Hawaii Severe Flood Watch | Effective 09/07/2026 18:23

Headline: 
Flood Watch issued September 7 at 3:23PM HST until September 8 at 6:00PM HST by NWS Honolulu HI
Event: 
Flood Watch
Urgency: 
Future
Effective: 
September 7, 2026 - 6:23pm
Expires: 
September 8, 2026 - 8:30am
Description: 
Moisture along the eastern flank of Hurricane Lowell will bring periods of heavy rain to the main Hawaiian Islands through Tuesday. * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Kauai and Niihau. * WHEN...Through Tuesday 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... - As the center of Hurricane Lowell passes west of the islands, deep moisture associated with its inner rainbands will spread across Kauai and Niihau where significant rainfall has already fallen. These additional periods of heavy rain can quickly lead to additional flash flooding. - Kauai and Niihau.
Instruction: 
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Area Description: 
Niihau; Kauai Southwest; Kauai Mountains; Kauai North; Kauai East; Kauai South
Forcast Office: 
NWS Honolulu HI
Sender: 
w-nws.webmaster@noaa.gov