MYNORTHWEST WEATHER

Flash flood watch issued for Washington Cascades

Jul 31, 2025, 12:48 PM | Updated: 12:49 pm

Flash flood watch...

Flash flood watches have been issued for the Cascades. (Image courtesy of the National Weather Service)

(Image courtesy of the National Weather Service)

Heavy rain and thunderstorms are forecast over the mountains Thursday, prompting a flash flood watch in the Cascades.

Burn scars Bolt Creek, Goat Rocks, Sourdough, Easy, Chilliwack, and Suiattle-Boulder-Toketie could also see floods, according to the National Weather Service (NWS) in Seattle.

“Potentially see some rain rates up to an inch an hour, and so that may bring some risk of debris flow on any of the burn scars that we’ve seen on our fires from the last couple years,” Samantha Borth, meteorologist with the NWS in Seattle, explained.

That flash flood watch will run until 5 a.m. Friday.

No flash floods expected in foothills

No major impact is expected in the foothills, but they could still see some showers and thunderstorms.

“We might see some showers and thunderstorms move over the area, but we’re not expecting to have, like, any flash flooding right now for those areas,” Borth said.

Contributing: Aaron Granillo, KIRO Newsradio; Julia Dallas, MyNorthwest

MyNorthwest Weather

Daylight Saving Time (1)...

Julia Dallas

Gain sleep, lose sunlight: Clocks will fall back Sunday as 4 p.m. sunsets begin

Daylight Saving Time (DST) ends Sunday, November 2, and clocks will fall back one hour. Subsequently, 4 p.m. sunsets begin next week.

7 hours ago

Halloween forecast...

Heather Bosch

Scary forecast on tap for Halloween

This Halloween is expected to feature a frighteningly wet forecast for the Puget Sound region.

15 hours ago

atmospheric river washington halloween...

Frank Sumrall

Atmospheric river to hit western WA on Halloween

An atmospheric river is expected to bring heavy rain to western Washington, beginning Friday evening — the night of Halloween.

16 hours ago

Oregon earthquakes...

Julia Dallas

Two earthquakes strike off Oregon coast, one reaching 5.4 magnitude

Two earthquakes struck off the Oregon coast today. Learn more about their impact and how to stay prepared for future tremors.

2 days ago

hurricane melissa jamaica...

Associated Press

Hurricane Melissa hits Cuba after pummeling Jamaica with record wind speeds

Heavy floodwaters swept across southwestern Jamaica as Hurricane Melissa came ashore as a catastrophic Category 5 storm.

3 days ago

rain wednesday seattle halloween...

Chief Meteorologist Morgan Palmer, KIRO 7 News

Rain and wind to settle overnight into Wednesday morning

Rain will end Wednesday morning before daybreak, with the weather being more tranquil through Thursday as all eyes look toward the atmospheric river inbound just in time for Halloween.

3 days ago

Flash flood watch issued for Washington Cascades