Kona Low Continues, Flood Alerts Issued for Most Hawaiian Islands

Heavy rain and potential flash flooding expected through Sunday afternoon

Mar. 22, 2026 at 6:52pm

Got story updates? Submit your updates here. ›

A Kona Low weather system north of the Hawaiian islands has brought intense moisture and heavy rainfall, leading the National Weather Service to issue a Flood Watch for Oahu, Molokai, Maui County, Lanai, Kahoolawe, and Hawaii Island. The most rain is expected to be focused on Maui County and Oahu, with the potential for flash flooding, overflowing streams, and landslides in steep terrain.

Why it matters

Severe weather events like the ongoing Kona Low can pose significant risks to public safety, infrastructure, and property across the Hawaiian islands. Accurate forecasting and timely alerts are crucial for residents and authorities to prepare and respond effectively.

The details

The National Weather Service radar has detected heavy showers and thunderstorms continuing over Molokai, with the most intense rainfall rates of 1-2 inches per hour. Water levels remain elevated in Kawela Gulch and Halawa Stream, leading to a Flash Flood Warning for Molokai until 11:30 a.m. The Flood Watch in effect for the other islands is due to the Kona Low drawing intense moisture northward, resulting in rounds of moderate to heavy rain expected to last through Sunday night.

  • The Flood Watch continues through Sunday afternoon for Oahu, Molokai, Maui County, Lanai, Kahoolawe, and Hawaii Island.
  • A Flash Flood Warning is in effect for Molokai until 11:30 a.m. on Sunday, March 22.

The players

National Weather Service

The federal agency responsible for weather forecasting and issuing alerts and warnings for the United States, including the Hawaiian islands.

Got photos? Submit your photos here. ›

What’s next

Residents and authorities in the affected areas should continue to monitor weather conditions and be prepared to take appropriate actions to ensure safety and minimize potential damage.

The takeaway

The ongoing Kona Low weather system serves as a reminder of the importance of being prepared for severe weather events in Hawaii, which can quickly lead to dangerous flooding, landslides, and other hazardous conditions that require prompt action to protect lives and property.