Headline:
Flood Watch issued April 12 at 3:14AM HST until April 13 at 6:00PM HST by NWS Honolulu HI
Event:
Flood Watch
Urgency:
Future
Effective:
April 12, 2026 - 6:14am
Expires:
April 12, 2026 - 9:15pm
Description:
...FLOOD WATCH IN EFFECT FOR ALL HAWAIIAN ISLANDS THROUGH 6 PM HST
MONDAY...
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...The island of Kauai in Kauai County, The island of Niihau
in Kauai County, Oahu, Maui, Molokai, Lanai, Kahoolawe, and the
Big Island.
* WHEN...Through Monday afternoon.
* IMPACTS...Significant flooding may occur due to excessive rainfall
and 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 draw deep tropical
moisture northward bringing a high likelihood of heavy
rainfall capable of causing flash flooding, especially given
saturated antecedent conditions due to recent rainfall. The
heaviest rain is expected over Molokai, Oahu, and Kauai.
Instruction:
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
Area Description:
Niihau; Kauai Southwest; Kauai Mountains; 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; Kauai North; Kauai East; Kauai South; 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