NASA image: Rim Fire update Sept. 11, 2013

Firefighters faced extremely hot and dry conditions which contributed to more active fire activity with isolated flare-ups inside current containment lines. The fire is active in the Clavey River Reynolds Creek and Jawbone Creek drainages as well as to the west of Harden Lake, Harden Road and Tioga Road. Moderate fire spread to the northeast into Yosemite Wilderness areas north of Hetch Hetchy reservoir is expected. Unburned tinder within and adjacent to the fire perimeter continue to consume and create spotting near or across planned containment lines. As such the percent contained remains the same. The reported containment percentage will increase when fire activity subsides.

The fire remains at 80% contained with over 255,000 acres affected. The Rim Fire is the largest fire of this fire season and the third largest now in California history.

This natural-color satellite image was collected by the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Terra satellite on September 11, 2013. Actively burning areas, detected by MODIS's thermal bands, are outlined in red.