Heavy smoke causes Yosemite Mountain Sugar Pine Railroad to temporarily close

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The Yosemite Mountain Sugar Pine Railroad is temporarily closed until further notice due to heavy smoke in the area. The Washburn fire that is currently burning in Yosemite has caused the railroads’ air quality sensor to read very high levels.

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Wildfire activity inside the Washburn Fire burning in Yosemite National Park is reportedly so intense it's lifting tree debris hundreds of feet into the air, causing at least one near-miss for firefighting aircraft.

Radio traffic from a plane over the blaze Saturday documented the rare phenonemon: "Hey, just want to let you know, a branch went over the top of us," a pilot radioed into dispatch. "A pretty good size, probably 50 feet above us coming down and fell right between tanker 103 and myself."

"OK, copy. So like a repeat of yesterday," the dispatcher reponded.

"That's exactly what I'm getting that," the pilot said. "So if we keep seeing that, we might have to knock it off. I don't want to take a chance of busting a window on an airplane or hurting an aircraft for this."