Flood Watch Issued for Hawaii Island and Maui County Amid Tropical Cyclone Potential
A flood watch has been issued for Hawaii Island and Maui County due to the potential development of a tropical cyclone.
Honolulu, HI, September 22, 2026 — A flood watch has been issued for Hawaii Island and Maui County, authorities announced. This advisory signals that conditions are favorable for flash flooding and heavy rainfall in these areas, prompted by the potential development of a tropical cyclone. Residents and visitors are urged to stay informed about weather updates and heed any official advisories or evacuation orders that may be issued by local emergency management agencies.
The National Weather Service typically issues a flood watch when conditions are conducive to the development of excessive rainfall and subsequent flooding. While not an immediate threat of flooding, the watch serves as an alert for the possibility of significant weather impacts developing within the next 24 to 48 hours, or as specified by the issuing agency. The specific nature and intensity of any developing tropical cyclone, and its projected track, will determine the exact threat level for Hawaii Island and Maui County.
Information regarding the specific timing, expected rainfall amounts, and potential storm surge associated with this developing weather system was not immediately detailed in the initial advisory. Emergency management officials typically advise preparedness measures, such as securing outdoor items, ensuring emergency kits are stocked, and having a plan for potential power outages or travel disruptions. The contractor responsible for implementing any necessary precautionary measures was not specified.
The areas under the flood watch include all of Hawaii Island, encompassing districts like Kaʻū, Puna, Hilo, Hamakua, North and South Kohala, and North and South Kona. In Maui County, the watch covers the islands of Maui, Lanai, Molokai, and Kahoʻolawe. The duration of the flood watch will be determined by the evolving weather patterns and the proximity and strength of any developing tropical system.
Local authorities are monitoring the situation closely and will provide further updates as more information becomes available. Residents are encouraged to follow guidance from the National Weather Service and local emergency management agencies to ensure their safety.
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