Gann Fire grows to nearly 6,500 acres as evacuation zones expand 2%
By Dominic Fracassa1% Anthony Edwards3% Chrissa Olson1%
8/4/2026, 6:59:54 AM
BS Summary: This article contains 6 faulty reasoning types, including Appeal to Emotion, Negativity Bias, and Post Hoc (False Cause), with Appeal to Authority as the most egregious example at 16.7% saturation with 119 hits. Analysis detected 235 faulty-reasoning hits from 712 analyzed words, generating a BS Score of 7.3% and a BS Rank of 2% (26,837 of 27,322 articles). This article is better (less manipulative) than 98.20% of the article peer group.
The 6,495-acre Gann Fire burning in Calaveras County prompted evacuation orders as hundreds of firefighters worked to build containment lines in rugged terrain.
The blaze was 0% contained as of Tuesday morning.
It was burning through mixed vegetation, including oak woodland.
Late Monday evening, the smoke plume reached about 18,000 feet in height and was picked up by radar more than 100 miles away.
The fire, which originated just below New Hogan Lake, is burning aggressively upslope in the Central Sierra foothills but without the presence of “extreme fire weather conditions,” noted Daniel Swain, an expert with University of California Agriculture and Natural Resources.
The issue, Swain wrote on social media, is that it is “burning in an area without much recent fire history, and fuel loading is pretty high.
Also, landscape level vegetation flammability is at or near record high levels by some metrics.”
According to Stacy Nolan, a spokesperson for Cal Fire Tuolumne-Calaveras Unit, the the blaze was heading northwest of Copperopolis, and west of Pool Station Road as of 5 p.m.
Tuesday.
She said there were no structures damaged, or injuries to civilians or firefighters.
It grew from 3,760 acres to 6,495 acres by Tuesday evening.
In essence, the fire is burning through extraordinarily dry vegetation, which keeps it burning ferociously despite the lack of strong winds.
Such conditions mean that “fires may exhibit more intense fire behavior than normal,” according to California’s Wildfire Forecast and Threat Intelligence Integration Center.
Smoke has begun to impact air quality in downwind communities.
In El Dorado Hills, Cameron Park and Placerville, the air quality index ranged from the moderate to unhealthy categories at 2 p.m.
Winds were gusting up to 15 mph from the west Tuesday afternoon and evening, and should shift to being out of the north overnight.
The fire started just before 5:30 p.m.
Monday, but what sparked it was not immediately known.
The first evacuation orders were issued at around 8:18 p.m.
Monday, as the fire grew to just over 300 acres.
As of Tuesday morning, the Gann Fire was the fourth-largest wildfire being handled by Cal Fire.
Smoke blanketed parts of the eastern Central Valley and parts of the northern and central Sierra Nevada.
“Firefighters worked tirelessly overnight attacking the fire from the ground and air,” Cal Fire officials said Tuesday morning, adding that the fire’s rate of spread remained “moderate.”
As of Tuesday evening, a Cal Fire update said about 250 total personnel were assigned to the fire alongside 50 engines, four helicopters and more.
The Federal Aviation Administration closed the surrounding airspace at about 2 p.m.
Tuesday and prevented any flights in or out of the Calaveras County Airport in order to allow firefighting aircraft to operate safely.
The National Interagency Fire Center said there was a moderate to high risk of significant wildfires throughout Northern California this week as a heat wave persisted across the region.
High temperatures in the vicinity of the Gann Fire were forecast to remain around 100 degrees through Saturday, with lows in the upper 60s.
Relative humidity was predicted to drop below 20% during the day, and remain below 40% at night, allowing the fire to stay active, even after dark.
Mandatory evacuation orders, signaling an immediate threat to life and property, were issued Monday night for anyone living in the following zones:
CCU-109
CCU-110
CCU-130-B
CCU-139
CCU-140
CCU-147
Evacuation warnings were also issued for zones CCU-111, CCU-131, CCU-148 and CCU-153, representing an area east of the mandatory evacuation zones.
Evacuation shelters were set up at Valley Springs Veterans Memorial at 189 Pine Street, Valley Springs, which accepts small pets.
Animal evacuation shelters were also available at the Calaveras County Fairgrounds at 2465 Gun Club Road, Angels Camp, which accepts large animals.
In a statement on Facebook, the Calaveras County Sheriff's Office said they had received and "overwhelming" outpour of support from the community, and directed any donations to Hospice of Amador & Calaveras, located at 570 N.
Main Street in Angels Camp.
The following roads were also fully closed: Pool Station Road at Cement Plant Road; Pool Station Road at Highway 4; Hogan Dam Road at Hunt Road and Bear Creek Day Use Area at Hogan Dam Road.
Speakers
8speakers42%attributed speech415writer words
Selected voice
100%flagged-word coverageCal Fire officials
27 attributed words9.1% of attributed speech6.5% writer coverage
Attribution is sentence-level. Pattern percentages are calculated only from words assigned to that voice.
Loading…
Loading…
Loading…
Loading…
Analysis
Hover over highlighted words in the article to view the associated bias or fallacy analysis.