Jan 25, 2021
Strong high pressure far northeast of the islands and an upper trough to the southwest caused low level moisture to flow over the state from the southeast. Instability from the trough brought heavy showers, isolated thunderstorms, and flash flooding, mainly over the Big Island and Oahu. Snow also accumulated above 6 inches at the summits of Mauna Kea and Mauna Loa on the Big Island. No serious injuries were reported. The costs of any property damage were not available.
Source: NOAA National Weather Service Storm Events Database (event 932532). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Hawaii County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.