Hawaii Flood Watch | Effective 04/10/2026 17:54

Headline: 
Flood Watch issued April 10 at 2:54PM HST until April 11 at 6:00AM HST by NWS Honolulu HI
Event: 
Flood Watch
Urgency: 
Future
Effective: 
April 10, 2026 - 5:54pm
Expires: 
April 11, 2026 - 8:15am
Description: 
...FLOOD WATCH IN EFFECT FOR OAHU, MAUI COUNTY AND THE BIG ISLAND THROUGH 6 AM HST SATURDAY... * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Oahu, Maui, Molokai, Lanai, Kahoolawe, and the Big Island. * WHEN...Through late tonight. * 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... - Low pressure northwest of the islands will continue to draw deep tropical moisture northward across the state, bringing the potential for heavy rain capable of producing flash flooding. The focus will gradually shift eastward tonight into Saturday morning as the axis of moisture progresses down the island chain and drier air fills in behind.
Instruction: 
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Area Description: 
Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Lanai Mauka; Kahoolawe; Maui Windward West; Maui Leeward West; Haleakala Summit; Kona; Kohala; Big Island Interior; Big Island Summit; East Honolulu; Honolulu Metro; Ewa Plain; Koolau Windward; Koolau Leeward; Molokai Windward; Molokai Southeast; Molokai North; Molokai West; Molokai Leeward South; Lanai Windward; Lanai Leeward; Lanai South; Maui Central Valley North; Maui Central Valley South; Windward Haleakala; Kipahulu; South Maui/Upcountry; South Haleakala; Big Island South; Big Island Southeast; Big Island East; Big Island North
Forcast Office: 
NWS Honolulu HI
Sender: 
w-nws.webmaster@noaa.gov