Threatens 3,000-year-old giant sequoia trees in Yosemite National Park
Continue readingFBI using system to detect drones over wildfires, and the pilots

This article was first published at Fire Aviation.
The Federal Bureau of Investigation is using a new system to help wildland firefighters by detecting, identifying, and neutralizing drones that are illegally interfering with firefighting activities.
It is very dangerous to fly a drone near a fire at which helicopters or fixed wing aircraft are operating. A collision could impact the windscreen or damage the engine, props, rotors, or flight control surfaces, causing a crash. If a drone is seen near a fire the standard operating procedure is to remove all aircraft from the fire area until it is confirmed that the drone has left the scene. In other words, it interferes with firefighting efforts.
The FBI is working with the Los Angeles County Fire Department to use a system that can detect a drone flying over a fire within 30 seconds of it being launched.
From CNN:
“When the detection equipment finds the drone and identifies the operator’s location, we can very rapidly get that information to a ground intercept team who can then go make contact with that drone operator and essentially get them to stop flying that drone,” said James Peaco III, the weapons of mass destruction coordinator for the FBI’s Los Angeles field office.
With a special sensor, the team can set up a boundary as large or as small as desired and get notified if a drone flies into that area, instantly obtaining precise details such as elevation, direction, speed as well as where the drone took off from and where the controller is currently standing.
“The first thing we do is order them to bring the drone back, explain to him that there’s a wildfire and flying that drone during a wildland fire is actually a federal felony,” Peaco said.
It’s a federal crime punishable by up to 12 months in prison to interfere with firefighting efforts on public lands. Additionally, Congress has authorized the FAA to impose a civil penalty of up to $20,000 against any drone pilot who interferes with wildfire suppression, law enforcement, or emergency response operations. The FAA treats these violations seriously, and will immediately consider swift enforcement action for these offenses.
According to the US Forest Service, in 2019 at least 20 documented instances of unauthorized drone flights over or near wildfires in seven states (Arizona, California, Colorado, Nevada, New Mexico, Utah, Washington and Minnesota) resulted in aerial firefighting operations being temporarily shut down nine times. There is no centralized national mechanism to report unauthorized UAS flights over wildfires, so these are only the incidents that wildfire management agencies have become aware of, there are likely more that are not known about.
Suspending air operations could decrease the effectiveness of wildfire suppression operations, allowing wildfires to grow larger, and in some cases, unduly threaten lives, property, and valuable natural and cultural resources. The effects of lost aircraft time could be compounded by flames moving into untreated terrain.
Thanks and a tip of the hat go out to Tom and Gerald.
FBI assisting locals to detect drones over wildfires

The Federal Bureau of Investigation is using a new system to help wildland firefighters by detecting, identifying, and neutralizing drones that are illegally interfering with firefighting activities.
It is very dangerous to fly a drone near a fire at which helicopters or fixed wing aircraft are operating. A collision could impact the windscreen or damage the engine, props, rotors, or flight control surfaces, causing a crash. If a drone is seen near a fire the standard operating procedure is to remove all aircraft from the fire area until it is confirmed that the drone has left the scene. In other words, it interferes with firefighting efforts.
The FBI is working with the Los Angeles County Fire Department to use a system that can detect a drone flying over a fire within 30 seconds of it being launched.
From CNN:
“When the detection equipment finds the drone and identifies the operator’s location, we can very rapidly get that information to a ground intercept team who can then go make contact with that drone operator and essentially get them to stop flying that drone,” said James Peaco III, the weapons of mass destruction coordinator for the FBI’s Los Angeles field office.
With a special sensor, the team can set up a boundary as large or as small as desired and get notified if a drone flies into that area, instantly obtaining precise details such as elevation, direction, speed as well as where the drone took off from and where the controller is currently standing.
“The first thing we do is order them to bring the drone back, explain to him that there’s a wildfire and flying that drone during a wildland fire is actually a federal felony,” Peaco said.
It’s a federal crime punishable by up to 12 months in prison to interfere with firefighting efforts on public lands. Additionally, Congress has authorized the FAA to impose a civil penalty of up to $20,000 against any drone pilot who interferes with wildfire suppression, law enforcement, or emergency response operations. The FAA treats these violations seriously, and will immediately consider swift enforcement action for these offenses.
According to the US Forest Service, in 2019 at least 20 documented instances of unauthorized drone flights over or near wildfires in seven states (Arizona, California, Colorado, Nevada, New Mexico, Utah, Washington and Minnesota) resulted in aerial firefighting operations being temporarily shut down nine times. There is no centralized national mechanism to report unauthorized UAS flights over wildfires, so these are only the incidents that wildfire management agencies have become aware of, there are likely more that are not known about.
Suspending air operations could decrease the effectiveness of wildfire suppression operations, allowing wildfires to grow larger, and in some cases, unduly threaten lives, property, and valuable natural and cultural resources. The effects of lost aircraft time could be compounded by flames moving into untreated terrain.
Thanks and a tip of the hat go out to Tom and Gerald.
Jacob City and Halfway Hill fires burn thousands of acres in Utah
11:04 a.m. MDT July 11, 2022

Two wildfires in Utah are burning in steep, rugged terrain.
The Halfway Hill Fire is in the Fishlake National Forest two miles southeast of Fillmore east of Interstate 15. The activity on the fire Sunday was more moderate than the previous two days as the wind speeds lessened. It was mapped Sunday night at 10,417 acres. Most of the heat detected by the sensors on the aircraft was on the eastern side.

