Od: 20.03.2026, 03:39
Do: 20.03.2026, 18:00

...FLOOD WATCH IN EFFECT THROUGH SUNDAY AFTERNOON FOR ALL ISLANDS IN THE STATE OF HAWAII...

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...The island of Oahu, Molokai, Lanai, Kahoolawe, Maui, and the Big Island.

* WHEN...Through Sunday 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 kona low developing west of the islands will draw abundant moisture northward as it strengthens and eventually departs to north early next week. Several rounds of moderate to heavy rainfall and thunderstorms are expected. The heaviest rain is expected to last through Saturday, except for the Big Island where the heaviest rain is expected on Sunday.

Od: 20.03.2026, 08:00
Do: 20.03.2026, 11:00

* WHAT...Flooding caused by excessive rainfall.

* WHERE...The island of Oahu in Honolulu County.

* WHEN...Until 1100 AM HST.

* IMPACTS...Minor flooding on roads, poor drainage areas, and in streams. Ponding of water in urban or other areas is occurring or is imminent. Rapid rises in storm water channels and drainage ditches are possible as well.

* ADDITIONAL DETAILS... - At 757 AM HST, radar indicated heavy rain moving over the south and east portions of Oahu. Rain was falling at a rate of 1 to 2 inches per hour. Additional areas of heavy rain are expected to move over the area for the next few hours. - Some locations that will experience flooding include... Honolulu, Waipio, Moanalua, Halawa, Salt Lake, Aiea, Kalihi, Pearl City, Ahuimanu, Iroquois Point, Manoa, Kahaluu, Kaneohe, Waiahole, Waipahu, Waikele, Palolo, Maunawili, Waikane and Ewa Beach.