Hawaii Flooding: Damage Exceeds $1 Billion as Islands Begin Recovery

Hawaii is grappling with the aftermath of its worst flooding in more than 20 years, triggered by relentless rainfall that saturated the islands. While the worst of the storm appears to have passed, recovery efforts are underway with damage estimates exceeding $1 billion.

Flash Flooding and Evacuations

Heavy rains, fueled by a “Kona low” storm, caused widespread flooding across Oahu, Maui, Molokai, Lanai, Kahoolawe and the Substantial Island. Raging waters lifted homes and cars, prompting evacuation orders for 5,500 people north of Honolulu, though those orders have since been lifted. More than 200 people were rescued from rising waters as of Sunday afternoon, according to Molly Pierce, spokesperson for Oahu’s Department of Emergency Management.

Power Outages and Restoration

Over 2,000 people remained without power on Sunday afternoon. Hawaiian Electric proactively shut off power to customers in Waialua on the North Shore of Oahu on Friday due to the flooding. As of Sunday afternoon, power had been restored to approximately 1,200 customers in Waialua, with an expectation of restoring power to another 2,000 later that day. Approximately 100 people in Maui County were also without power, but all major outages on Hawaii Island had been addressed.

Dam Concerns and Weather Outlook

Officials initially expressed concern about the potential failure of the 120-year-old Wahiawa dam, but those concerns have eased as water levels have dropped. The dam continues to be monitored.

Meteorologist Matthew Foster indicated that the weather had shifted to scattered rain across the islands by Sunday afternoon, with less than 5 inches of rain expected for Hawaii Island and between 1 to 2 inches in other areas. Northeast winds, which blow across more vegetated areas, are expected to help manage the remaining rainfall. Drier, more typical March weather is anticipated by Wednesday. While additional isolated flooding is possible, widespread flooding is less likely.

Economic Impact and Federal Aid

Governor Josh Green estimates the total cost of the storm could exceed $1 billion, encompassing damage to airports, schools, roads, homes, and a hospital in Kula, Maui. He stated that his chief of staff has been in contact with the White House and secured assurances of federal support for the islands.

Boil Water Advisory and Damage Reporting

A boil water notice remains in effect for North Shore areas from Mokuleia to Turtle Bay. Residents are encouraged to report any damages to the city.

Kona Lows and Climate Change

The flooding was caused by winter storm systems known as “Kona lows,” which bring moisture-laden air to the islands. Experts note that the intensity and frequency of heavy rains in Hawaii have increased amid human-caused global warming.