User:Penitentes/Dixie Fire - Overhaul


 * https://www.flickr.com/photos/nifc/51434393898/in/photolist-2mn5HmN-2mn8idH-2mKicLU-2mwt46b-2mwogT6-2mwt3Hn-2mwogPD-2mwpx3E-2mwogYm-2mwohvZ-2mwpxrF-2mwpxXa-2mwrZ9E-2mwpxN7-2mwrYva-2mwjfzZ-2mwrZ6J-GyzBhC-2mn8mdF-i7LdQW-GAYkXv-2ehhMp5-RBRbaB-2mn8isA-2mmZCp7-2mn8iFb-2mn9tgN-2mn5Hjy-2mmZCg6-2mmZCmG-Ay84mQ-2mwrY6x-2mwt3Sq-2mn9txK-2k8oqba-GAYjH6-2mqejzF-wYVLZ7-JjpWzo-2mKj7FY-W2DBks-owhipV-ouv7BY-2ehhMyd-2dZm37t-2ehhMuf-2fiAhrJ-2ehhMGQ-RBRb3T-2dZkEuR


 * https://www.wtvm.com/2021/07/16/fire-chasing-beetles-are-attacking-fire-crews-amid-california-firefight/

The 2021 Dixie Fire was an enormous, devastating wildfire that became the single largest (non-complex) fire in California's recorded history, burning 963,309 acres—at more than 1,500 square miles, an area larger than the state of Rhode Island. After starting on July 13, 2021, the fire burned through large parts of Butte, Plumas, Lassen, Shasta, and Tehama counties in the northern Sierra Nevada over the course of nearly 3 months, before finally being declared 100% contained on October 25, 2021. The effort to stop the Dixie Fire was one of the largest and most expensive wildfire suppression efforts in United States history, costing more than $637 million and involving more than 6,500 firefighters simultaneously at the height of the firefight.

The Dixie Fire heavily damaged or destroyed multiple communities, including Warner Valley, Canyondam, ___, and most notably Greenville. It ultimately destroyed ___ structures, and damaged ____ more. While the Dixie Fire caused no civilian fatalities, one firefighter died from complications after contracting COVID-19 during the suppression effort.

The fire was caused by a tree falling on a PG&E power line in the Feather River Canyon, an incident which became the subject of a Cal Fire investigation that ultimately found PG&E responsible...

The Dixie Fire was the largest and most destructive wildfire of California's 2021 wildfire season, which was the state's second-largest wildfire season ever recorded. During it, the Dixie Fire became the first fire known to burn from one side of the Sierra Nevada to the other, igniting in the foothills in the Feather River Canyon near Concow on July 13 and reaching Highway 395 in mid-August. Just weeks later, the Caldor Fire repeated the feat when it burned from the Sierra foothills near Omo Ranch all the way to the Lake Tahoe basin, threatening but ultimately sparing the community of South Lake Tahoe. Other notable wildfires in California in 2021 included the small but destructive Fawn Fire and River Fire and the Beckwourth Complex fires, which the Dixie Fire ultimately burned all the way to on its southern end.

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The enormous and destructive 2021 Dixie Fire was the largest single wildfire in the history of the state of California. Ignited by a tree falling on a PG&E power line on July 13, 2021, the fire burned through large parts of Butte, Plumas, Lassen, Shasta, and Tehama counties over the course of nearly 3 months before finally being declared 100% contained on October 25, 2021.

The effort to stop the wildfire was one of the largest and most expensive such firefights in United States history. More than x FFs, y $$

It was named after Dixie Road, near where the fire started in Butte County. The fire began in the Feather River Canyon near Cresta Dam on July 13, 2021, and burned 963,309 acre before being 100% contained on October 25, 2021. It was the largest single (i.e. non-complex) wildfire in recorded California history, and the second-largest wildfire overall (after the August Complex fire of 2020). The fire damaged or destroyed several small towns or communities, including Greenville on August 4, Canyondam on August 5, and Warner Valley on August 12.

