September 11 Fire Update

Tenaya Fire: This wildfire began on the afternoon of September 7, 2015, and is being suppressed. It is located along the Lehamite Creek Trail from the north rim of the Valley to the Tioga Road. The fire is currently at 455 acres with 25% containment.

The Incident Commander noted that fire activity has moderated today in part due to the aviation assets and crews on scene. The fire continues to flank across slopes and creep through surface fuels as well as the understory of trees. Single tree torching was also noted. Short range spotting was observed due to variable winds; however firefighters and helicopter water drops were able to put these out. The firefighter efforts at the heel or anchor point continue to hold as they make good progress along both flanks of the fire. Firefighter actions were able to reduce the need for air tanker operations.

Although fire retardant has been employed in the suppression of the Tenaya Fire, firefighters are adhering to Minimum Impact Suppression Techniques (MIST). They are looking for opportunities to tie fire line into granite rock, trails, and other natural barriers with the least impacts to the environment, cultural and historical features.

Assisting organizations and cooperators include the US Forest Service, Bureau of Land Management, and other National Park Service resources. There are 241 personnel committed to the fire.

Risks include firefighter and visitor safety, and to the Tioga Road. A closure of the road would negatively affect the local communities that rely on park visitation, including the communities of Lee Vining, Mammoth Lakes, Groveland and Mariposa.

There has been one minor injury. There is no threat to structures. There is no estimate for full containment and the cause is being investigated.

A Safety Closure, issued by the park superintendent, is in place. It will remain in place until rescinded. All trails on the north rim of Yosemite Valley south of the Tioga Road and east of Yosemite Creek are closed. Trail blocks are in place – please adhere to their warnings of exclusion.

Currently no roads are closed within the park.