanalei," the NWS office in Honolulu said.

The previous 24-hour record for the island was 318 mm (12.52 inches), set in March 2012. During the same weather event, Hanalei recorded 609.6 mm (24 inches) in a 48-hour period and 838.2 mm (33 inches) in 72 hours. NWS records for the region date back to 1905.

The Hanalei River was at 4.49 m (14.76 feet) early Sunday morning, well above the 2.3 m (7.7 foot) flood stage.

Wainiha recorded 466.8 mm (18.38 inches) in a 24-hr period, Mount Waialeale 335.7 mm (13.22 inches) and Princeville Airport 246.6 mm (9.71 inches), with 159.5 mm (6.28 inches) falling between 03:00 and 07:00 HST, Sunday.

Island authorities sent first responders and helicopters to search for residents in need of rescue but they had to be grounded when heavy rainfall continued, Kauai County officials said.

At least two homes were destroyed and dozens were damaged or flooded in Hanalei, Wainiha, Haena, and Anahola, the county spokesperson said, adding that about 40 people are staying at the shelter in Hanalei.

The two homes destroyed were ripped from their foundations Saturday along Wainiha Powerhouse Road on the northern side of the island, local media reported. Officials believe they were vacant.

Floodwaters destroy a house in Kauai, Hawaii on April 14, 2018

Image credit: Kresta Kay

Mudslides were reported on several major roads, including Kuhio Highway. The highway remains closed at several points.

Power and water outages are reported across the island.

The Hanalei Elementary school will be closed on Monday, county officials said.

Featured image: Home destroyed by flash floods in Hawaii on April 14, 2018. Credit: Kresta Kay

If you value what we do here, create your ad-free account and support our journalism.


Related articles

Producing content you read on this website takes a lot of time, effort, and hard work. If you value what we do here, select the level of your support and register your account.

Your support makes this project fully self-sustainable and keeps us independent and focused on the content we love to create and share.

All our supporters can browse the website without ads, allowing much faster speeds and a clean interface. Your comments will be instantly approved and you’ll have a direct line of communication with us from within your account dashboard. You can suggest new features and apps and you’ll be able to use them before they go live.

You can choose the level of your support.

Stay kind, vigilant and ready!

$5 /month

  • Ad-free account
  • Instant comments
  • Direct communication
  • New features and apps suggestions
  • Early access to new apps and features

$50 /year

$10 /month

  • Ad-free account
  • Instant comments
  • Direct communication
  • New features and apps suggestions
  • Early access to new apps and features

$100 /year

$25 /month

  • Ad-free account
  • Instant comments
  • Direct communication
  • New features and apps suggestions
  • Early access to new apps and features

$200 /year

You can also support us by sending us a one-off payment using PayPal:


  1. Gravitational Pulls from planet X; will become greater as she gets closer….by the time she pulls up to the planet earth will become a Saturday morning cartoon called Land of the lost…… God will only need too bring back the dinosaurs…….too be perfect……last Time she rolled by she caused the Ice age…

Leave a reply