Active Weather Alerts
Flood Advisory
Issued: 1:44 PM Apr. 11, 2026 – National Weather Service
...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 5 AM HST EARLY THIS MORNING FOR THE BIG ISLAND OF HAWAII...... * WHAT...Flooding caused by excessive rainfall continues. * WHERE...The entire Big Island of Hawaii. * WHEN...Until 500 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 340 AM HST, radar and automated rain gauges indicated heavy rain over over the Big Island. Rain was falling at a rate of 0.5 to 1.0 inches per hour. - Some locations that will experience flooding include... the entire Big Island. PRECAUTIONARY/PREPAREDNESS ACTIONS... Stay away from streams, drainage ditches and low lying areas prone to flooding. A Flood Watch is also in effect for the Big Island of Hawaii through Monday afternoon. && This advisory may need to be extended beyond 500 AM HST if flooding; persists.
Flood Watch
Issued: 1:07 PM Apr. 11, 2026 – National Weather Service
* WHAT...Flash flooding caused by excessive rainfall remains possible. * WHERE...Oahu, Maui, Molokai, Lanai, Kahoolawe, and the Big Island. * WHEN...For the Big Island, through Monday afternoon. Elsewhere, from late tonight through Monday 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... - A disturbance approaching from the northwest is expected to renew deep tropical moisture across all Hawaiian Islands beginning late tonight. Given saturated soils and elevated stream levels following recent heavy rainfall, flooding may redevelop quickly. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. &&
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