Wednesday, September 22, 2021

Smoke from nearby wildfires helps crew on biggest US blaze

Hundreds of wildfires that spread through woods and shrublands in the western United States have caused so much smoke that it helped an army of firefighters gain ground on the nation’s biggest fire, the Bootleg Fire of Oregon, officials said Saturday. is doing, officials said on Saturday.

National Weather Service and Oregon Department of Forestry officials said smoke in the lower atmosphere coming from California wildfires floated over the bootleg fire, which hit 401,000 about 402 kilometers (250 miles) south of Portland in Oregon. More than an acre has been scorched.

“It’s called ‘smoke shading,’ and it basically puts a lid on the lower atmosphere for now, blocking out sunlight and making it cooler, longer,” said Eric Schöning, a meteorologist with the National Weather Service in Salt Lake City. Produces more stable surface conditions.”

The phenomenon is unpredictable, and the area is still subject to a red-flag warning later this week from the Weather Service, which said the Pacific Northwest could experience higher temperatures and wind gusts that could fuel the flames. Can give and spread hot sparks and embers.

more difficulty for aircraft

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Schoing said the weather is a mixed bag in terms of helping firefighters.

Marcus Kaufman, a spokesman for the Oregon Department of Forestry, said the drawback of the smoke shadow is that it makes it difficult to fly planes and helicopters that release water and chemical fire extinguishers, even “while it Helps teams on the ground.”

He said over 2,000 firefighters and aid workers had brought under control about 42% of the fire by Saturday, although the fire had crossed the Line of Control the night before.

“We lost 1,600 acres last night,” Kaufman said.

According to the National Interagency Fire Center in Boise, Idaho, the bootleg fire is one of more than 80 large active wildfires in 13 states that have burned about 526,090 hectares (1.3 million acres) in recent weeks, from Delaware. Large area.

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The smoke, even though it provides some help to Oregon firefighters, has recently been carried by the jet stream and other air currents to the northeastern cities of New York and Boston, where some residents have felt the air pollution in their eyes, nose and lungs.

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Smoke from nearby wildfires helps crew on biggest US blaze
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