MYNORTHWEST WEATHER

Thunderstorms knock out power across western Washington

Jul 16, 2026, 12:06 PM | Updated: 5:17 pm

thunderstorm (1)...

Lightning flashes are seen above homes. (Photo: Dan Kitwood, Getty Images)

(Photo: Dan Kitwood, Getty Images)

A thunderstorm triggered thousands of power outages across western Washington.

Seattle City Light is reporting 21 unplanned outages, affecting around 165 customers, all the way from near Shoreline to Skyway, as of 5 p.m. Thursday.

Many of the exact causes of the power outages in Seattle are still under investigation, with restoration times ranging from 6 p.m. to 8 p.m.

Puget Sound Energy is seeing 1,899 customers without power due to unplanned outages, from Whidbey Island all the way to Tenino. The majority of the outages are in the Tumwater area.

Tacoma was also seeing some thunderstorm activity, but the power has been mostly fixed, with only one unplanned outage and five customers affected.

Up in Snohomish County, only eight customers are without power, down from the earlier 1,803 affected.

Thunderstorm causes ground stop at SEA

The storm is also affecting travel, with a ground delay at the Seattle-Tacoma International Airport (SEA) in place. The delay replaced an earlier ground stop.

The ground stop impacted departures heading toward Seattle from three regional air traffic control zones in the U.S., as well as Canada, including:

  • Salt Lake Center, UT (SLC)
  • Oakland Center, CA (ZOA)
  • Seattle Center, WA (ZSE)
  • Edmonton, Canada (CYEG)
  • Vancouver, Canada (CYVR)
  • Calgary, Canada (CYYC)
  • Victoria, Canada (CYYJ)
  • Kelowna, Canada (CYLW)

The ground delay is expected to be lifted around 10:59 p.m.

This is a developing story, check back for updates.

Contributing: Jason Sutich, MyNorthwest

Follow Julia Dallas on X. Read her stories here. Submit news tips here.

MyNorthwest Weather

jay inslee wildfire climate change...

Jake Skorheim and Spike O'Neill Show

Jake, Spike debate over former WA Gov. Jay Inslee linking wildfire surge to climate change

Former Governor Jay Inslee, who has long linked the surge in wildfires and smoke in the Pacific Northwest to climate change, posted on X to further highlight the correlation.

19 hours ago

wildfire smoke western washington...

Linzi Sheldon, KIRO 7 News

Wildfire smoke expected to bring hazy skies to Western Washington

Western Washington residents can expect hazy skies and the smell of wildfire smoke over the next several days as smoke from fires burning in Oregon and Canada drifts into the region.

22 hours ago

heat wave western washington tuesday wednesday...

Ted Buehner

Heat wave coming to Western Washington Tuesday and Wednesday

July is usually the warmest month of the year, and the weather during the first half of this week is going to reflect that heat.

22 hours ago

daylight saving time curley...

John Curley Show

‘I tried to just not recognize it’: Curley shares his hatred for Daylight Saving Time, switching times twice a year

Earlier this week, the House of Representatives passed a bill that would make Daylight Saving Time permanent.

5 days ago

summer...

Ted Buehner

Warmer-than-average summer ahead for western WA as forecast sounds like a broken record

The National Weather Service released the latest seasonal weather outlook, and the outlook for the summer may sound like a broken record.

5 days ago

WA lightning wildfire thunder...

Jason Sutich

8,000+ lightning strikes ignite wildfire concerns across Washington and Oregon

More than 8,000 lightning strikes ripped through Washington and Oregon over the last 24 hours, causing a large number of fires to ignite in each state.

5 days ago

Thunderstorms knock out power across western Washington