20°50'N / 156°20'W / Altitude 463 m / 20:52 2026/03/18, Pacific/Honolulu (UTC-10)
From: 2026/03/19, 18:00
To: 2026/03/22, 18:00
...FLOOD WATCH FOR OAHU, MOLOKAI, MAUI, AND THE BIG ISLAND FROM 6PM HST THURSDAY TO 6PM HST SUNDAY...
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...The islandS of Oahu, Maui, Molokai, and the Big Island.
* WHEN...From Thursday evening through Sunday afternoon.
* IMPACTS...Flood prone roads and other low lying areas may be closed due to elevated runoff and overflowing streams. Urban areas may receive more significant flooding and property damage due to rapid runoff.
* 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 are anticipated. The heaviest rain is expected Friday night through Saturday.
South Maui/Upcountry
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
NWS Honolulu HI
2026/03/18, 14:59