Floriston Fire explodes to 298 acres, closing westbound Interstate 80 near the state line.

Fire officials reported a spot fire about a mile ahead of the Floriston Fire’s main front, indicating the blaze was advancing beyond its primary perimeter.
The evacuation warning for Zone NCO-379 was issued at 10:58 a.m. Wednesday; the zone lies just northwest of Interstate 80 and several miles north of Lake Tahoe.
Fire crews from the Tahoe National Forest were among the agencies responding to the wildfire, alongside Cal Fire’s Nevada-Yuba-Placer Unit.
The initial westbound Interstate 80 closure extended between Farad Road and Floriston, while Nevada transportation officials separately closed westbound lanes at the California state line.
AlertCalifornia cameras captured a large smoke plume from the fire, providing visual confirmation of the blaze’s intensity and visibility in the region.
The Floriston Fire near Truckee, California, exploded from 20 acres to at least 298 acres by Wednesday afternoon, forcing westbound Interstate 80 to close near the Nevada border and prompting evacuation warnings for nearby communities sacbee. The fast-moving blaze burned through timber and brush with a dangerous rate of spread, visible as heavy smoke plumes from the Reno area, as fire crews from Tahoe National Forest and Cal Fire's Nevada-Yuba-Placer Unit rushed additional air and ground resources to the scene hindustantimes.
Nevada County issued an evacuation warning for Zone NCO-379 at 10:58 a.m. Wednesday, urging people who need extra time to leave, including those with pets or livestock dailydispatch. No evacuation order or injuries were reported as of Wednesday, but the fire threatened the Truckee watershed and nearby natural resources, with its cause remaining under investigation kcra.
Fire officials reported a dangerous spot fire about a mile ahead of the Floriston Fire's main front, signaling the blaze was advancing rapidly beyond its primary perimeter. The spot fire near Verdi Peak ignited around 11 a.m. Wednesday, just an hour after the initial report sacbee. Down-canyon winds through the Truckee River canyon carried embers across steep, rugged terrain, creating multiple fire zones and complicating suppression efforts.
Westbound Interstate 80 closed between Farad Road and Floriston after Nevada transportation officials separately closed westbound lanes at the California state line dailydispatch. Cal Fire characterized the closure as indefinite, with officials stating they would assess roadway conditions with fire personnel before reopening due to hazardous debris and rolling rocks kcra. The closure blocked a primary commercial and commuter artery connecting California and Nevada, forcing drivers to seek alternate backcountry routes.
By Thursday morning, the Sacramento Regional Incident Management Team assumed unified command of the response, coordinating Cal Fire, the U.S. Forest Service, California Highway Patrol, and county sheriff's offices sacbee. Over 670 personnel were assigned to the fire, including 20 engines, 10 water tenders, 12 hand crews, and 8 dozers, with multiple aircraft deploying night-flying helicopters as winds eased overnight hindustantimes. Aerial mapping measured the burn footprint at 613 to 640 acres by Wednesday evening, with only 5% containment achieved.
Nevada County escalated Zone NCO-379 into two sub-zones by late Wednesday, with NCO-E379-A moving to a mandatory evacuation order kcra. Sierra County issued evacuation warnings for zones SIE-E099 and SIE-E100-B, covering areas several miles north of Lake Tahoe. Northern Nevada Public Health issued air quality advisories for Reno-Sparks, Verdi, and Mogul due to dense smoke drifting eastward, while NV Energy de-energized local power lines affecting 131 customers.
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