NWS Warns Developing Kona Storm Could Impact Kauai Starting March 10

The National Weather Service in Honolulu issued warnings and forecast updates on March 8 for a developing Kona storm system that forecasters said could impact the western end of the state, including Kaua‘i, beginning Tuesday, March 10 and producing broader impacts by Wednesday, March 11. The bulletin from the Honolulu forecast office set a clear timeline for when the system could begin affecting islands in the state’s western chain.

Forecasters in Honolulu identified the disturbance specifically as a Kona storm system and cautioned that its reach could include Kaua‘i. The NWS forecast products released on March 8 did not limit the potential impact to a single day: initial conditions are expected to arrive March 10 on Kaua‘i, with the situation expanding across the western end of the state by March 11 as the system evolves.

Residents and agencies on Kaua‘i should treat the March 10 start date on the NWS timetable as the first window for potential weather impacts. Because the National Weather Service in Honolulu supplied both warnings and forecasts on March 8, the office will be the authoritative source for any watches, warnings, or advisories that could follow as conditions change between March 9 and March 11.

Travel and outdoor plans scheduled for March 10 and March 11 on Kaua‘i may be affected if the Kona storm strengthens as forecast by Honolulu. The NWS timeline beginning March 10 gives local planners, transit operators, and residents a two-day lead from the March 8 issuance to adjust operations and monitor later forecast updates from the Honolulu office.

Forecasts for Kona storm systems can change as new observations come in; the NWS warnings issued March 8 set the initial expectation that Kaua‘i could see impacts beginning March 10 and broader effects by March 11. Expect further updates from the National Weather Service in Honolulu that will refine timing and specific hazards for Kaua‘i as the storm approaches.