Headline:
Flood Watch issued August 21 at 3:29AM HST until August 24 at 6:00PM HST by NWS Honolulu HI
Event:
Flood Watch
Urgency:
Future
Effective:
August 21, 2026 - 6:29am
Expires:
August 21, 2026 - 9:15pm
Description:
Tropical Depression Two-C will bring areas of heavy rain to portions
of the Big Island late Saturday through Monday afternoon.
* WHAT...Flash flooding caused by excessive rainfall is possible for
windward and southeast Big Island.
* WHERE...The Big Island.
* WHEN...From late Saturday night through Monday 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...
- Tropical Depression Two-C is forecast to bring periods of heavy
rain to the Big Island from late Saturday night through Monday
afternoon. Rainfall totals of 5 to 10 inches, locally up to 15
inches, are possible on windward and southeast Big Island. It
will not take a significant amount of rain to cause flash
flooding due to saturated grounds from recent heavy rains.
Instruction:
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
Area Description:
Kona; Kohala; Big Island Interior; Big Island Summit; Big Island South; Big Island Southeast; Big Island East; Big Island North
Forcast Office:
NWS Honolulu HI
Sender:
w-nws.webmaster@noaa.gov