By July 23, it had become the largest wildfire of the 2021 California fire season; by August 6, it had grown to become the largest single (i.e. non-complex) wildfire in the state's history, burning an area larger than the state of Rhode Island. It was the first fire known to have burned across the crest of the Sierra Nevada (followed by the Caldor Fire later in the season). Smoke from the Dixie Fire caused unhealthy air quality across the Western United States, including states as far east as Utah and Colorado. The Dixie Fire was the most expensive wildfire in United States history, costing $637.4 million to fight (this figure does not include damage or insurance claims, only suppression costs).

Contributing factors
A number of background factors contributed to the size and intensity of the Dixie Fire. 2021 was the hottest summer ever recorded in California. That year also saw further intensification of what scientists have found to be the most extreme megadrought in at least 1,200 years in the Western/Southwestern United States, amplified by high temperatures, low precipitation, and anthropogenic climate change : during the 2021 water year ( the period between October 1, 2020, and September 30, 2021), Northern California received less than half of its usual precipitation. The Sierra snowpack, measured during its typical peak on April 1, was just 59% of the historical average, and runoff just 20% of the amount forecast. Reservoirs in the state shrunk, and vegetation dried out to the point where both living and dead conifers were drier than kiln-dried lumber.

Rigorous fire suppression policies in the United States also meant that much of the area burned by the Dixie Fire had little fire history, going back more than 40 years. The resulting overcrowded forests became more vulnerable to drought, as well as bark beetle infestations that were the primary cause of death for more than 163 million trees in California between 2010 and 2019. Bark beetle-affected forests (especially species common in the Sierra Nevada such as the lodgepole pine) are chemically altered, rendering them more flammable and subject to intense crown fires.

Ignition
The Dixie Fire began beneath a Pacific Gas and Electric (PG&E) 12-kilovolt power distribution line, located on the south-facing northern slope of the Feather River Canyon in a remote area above Highway 70 and Cresta Dam, midway between Paradise and Belden. Transmission lines, also operated by PG&E, further down the canyon were the cause of the devastating and fatal Camp Fire in 2018.

At approximately 6:48 AM, a 65-foot tall Douglas fir, 65 feet tall and 16 inches in diameter, fell onto the power line. Why the tree fell was the subject of analysis in later investigations—an arborist with Cal Fire said the tree was weakened after burning in the 2008 Butte Lightning Complex, while another arborist hired by PG&E noted possible root rot. When the tree fell onto the line, two fuses blew, but one remained active, keeping the power line energized. The tree, in contact with both the line and the ground, created an electrical fault. Electric arcing gradually ignited the receptive fuel bed on the ground over the following hours.

At 1:30 PM, a PG&E troubleman (a lineworker that responds to outages) responded to address the power outage. The roads to access the power lines were in poor condition, and the troubleman was forced to stop at a bridge undergoing repairs. The troubleman left and returned at approximately 4:30, continuing up the road to the power lines and arriving 10 minutes later. Noticing the two blown fuses, the troubleman was in the process of shutting off the third when he smelled smoke—looking down, he observed a fire approximately 600 to 800 square feet in size, burning among pine needles. The troubleman shut off the third fuse, then took a fire extinguisher from his truck and unsuccessfully attempted to put the fire out. He was able to raise his supervisor on the radio, who called 911. In the meantime, the troubleman returned to the fire with another fire extinguisher and a McLeod tool, attempting to dig a firebreak.

Around this time, as the fire became visible from Highway 70 at the bottom of the opposite side of the Feather River Canyon, multiple 911 calls reported the fire. An fire engine strike team leader returning home from the Beckwourth Complex called 911 at roughly 5:12 PM, reporting the well-established fire, about 40 ft. by 40 ft. burning beneath the power lines.

