Flash flooding caused by excessive rainfall is possible.
WHERE
all Hawaiian Islands.
WHEN
Through Friday 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
- Low pressure northwest of the islands will draw deep tropical moisture northward across the state, bringing the potential for heavy rain and thunderstorms capable of producing flash flooding.
Recommendations
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Thu 3:46 PM → Fri 6:00 AM HST
WHAT
Large disorganized surf quickly rising tonight with wave heights peaking at up to 8 to 12 feet.
WHERE
South facing shores of Niihau, Kauai, and Oahu.
WHEN
Until 6 AM HST Friday.
IMPACTS
Moderate. Strong breaking waves and strong currents will make swimming dangerous.
Recommendations
Heed all advice from ocean safety officials. When in doubt, don't go out.
