Plane over intense Yosemite fire nearly hit by flying tree debris – SFGATE

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“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.”

Wildfires are capable of creating their own weather, sometimes referred to as a firestorm. As the fire burns hot and intense at the ground level, heat rises rapidly and creates a vacuum. Air rushes in to fill that vacuum, and the resulting updraft is powerful enough to carry debris, form a firenado and make its own lightning.

“This was just confirmed to me directly by an airborne eyewitness!” UCLA climate scientist Daniel Swain tweeted. “Large debris from sequoia trees (including at least one branch >2 ft long) have been lofted hundreds or more feet vertically by #WashburnFire in Yosemite.”

The Washburn Fire burns in Mariposa Grove in Yosemite National Park, Calif., on Friday, July 8, 2022.

The Washburn Fire burns in Mariposa Grove in Yosemite National Park, Calif., on Friday, July 8, 2022.Noah Berger/AP

As of Sunday morning, the Washburn Fire is at 1,591 acres with no containment. Evacuation orders remain in effect for Wawona, the Mariposa Grove and Wawona Campground, but most of Yosemite National Park is still open. Officials warned visitors to expect delays of up to two hours at entrances in other parts of the park, as the southern entrance is closed and road closures are in place. Visitors are likely to see “smoky conditions and poor air quality” as the fire spreads. 

The wildfire started on Thursday afternoon near the Washburn Trail in the southern end of the park. You can see the latest incident reports from Yosemite National Park here. A map being updated by the National Park Service shows where the Washburn Fire is burning within the borders of Yosemite: 

“The fire is burning in difficult terrain with continuous heavy fuels in and around the fire,” Yosemire Fire wrote in its latest incident report. “Significant tree mortality from 2013-2015 has left significant dead standing and dead fallen fuels. This also presents significant safety hazards to firefighters. Fire scars from past fires located approximately one to three miles from the current fire perimeter will assist firefighters in slowing the growth of the fire. Firefighters will continue going direct when safe and will scout and prepare indirect lines.”

Temperatures are high in the region this weekend, with a warming trend in the forecast; a high of 86 is expected today and 91 on Monday. 

According to the park service, the fire started around 2 p.m. Thursday near the Washburn Trail. One of the most popular visitor attractions in Yosemite National Park, Mariposa Grove has more than 500 mature giant sequoias. Giant sequoias are the largest trees in the world, and the grove holds trees that may be be thousands of years old. One of the best-known trees, the towering Grizzly Giant, is estimated to be 2,700 years old. Mariposa Grove was previously closed for three years, from 2015 to 2018, for a $40 million restoration project.

A firefighter protects a sequoia tree as the Washburn Fire burns in Mariposa Grove in Yosemite National Park, Calif., on Friday, July 8, 2022.

A firefighter protects a sequoia tree as the Washburn Fire burns in Mariposa Grove in Yosemite National Park, Calif., on Friday, July 8, 2022.Noah Berger/AP

In 1864, President Abraham Lincoln signed the Yosemite Valley Grant Act into law, protecting the land, including Mariposa Grove, for the public and future generations. The bill would inspire what would become the National Park System. 

The Red Cross announced at 5 p.m. on Saturday that it has closed the evacuation site at 5089 Cole Road in Mariposa, after “caring for 10 displaced residents and tourists.” The shelter is currently in standby status. About 700 people have evacuated from areas affected by the fire, the Fresno Bee reported. An evacuation map can be found here.

The cause of the fire is under investigation. You can check AlertWildfire’s live cameras to monitor the progress of the fire. 

This is a developing story and information will be added as it becomes available. 

Source Article from https://www.sfgate.com/california-wildfires/article/Yosemite-Washburn-fire-updates-17295425.php

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