By 5:15 PM, the Oroville emergency command center had dispatched a full wildland response, including 6 fire engines, 2 bulldozers, 2 handcrews, 2 water tenders, 2 airtankers, and a helicopter. The aircraft were overhead by 5:42 PM, reporting that the now-named Dixie Fire was 2 acres with a slow rate of spread, and promptly began to drop water and fire retardant around the fire. By 6:31, aircraft had completed a line of fire retardant around the entire perimeter, and the fire remained 2 acres. The ground-based personnel, however, faced the same access issues that had plagued the PG&E troubleman, including the damaged bridge and nearly impassable dirt roads.

Compounding the struggle to attack the fire aggressively, at 7:49 PM a drone was reported in the vicinity of the fire, and all aircraft were ordered to leave the area. Because it was so late in the evening and regulations do not permit most firefighting aircraft to fly at night, air operations were not able to resume that night. The drone's appearance meant about 45 minutes of flying time was lost, which Butte County District Attorney Mike Ramsey said played a large role in the fire escaping control after dark. The drone's operator was never identified, even after investigation.

At this point during the night of July 13, with aircraft no longer able to help, limited ground access, and the fire exposed to up-canyon winds, the Dixie Fire began to grow considerably.

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PG&E inspectors patrolled the area in November 2020 and January 2021.

Slope of 50 degrees at 2400 feet elevation. Tree Douglas fir 65 feet tall, approx 90 years old, approx 15.8 inches diameter, damaged in 2008 Butte Lightning Complex, fell and contacted conductors at approx. 6:48 AM PDT. Two fuses blew, one remained closed and kept the line energized. "The tree being in contact with energized conductors and the ground created a high impedance fault" Heat and arcing slowly ignited through the tree to the receptive fuel bed, until PG&E troubleman arrived at 4:55 PM. Fire visible from Highway 70 at abt the same time, prompted multiple 911 calls.

1:30 PM troubleman drives up road, stopped at bridge for repairs. Repairs done 3:20 PM ish

4:30 troubleman returns to bridge

4:40 troubleman arrives at fuses

+2 hrs, troubleman arrives at powerlines, pulls 3rd fuse, notices smoke and fire, 600-800 square feet. only in pine needles and attempted to put out himself, using entire fire extinguisher, but fire got into manzanita bush. Returned to truck, supervisor calling on radio. He told supervisor, supervisor told 911. Troubleman returned to fire with other pressurized fire extinguisher and McLeod tool, tried to dig firebreak.https://s1.q4cdn.com/880135780/files/doc_downloads/wildfire_updates/2021/07/1408.pdf

4:45-5 PM PG&E employee overhears troubleman on radio sounding frantic abt fire

5:07 call from PG&E employee at Rock Creek Powerhouse, relaying secondhand info.

5:12 call from engine strike team leader coming home from Beckwourth. Reported well-established 40x40 ft fire burning under powerlines.

5:15 Oroville wildland response, details in report

5:42 PM, aircraft arrive overhead, 2 acres, slow ROS

6:31 holding at 2 acres retardant all around

7:49 drone reported

8:01 air ops halted bc of drone

No lightning for 7 days previously, not a holdover.

Tree that fell had possible rot. Was 70 feet tall, seemed healthy. This ref also can tie into impacts: CPUC and others wanting aggressive line clearance/tree cutting Investigators removed tree parts, equipment, etc. over days after ignition

What did Cal Fire report criticize? Delayed response, no deenergization, in area/time known for bad fires, so close to Camp Fire ignition point.

