Flood Watch for every island through Wednesday night
Heavy rain and thunderstorms could bring flash flooding. Oʻahu and Maui County face the biggest threat.
A trough moving across the state from the west is pulling in deep tropical moisture. The National Weather Service has every main Hawaiian Island under a Flood Watch until 5 AM Thursday.
What to expect
- Heavy showers and isolated thunderstorms can pop up at any time through Wednesday night.
- The biggest flood threat is over Oʻahu and Maui County, but every island is at risk.
- Streams and drainages can overflow. Roads may close, low-lying and urban spots can flood from runoff, and steep areas could see landslides.
Up mauka on the Big Island, a separate High Wind Warning runs for the summit until noon Wednesday.
What you can do
- Check the forecast before you head out, and again before you drive home.
- Never drive or walk through moving water. Turn around.
- Clear your gutters and drains today if you can.
- If a Flash Flood Warning is issued for your area, move to higher ground right away.
Check on your kūpuna and neighbors who live near streams.