Overview
- Cal Fire says the Floriston Fire is burning on the western embankment of the Truckee River Canyon and has shown wind-driven behavior with long-range spotting.
- Early size estimates put the blaze at about 20 acres with a possible expansion to roughly 200 acres if the dangerous rate of spread continues.
- The Nevada County Sheriff’s Office issued evacuation warnings along the I‑80 corridor including Boca Reservoir while nearby neighborhoods such as Hirschdale, Glenshire and Prosser remain close to warning zones.
- CHP Truckee closed westbound I‑80 at the California–Nevada state line with no reopening time given and agencies including Cal Fire and Caltrans are conducting suppression and traffic-safety operations.
- The closure risks wider travel and supply disruptions on the trans‑Sierra route and compounds recent strain on the corridor after a separate Aug. 28 tractor‑trailer crash near Floriston that had earlier closed I‑80.