Fly Fire PG&E https://s1.q4cdn.com/880135780/files/doc_downloads/wildfire_updates/2021/08/Dkt.-1416-Response-to-Order-Requesting-Information-Regarding-Dixie-Fly-and-Other-Fires.pdf

July
[EXPAND AND SMOOTH CONSIDERABLY]

Early on, Pacific Gas and Electric Company (PG&E) stated that it believes the fire may have been started by its equipment, sparking the fire near the same network of PG&E power lines where the Camp Fire originated. A minor power outage was detected on the morning of July 13. A PG&E maintenance worker, who had been considerably delayed by bridge repairs blocking his route to the remote site, arrived to find a fallen tree on a live power line. It had started a small brush fire. He attempted to extinguish the blaze by himself, without success. Cal Fire sent aircraft to drop water on the fire. Ground crews tried to reach the site, but they were delayed by poor roads. An illegal drone appeared over the fire, endangering and forcing a premature halt to helicopter operations that were intended to extinguish the blaze and which may have "played a major part in the blaze burning out of control after darkness fell."

Over the next few days the fire progressed rapidly northeast along the Feather River canyon, forcing the closure of Highway 70, the Union Pacific Railroad’s Feather River Route, and nearby areas of the Plumas National Forest and Lassen National Forest. By July 19 it had burned 40500 acre; over the next two days, the fire more than doubled in size to 85000 acre, driven by high winds. As of July 21, the fire was 15 percent contained, with nearly 4,000 firefighters and numerous aircraft assigned to the incident.

By July 23, flames had traveled north almost to Highway 89 and Lake Almanor, after jumping over Butte Valley Reservoir. On the east flank, the fire was advancing toward Bucks Lake and Indian Valley, and on the west, it was burning toward Butte Meadows. It had grown to 167,430 acre with 18 percent containment. Governor Gavin Newsom declared a state of emergency for Plumas, Butte, Lassen and Alpine counties due to the Dixie, Fly and Tamarack Fires.

On July 24 the fire expanded rapidly east, burning through Paxton and then Indian Falls, destroying around a dozen structures. Firefighters successfully kept the fire north of Bucks Lake, while flames approached the Indian Valley communities of Crescent Mills, Greenville and Taylorsville on the east. Later that night it merged with the smaller Fly Fire, which had started the previous day north of Quincy and burned over 4300 acre. The Dixie Fire grew to 181,289 acre with 19 percent containment.

On July 30 the fire was at 240595 acre, becoming the 11th largest wildfire in California history, having grown 20000 acre in a single day. However, much of the growth was due to islands of unburned vegetation within the fire perimeter, as well as back burning operations to protect homes in Butte Meadows and Jonesville. Firefighters also contained the eastward spread of the fire with back burning from Mount Hough down to Quincy.

August
At the start of August, the fire was most active on the north flank, having split into two main branches, with one burning up the western shore of Lake Almanor, and the other burning northeast toward Indian Valley. Fire activity was greatly decreased along the south side from Bucks Lake to Quincy, as well as the west side around Butte Meadows. Beginning on August 3, after several days of calmer weather, a major wind event drove the fire up the west shore of Lake Almanor, threatening Chester and other nearby communities. Firefighting efforts were concentrated on protecting the town, while the fire front continued sweeping north into Lassen County, the Lassen National Forest and the eastern side of Lassen Volcanic National Park.

On the evening of August 4, the northeast flank of the fire jumped containment lines at Indian Valley and burned through the town of Greenville. An estimated 75 percent of structures in Greenville were destroyed, including much of the downtown and numerous nearby homes. The firestorm was compared to "a huge tornado" and took less than half an hour to destroy the town before leaping to the other side of Indian Valley and continuing northeast towards Mountain Meadows Reservoir. The whole Dixie Fire grew to over 320000 acre, an increase of 50000 acre in the previous two days, and was 35 percent contained. It became the sixth-largest wildfire in California history, surpassing the North Complex that burned nearby in 2020.

On August 5, the fire burned much of Canyondam as it approached the eastern shore of Lake Almanor. By the morning of August 8, the fire had grown to 463477 acre, surpassing the 2018 Mendocino Complex Fire to become the second largest fire in the state's history, with containment falling to 21 percent. Starting on August 13 increased winds pushed flames primarily to the east. The northern section of the fire expanded around the north side of Lake Almanor, heading east and south and threatening Westwood. The fire's eastern section, having burned past Indian Valley, continued to race east towards Antelope Lake. It became the first fire to ever cross from the west side of the Sierra Nevada to the valley floor on the east side.

