Headline:
Flood Watch issued August 15 at 3:55AM HST until August 16 at 6:00AM HST by NWS Honolulu HI
Event:
Flood Watch
Urgency:
Future
Effective:
August 15, 2026 - 6:55am
Expires:
August 15, 2026 - 9:00pm
Description:
Tropical Cyclone Lala will bring heavy rain to the Big Island and
Maui County through late tonight and Oahu, Kauai, and Niihau this
evening through late Sunday night.
* WHAT...Flash flooding caused by excessive rainfall will be
possible.
* WHERE...The Big Island and Maui.
* 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...
- Tropical Cyclone Lala will bring heavy rain to the Big Island and
Maui through late tonight. At this time, amounts of 10 to 20
inches are possible over windward areas of Big Island, with 8 to
12 inches over windward areas of Maui. Higher localized amounts
are possible.
Instruction:
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
Area Description:
Maui Windward West; Maui Leeward West; Haleakala Summit; Kona; Kohala; Big Island Interior; Big Island Summit; 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