Residents of the Virginia Hills subdivision are still under an evacuation notice.

The Jacob City Fire has burned 4,094 acres 2 miles east of Stockton. When it was mapped at 10 p.m. Sunday it was very active on the northwest and southeast sides. As of Sunday evening no communities are imminently threatened, according to Utah Fire Info.



Smoke forecast for July 11, 2022
For 10 a.m. PDT July 11, 2022
Continue readingLead plane and air tanker avoid falling tree branch

This article was first published at Fire Aviation
Yesterday July 9 a lead plane and a large air tanker had a close call while on a retardant dropping sortie on the Washburn Fire in Yosemite National Park.
There was virtually no wind over the fire most of the day and the area was smoked in causing very poor visibility making it impossible for air tankers to drop on the fire. But by 6 p.m. conditions had improved and at about 6:10 p.m. a lead plane was leading Tanker 103, an MD-87, over a target when they saw a falling tree branch above the lead plane. It fell between the two aircraft, in front of the tanker.
Twitter user Robert, @Rob_on_sisukas, captured an audio recording of the radio conversation. We’re not sure who the lead plane pilot was talking to, but we’ll call it “dispatcher” for now:
LEAD PLANE: Hey I just want to let you know that a branch went right over the top of us, pretty good size, probably 50 feet above us coming down and fell right in between Tanker 103 and myself.
DISPATCHER: OK. Copy. So it’s repeat of yesterday’s (unintelligible)
LEAD PLANE: That’s exactly what I’m getting at. So if we keep seeing that we might have to knock it off. I don’t want to take a chance on busting a window in an airplane or hurting an aircraft for this.
DISPATCHER: Absolutely. Keep me updated on this.
#WashburnFire interesting little chat. Near miss with a tree branch and Air Attack and Tanker 103. As civilians, we just see planes dropping loads. But listen to this choreography that goes on behind the scenes of fire. pic.twitter.com/Dn2CcTZ7qV
— Robert (@Rob_on_sisukas) July 10, 2022
When a fire is burning intensely in an unstable atmosphere the convection in the rising smoke column can be powered by a tremendous amount of energy. As air at ground level rushes in to take the place of the rising column, the developing horizontal wind and the fresh oxygen feed the fire, causing an even higher level of intensity. The horizontal and then vertical movement of air can sometimes transport unexpectedly large objects up into the sky. Large columns may rotate as they rise and in extreme cases can actually become a fire tornado. You don’t want to be nearby when that happens. Fire tornados are not to be confused with small dust devils or fire whirls.
What is surprising about the incident yesterday is that the fire was smoked in most of the day, and tankers could not fly until about 6 p.m. I looked at various AlertWildfire cameras a few times and did not see any smoke columns. Maybe the cameras I saw were not able to see all of the fire, but I remember that late in the afternoon fire activity increased at the Sierra Fire Watch camera below, and columns may have developed.

Firefighting aircraft being damaged by debris being lofted into the air over a fire is not unheard of. Here’s part of an article I wrote for Wildfire Today in 2018:
During the large vegetation fires in southern California in 2003 some of the convection columns were so powerful that the windshields on six air tankers were cracked by chunks of debris that were being hurled into the air (page D-6 in 2003 California Governor’s Blue Ribbon Report; huge 20 Mb file). One pilot saw a four by eight sheet of plywood sail past at 1,500 feet.
As of late morning today, July 10, the Washburn Fire has burned about 1,800 acres in Yosemite National Park. About 300 of those acres are in the Mariposa Grove of giant sequoia trees, some of them 3,000 years old.
Thanks and a tip of the hat go out to Kelly.
Air tanker has close call with a falling tree branch
At Yosemite National Park’s Washburn Fire
Continue readingWashburn Fire grows in Yosemite National Park
It has burned into a grove of giant sequoia trees, some of which are 3,000 years old
Continue readingCAL FIRE to add more firefighters, engines, dozers, and helicopters
Will add 1,503 personnel, 27 engines, 4 helicopters, and 10 dozers
Continue readingFirefighters battling two fires in central Utah
Halfway Hill Fire and Dry Creek Fire were reported about the same time on Friday, July 8
Continue reading