In the evening of August 16, winds of up to 30 mph (48 kmh) drove embers from the Dixie Fire over the Diamond Mountains and into the Honey Lake Valley. A number of spot fires ignited south of Janesville and crossed Highway 395, destroying several homes. This put areas south of Johnstonville under mandatory evacuation warning, including the town of Janesville. Continued southwest winds threatened to push the fire towards Susanville. In Lassen National Park, the area burned within the park had doubled to 22000 acre, and firefighters were building line to protect Manzanita Lake and Old Station areas.

On August 18, the Dixie Fire merged with the Morgan Fire, which had been started by lightning August 12, near the south entrance of Lassen National Park. In addition to burning north into the park, the Morgan Fire had threatened the communities of Mineral and Mill Creek just to the south. The Morgan and Dixie fires were joined by a backfire set in order to reduce fuels adjacent to the two towns. By the end of the day, the Dixie Fire had grown to over 635000 acre, an increase of more than 80000 acre since August 15, with containment at 33 percent.

By August 22, the Dixie Fire approached Milford but crews were able to protect the structures and containment rose to 37%, the highest since the fire began. Growth of the fire slowed overnight due to increased humidity but overall weather conditions remained challenging.

Associated arson
In late July and early August of 2021, U.S. Forest Service investigators allegedly foiled an alleged spree of wildland arson by former university professor Gary Stephen Maynard in the vicinity of the Dixie Fire. Investigators ultimately connected Maynard to at least five separate fires, all of which were suppressed at 1 acre or smaller in size, and which did no serious damage. However, the Moon, Ranch, and Conard fires were set behind crews battling the Dixie Fire. Prosecutors seeking to prevent Maynard's release while awaiting trial argued that the fires might have seriously endangered those personnel, leaving them trapped between the Dixie Fire and Maynard's fires, had investigators not already been tracking Maynard and able to detect the fires early on.

On July 20, 2021, mountain bikers reported the Cascade Fire on the western slope of Mount Shasta. A responding Forest Service investigator encountered Maynard attempting to free his car from a rut on a dirt road nearby, and took a photo of the car and its tire tracks. The next day, investigators responding to the Everitt Fire in a nearby part of the Shasta-Trinity National Forest noted identical tire tracks. Both fires were determined to have been caused by arson; additionally, burnt newspaper and a match were found where Maynard's car had been stuck. After linking Maynard to the two fires via several other methods, including surveillance footage and his use of an electronic benefit transfer (EBT) card, investigators received a warrant to track Maynard's phone and vehicle. On August 3, 2021, during a stop for a traffic violation in Susanville, a Forest Service agent placed a tracking device on Maynard's car. On August 5, the agents tailing Maynard discovered the roadside Moon Fire, in an area of the Lassen National Forest under an evacuation order for the fast-growing Dixie Fire. Maynard continued to camp in Lassen National Forest despite emergency closure orders, and on August 7 agents discovered the Ranch and Conard fires burning near Maynard's campsite. Tracking data supported his presence at the scenes of ignition.

Maynard was arrested on August 7 by a California Highway Patrol officer, and indicted by a federal grand jury on November 18, 2021. Multiple people who encountered Maynard prior to his arrest and indictment expressed concerns about his mental state. Maynard remains in custody awaiting trial, where if convicted he may face up to 20 years in prison and fines of $250,000 per count of arson. The arrest of Maynard and of Alexandra Souverneva a month later for starting the destructive Fawn Fire near Redding prompted many to downplay the role of climate change, and spread rumors and conspiracy theories about causes of California wildfires.

