Boats navigate their way across Possession Sound through a visible haze on Wednesday, July 5, 2023 in Everett, Washington. (Olivia Vanni / The Herald)

Boats navigate their way across Possession Sound through a visible haze on Wednesday, July 5, 2023 in Everett, Washington. (Olivia Vanni / The Herald)

Haze covers parts of Snohomish County after Fourth of July fireworks

Air quality was at ‘unhealthy’ levels Wednesday because of firework activities and local fires.

EVERETT — Air quality levels in parts of Snohomish County were at unhealthy levels Wednesday as the region bore the brunt of leftover firework smoke from the Fourth of July.

The haze in the air was also a result of a “handful” of local fires, according to the National Weather Service in Seattle.

In the morning, some cities in the county exceeded 150 on the Air Quality Index.

By noon, both Everett and Marysville were at an air quality level that was “unhealthy for sensitive groups,” with an Air Quality Index dropping slightly to 130.

Conditions before the fireworks were already muggy due to smoke from wildfires in British Columbia, but wasn’t the main cause, the weather service noted.

Visibility and air quality were expected to gradually improve Wednesday as some of the “near surface” smoke began to mix upwards, according to meteorologists. Air quality is lower in areas of Washington where there are active fires, such as Tacoma and Shelton.

The smoke is expected to last until Thursday before beginning to clear out thanks to air flow from the Pacific clearing the smoke out and spreading it east, meteorologist Dustin Guy said. The process will be gradual and take a few days to fully dissipate.

Heading into the weekend, temperatures are expected to be “above normal,” with highs in Everett in the low 80s, according to the weather service. By early next week, meteorologists expect temperatures to cool down, reaching highs in the mid 70s by Tuesday. The onshore winds from the Pacific will also increase humidity levels.

Snohomish County has two dozen cooling centers, including air-conditioned libraries, outdoor water parks and senior centers.

Wildfire smoke can impact your health in a number of ways. Symptoms include: a burning sensation in the eyes, a sore throat, runny nose, headaches, wheezing, coughing, and shortness of breath, according to the state Poison Center.

The state Department of Health recommends a number of ways to protect yourself and alleviate any symptoms:

• Stay indoors

• Improving filtration in your house by using a portable air cleaner

• Use masks when appropriate

• Use artificial eye drops and stay hydrated

• Reduce physical activity

• Have a plan to evacuate

Jonathan Tall: 425-339-3486; jonathan.tall@heraldnet.com; Twitter: @EDHJonTall.

Talk to us

> Give us your news tips.

> Send us a letter to the editor.

> More Herald contact information.

More in Local News

Vernon Streeter looks over the fence at the Skykomish Substation operated by Puget Sound Energy on Monday, Nov. 4, 2024 in Skykomish, Washington. (Olivia Vanni / The Herald)
‘Doesn’t make any sense’: Skykomish residents decry increased outages

Community members are frustrated about power outages and a lack of communication from Puget Sound Energy.

Glacier Peak, elevation 10,541 feet, in the Glacier Peak Wilderness of Mount Baker–Snoqualmie National Forest in Snohomish County, Washington. (Caleb Hutton / The Herald) 2019
2 years later, Glacier Peak seismometers delayed again

The U.S. Forest Service planned to install them in 2023. Now, officials are eyeing 2026.

Washington Attorney General Bob Ferguson speaks at the Snohomish & Island County Labor Council champions dinner on Tuesday, Oct. 10, 2023 in Everett, Washington. (Olivia Vanni / The Herald)
Ferguson, WA Democrats prepare for new era of showdowns with Trump

Gov.-elect Bob Ferguson and Attorney General-elect Nick Brown are readying their legal teams.

Benson Boone (Photo provided by AEG Presents)
Monroe’s Benson Boone snags Grammy nomination for Best New Artist

The Monroe High grad this year has opened for Taylor Swift and won an MTV Video Music Award.

Lynnwood
Lynnwood caregiver accused of $674K check fraud

Prosecutors allege Sheila Saluquen defrauded the elderly owner of a car dealership for over a year.

Deborah Rumbaugh
‘Very hostile work environment’: Stanwood-Camano school supe resigns

Superintendent Deborah Rumbaugh said Tuesday she’ll be gone at the end of the school year.

Lynnwood
Woman killed after tree falls on Lynnwood encampment

The large tree came down as winds connected to a bomb cyclone ramped up in Snohomish County.

A broken downtown Everett banner blows during a gust on Tuesday, Nov 19, 2024 in Everett, Washington. (Will Geschke / The Herald)
Live updates: Snohomish, Marysville schools to start late

The bomb cyclone arrived as promised late Tuesday. Check back… Continue reading

Logo for news use featuring the municipality of Lake Stevens in Snohomish County, Washington. 220118
Everett man identified after fatal crash into pole in Lake Stevens

Authorities identified the deceased in the Nov. 13 crash as Earnest Ashley Jr. He was 44.

Lynnwood
2 dead in crash involving stolen minivan in Lynnwood

The driver of a stolen minivan and a woman driving an SUV died in a head-on crash Tuesday morning on 44th Avenue W, police said.

Drivers navigate around a downed tree across Mukilteo Boulevard while crews work to clear the road on Thursday, Dec. 7, 2023 in Everett, Washington. (Olivia Vanni / The Herald)
Bomb cyclone still on track to bring high winds to Snohomish County

That means 30 mph easterly winds with gusts as high as 50 mph or more starting as early as Tuesday afternoon.

FILE -- An engine on a Boeing 767 jet aircraft, at a Boeing facility in Everett, Wash., March 7, 2012. The Boeing 737 engine that failed on Southwest Flight 1380 is not the only one that has caught the eye of regulators: Engines on Boeing's 787 Dreamliner and 767 have also failed, prompting questions about their design and inspection procedures. (Stuart Isett/The New York Times)
Boeing layoffs will include nearly 2,200 workers in Washington

A Boeing spokesperson declined to say how many workers in each facility the company was laying off.

Support local journalism

If you value local news, make a gift now to support the trusted journalism you get in The Daily Herald. Donations processed in this system are not tax deductible.