Dec 5, 2021
A surface front and a deep upper low, known locally as a kona low, produced heavy and sustained showers and thunderstorms as tropical moisture was pulled north over the Aloha State. The downpours also led to instances of flash flooding. Also, high winds and wintry conditions affected the mountain summits on the Big Island and Haleakala on Maui. No significant injuries were reported. The costs of any damages were not available.
Source: NOAA National Weather Service Storm Events Database (event 991911). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Maui County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.