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On August 10, Gary Stephen Maynard, a former University professor, was charged with starting a fire near the perimeter of the Dixie fire. On July 20, 2021, a U.S. Forest Service investigator had encountered him where a small fire had been set and referred to as the Cascade Fire. The investigator photographed Maynard's vehicle. Tire tracks similar to those made by Maynard's vehicle had been found near the 300-acre (almost 1/2 square mile) Bradley Fire on July 11 and the negligible Everitt Fire on July 21 in the Shasta-Trinity National Forest. On August 3, using a traffic stop as a subterfuge to distract Maynard, an investigator placed a magnetic tracking device on the suspect's car while he was in the vicinity of the Moon Fire which had ignited August 5, and the Ranch and Conard fires, which ignited on August 7, in Lassen National Forest. He was also believed to have been in the vicinity of the Sweetbriar Fire, that started on August 6. Deputies from Lassen County took Maynard into custody when he was discovered in an emergency closure area close to the Conard Fire. In 2020, a former colleague of Maynard had alerted San Jose, California police to his alarming mental state. Through obtaining his phone number recorded in that report, investigators traced the locations of his associated cell phone and his use of an Electronic benefit transfer (EBT) card to the vicinities of still more fires. The charging documents indicated that the fires had been set behind first responders who were engaged in fighting blazes, compromising their safety. Thanks to a subpoena, investigators were being alerted by Verizon Wireless of Maynard's location every 15 minutes before his apprehension.

September
The fire continued burning in the two management zones, the East Zone and West Zone. The eastern zone was mostly Plumas National Forest and the western zone was mostly Lassen Volcanic National Park and Lassen National Forest. The eastern zone extended to the escarpment south of Milford, where firefighters continued efforts to protect the town. By September 6, containment had reached 57%, but extreme fire activity continued and strong winds pushed the fire down off the escarpment to containment lines at the base of the slope. By September 10, fire crews were "mopping up" heat near the fire's edge south of Milford. in the West Zone, winds pushed the fire to the northeast, threatening Hat Creek, and Old Station. Old Station was put under evacuation orders on September 8, and by the 10th, the fire had jumped containment lines and crossed Highway 44. Fire crews began using Union Pacific Railroad’s fire train, which can deliver 30,000 gallons of water per load to fill water tenders. On September 9, the weather became more favorable, especially in the West Zone, with calm winds, cooler temperatures down into the 30s overnight, up to a quarter-inch of rain, and rising humidity resulting in minimal fire activity. Favorable conditions were expected to continue throughout the week. As of September 13, the few remaining areas of persistent heat and flames were all within the interior of the burned area, and containment had increased to 86% by September 16. By 18 September, the fire was 88% contained; firefighters reinforced containment lines and monitored/patrolled the fire for hot spots within the fire lines. As of 18 September, fire crews continued to monitor, patrol, and respond to hotspots within the fire. Weather conditions deteriorated leading to potential increase in fire activity due to the increased winds. Rain and work by firefighters on 19 September kept fire activity within the existing perimeter and the increase in reported acreage reflected vegetation burned within that perimeter. On 22 September, containment reached 95% and firefighters successfully contained the last portion of uncontained fire in the Devil's Punchbowl area of the East Zone. On 1 October, Devil's Punchbowl was devoid of heat based on infrared data and InciWeb indicated a 94% overall containment for the Dixie Fire (East and West Zone).

January 2022 - cause determined
On January 4, 2022, CalFire determined that "the Dixie Fire was caused by a tree contacting electrical distribution lines owned and operated by Pacific Gas and Electric (PG&E) located west of Cresta Dam." CalFire forwarded the investigative report to the Butte County District Attorney's office, the same federal office that prosecuted PG&E in 2018 following the Camp Fire. PG&E pled guilty to 85 felonies in that case.

