Active Weather Alerts
Flood Advisory
Issued: 7:53 AM Mar. 11, 2026 – National Weather Service
...FLOOD ADVISORY NOW IN EFFECT UNTIL 115 AM HST WEDNESDAY FOR THE ISLAND OF KAUAI... * WHAT...Flooding caused by excessive rainfall continues. * WHERE...The island of Kauai. * WHEN...Until 115 AM HST. * IMPACTS...Minor flooding on roads, poor drainage areas, and in streams. Water over roadways. River or stream flows are elevated. * ADDITIONAL DETAILS... - At 950 PM HST, radar indicated a band of heavy rain between Hanapepe and Princeville. Rain was falling at a rate of 0.5 to 1.5 inches per hour. Stream levels are elevated and continue to rise across the island. - Some locations that will experience flooding include...the entire island of Kauai. PRECAUTIONARY/PREPAREDNESS ACTIONS... Stay away from streams, drainage ditches and low lying areas prone to flooding. Rainfall and runoff will also cause hazardous driving conditions due to ponding, reduced visibility and poor braking action. A Flood Watch is also in effect for Kauai County through Saturday afternoon. && This advisory may need to be extended beyond 115 AM HST if flooding; persists.
Flood Watch
Issued: 2:59 AM Mar. 11, 2026 – National Weather Service
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Niihau and Kauai. * WHEN...Through Saturday afternoon. * IMPACTS...Significant flooding may occur due to the overflow of streams and drainages. Roads in several areas may be closed, along with property damage in urban or low lying spots due to runoff. Landslides may also occur in areas with steep terrain. * ADDITIONAL DETAILS... - Considerable flash flooding remains possible this evening as a large and powerful kona storm develops northwest of the state and draws deep tropical moisture across the islands. Persistent bands of heavy rain and thunderstorms may produce intense rainfall rates, leading to rapid rises in streams and flooding of roads and low-lying areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. &&
Special Weather Statement
Issued: 2:53 AM Mar. 11, 2026 – National Weather Service
...POWERFUL KONA STORM TO IMPACT THE STATE THIS WEEK... A powerful kona storm will impact the western end of the state tonight, then spread across the remainder of the smaller islands by midweek and the Big Island towards the end of the week. While flash flooding remains a major concern (see the Flood Watch for additional details), confidence is increasing that strong to severe thunderstorms may develop Wednesday into the weekend. Damaging winds will likely be the primary hazard with these storms, though large hail cannot be ruled out. In addition to the heavy rainfall and severe thunderstorm threat, strong and potentially damaging kona winds are possible late in the week and into the weekend.
Small Craft Advisory
Issued: 1:27 AM Mar. 11, 2026 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST WEDNESDAY... * WHAT...South winds 15 to 25 kt. * WHERE...Kauai Northwest Waters, Kauai Windward Waters and Kauai Leeward Waters. * WHEN...Until 6 PM HST Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. &&
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