What wildfire smoke will look like in the SF Bay Area over the weekend


Just another day.

San Francisco Bay Area residents must see another day of wildfire fire on Friday with pure air on the road Saturday as a sea breeze kicks off.

North winds pushed when soot from several fires burned in the north of the Bay area on Tuesday night, and at first the smoke mostly remained high above the atmosphere. While the sky had a strange glow, the air quality on the ground was generally good.

On Thursday, smoke began to settle closer to the surface and air quality deteriorated to levels considered “unhealthy for sensitive groups” on the air quality index in most of the Bay Area. Pockets of the “unhealthy” type when held at higher altitudes.

The Bay Area Bay Quality Management District upgraded the air quality advisory to a more severe Air alert on Thursday. Similar conditions are expected Friday and the alert remains in effect.

“These fires produced a huge puff of smoke that covered almost the entire state of California and hundreds of thousands of seas,” the district said.

A woman fixed a boat in foggy conditions and poor air quality in Oakland, California, on August 18, 2021. Smoke from fires in many fires in Northern California is forecast to affect air quality for the rest of the week.

A woman fixed a boat in foggy conditions and poor air quality in Oakland, California, on August 18, 2021. Smoke from fires in many fires in Northern California is forecast to affect air quality for the rest of the week.

Douglas Zimmerman / SFGATE

The AQI operates on a scale of 0 to 500. The higher the AQI value, the greater the level of air pollution and the greater the health concern. An AQI value of 50 or below represents air quality, while an AQI value of over 300 signals hazardous conditions.

Air quality website Purple Air showed locations across North Bay, East Bay and South Bay were in “unhealthy for sensitive groups” range Friday morning at 7 am The San Francisco Peninsula was at the high end of the “moderate” range.

Smoky and foggy conditions will gradually improve over the weekend as flows on land – winds blowing from inland seas – increase overhead, the National Weather Service said in its Friday morning forecast.


Meteorological service meteorologist Cindy Palmer explained a depression of low pressure down from British Columbia to the Pacific Northwest will not move to Northern California, but it will influence the region by triggering a change in the wind pattern on Saturday.

“It will help change the flow enough that we go on land against the north,” said Palmer, referring to the northern winds that pushed smoke from northern California south into the Bay Area. “It’s going to have an influence but we’re not getting any rain in this system.”

The weather service forecast noted that they provide the widespread protection from high smoke in and out on the Pacific “expected improvement
to be gradual. “

Fire fires are burning throughout Northern California amid hot, dry bones.

Fire fires are burning throughout Northern California amid hot, dry bones.

Photo Illustration: SFGATE / Getty Images

Several large wildfires are burning throughout Northern California, and weather forecasting service Brooke Bingaman said most of the smoke flooding the Bay Area is likely from flames in the northwest corner of the state, including Fire McFarland, Fire Monument and River Complex.

“Even some of the smoke from the Dixie Fire is floating south, and it’s floating in the East Bay,” Bingaman said. “It’s hard to identify exactly where the smoke is because there’s a lot of smoke.”

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