The fire was first reported just east of Highway 97, three miles northwest of Bray, California on June 28, 2021.

The fire burned 10,580 acres (4,282 ha), destroyed five structures, and caused evacuations in Macdoel, California.

[7] By the morning of June 30, the fire had burned almost 9,500 acres (3,845 ha), was six percent contained, and had destroyed five structures, two of which were homes.

A heat advisory was also in effect for the area, through July 4, leading to concerns about increased fire activity.

Controlled burns on the eastern flank helped keep the fire in check, lessen threats to local communities, and increase containment.

[3] The Tennant Fire resulted in the evacuation of residents and businesses in portions of Macdoel, California starting June 29.

Klamath Falls and Lakeview, Oregon, implemented a five air quality advisory due to the smoke.

[14] The post-fire Burned Area Emergency Response (BAER) evaluation reported that approximately 55 percent of the 11,513 acres (4,659 ha) evaluated were unburned or had low soil burn severity, meaning only partial consumption of fine fuels took place during the fire and litter coverage remains relatively intact.

Finally, 6 percent suffered from high soil burn severity, meaning the land experienced intense fire and that recovery time for conifers will be considerably long.