UPDATE: Flood advisory extended for parts of Big Island as moderate rainfall continues
Update at 6:42 p.m. Sept. 26, 2026: The flood advisory in effect for southeastern slopes of the Big Island was extended to 9:45 p.m.
Emergency management officials reported shortly after 6 p.m. Saturday that portions of Highway 11 remain closed in both directions because flooding. Locations include:
- Between Pinao Street and Kaʻaluʻalu Road in Waiʻōhinu.
- Between Nāʻālehu and Nīnole.
- Kaʻalāiki Road remains near the intersection with Highway 11 in Nāʻālehu.
Areas of moderate rain will continue to move into southeast portions of the Big Island during the next few hours, with rain now falling at rates generally of half an inch to 1 inch per hour.
Some locations that will experience flooding include Hawaiian Paradise Park, Hawaiʻi Volcanoes National Park, Wood Valley, Volcano, Pāhala, Glenwood, Punaluʻu Black Sand Beach, Kāwā Flats, Mountain View and Hawaiian Acres.
Story originally posted 5:01 p.m. Sept. 26, 2026: A new flood advisory is also now in effect until 6:45 p.m. for several locations on the Big Island as flooding caused by excessive rainfall is expected, resulting in minor flooding on roads and in poor drainage areas and streams.
National Weather Service doppler radar indicated at 3:48 p.m. moderate rain falling over the southeast slopes of the island, mainly between Nāʻālehu and Wood Valley.
Hawaiʻi County Civil Defense also reported flooding on Kaʻalāiki Road near Highway 11 in Nāʻālehu and a portion of Highway 11 in Waiʻōhinu, prompting road closures.
Minor flooding is ongoing or expected to begin shortly in the advisory area. Rain was falling at half an inch to 1 inch per hour.
Some locations that will experience flooding include Hawaiian Paradise Park, Hawaiʻi Volcanoes National Park, Wood Valley, Volcano, Pāhala, Glenwood, Punaluʻu Black Sand Beach, Kāwā Flats, Mountain View and Hawaiian Acres.
The public should stay away from streams, drainage ditches and low-lying areas prone to flooding.
A flood watch also remains in effect until 6 p.m. for the entire Big Island.