Though the 2018 and 2021 fires were both ignited in the Feather River canyon - ignitions were about 5 miles apart - the Camp Fire was caused by a faulty hook on a transmission tower that resulted in a power line touching the ground, while the Dixie Fire was caused by a "healthy green tree" falling and striking distribution lines.

Detailed chronologies and visualizations

 * Anatomy of a wildfire: How the Dixie Fire became the largest blaze of a devastating summer
 * See How the Dixie Fire Created Its Own Weather: This year’s largest blaze generated powerful storm clouds. We show you in 3-D.
 * Inside the Massive and Costly Fight to Contain the Dixie Fire

Impacts
A Los Angeles Times column estimated that it might take $1 billion to rebuild the town of Greenville. Meanwhile, only 300 residents plan to return.

On April 11, 2022, PG&E reached a settlement agreement with multiple California county prosecutors. Paid $55 million in exchange for...

https://www.plumasnews.com/da-answers-questions-regarding-pge-settlement-for-dixie-fire/

Casualties and damage
The Dixie Fire destroyed 1,329 structures, of which at at least 600 were residential. It damaged another 96 structures, and threatened 14,000 more. Communities that were largely destroyed by the fire include Greenville, Canyondam, and Indian Falls. In downtown Greenville the fire destroyed multiple historic buildings, many dating back to the 19th-century California Gold Rush. In Lassen National Park, the fire destroyed the Mount Harkness Fire Lookout and possibly other historic facilities within the park. The Tásmam Koyóm valley that was returned to the Maidu as part of the Pacific Gas and Electric Company bankruptcy in 2019 lost a historic stagecoach stop and suffered damages to its cattle-grazing and culturally significant planting areas.

Three firefighters were injured on the Dixie Fire. One fatality was reported: a firefighter died due to COVID-19 illness suspected to have been contracted during suppression efforts.

Evacuations
On July 21, evacuation orders were issued for Butte Meadows in northeast Butte County and the west shore of Lake Almanor in Plumas County, while the east shore of Almanor and the town of Chester were under an evacuation warning. By July 24 evacuation orders were extended to Greenville, Crescent Mills, Taylorsville, and other communities along the Feather River canyons east and west of the fire, as well as Bucks Lake, Meadow Valley and parts of Quincy. As of July 25, about 7,400 people in Plumas County and 100 people in Butte County had been evacuated.

On August 3, Chester, Lake Almanor Peninsula and Hamilton Branch were evacuated as the fire advanced north toward Lassen National Park, bringing the total number of people evacuated to 26,500. On August 4 evacuation orders were issued in southwest Lassen County, particularly the areas south of Highway 44 and Mountain Meadows Reservoir, and evacuation warnings for Westwood and Pine Town.

A list of previous evacuation orders is available from Cal Fire.

Closures
On July 24, Lassen National Park was closed to backcountry camping, and the Warner Valley and Juniper Lake areas were closed to all visitors. On August 5, the entire park was closed to visitors as the Dixie Fire burned into the eastern side of the park.

As of August 2, State Routes 32, 89, 147, 36, and 70 were closed to through traffic in the area of the Dixie Fire.

Air pollution
Smoke from the Dixie Fire caused unhealthy air quality throughout the Western United States. On August 6 in Salt Lake City the small airborne particulates (PM2.5) level spiked to more than 3 times the federal standard, and caused the area to temporarily have the worst air quality in the world. The particulates causing the poor air quality in Utah came from the Dixie and other fires. In early August, the Colorado Department of Public Health and Environment reported unhealthy air pollution levels in much of the state.

While not attributed specifically to the Dixie Fire, air quality in New York City was poorer than usual during the summer of 2021 due to wildfires in the western U.S.

Costs
The Dixie Fire resulted in the most expensive wildfire suppression effort in United States history, in part due to a reliance on contracted and higher-paid local and private firefighters. The final cost of containing the Dixie Fire came to $637.4 million, split between multiple agencies such as CAL FIRE and the U.S. Forest Service.