Headline:
Flood Watch issued March 19 at 2:38AM HST until March 22 at 6:00PM HST by NWS Honolulu HI
Event:
Flood Watch
Urgency:
Future
Effective:
March 19, 2026 - 5:38am
Expires:
March 19, 2026 - 9:00pm
Description:
...FLOOD WATCH IN EFFECT FROM THIS EVENING THROUGH SUNDAY AFTERNOON
FOR OAHU MAUI COUNTY AND THE BIG ISLAND OF HAWAII...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...The island of Oahu, Maui County, and the Big Island of
Hawaii.
* WHEN...From this 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 pulses of moderate to heavy
rainfall are anticipated to develop across the state. The
heaviest rain is expected from Friday night through Saturday.
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; 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