Heat and Winds Hamper Pioneer Fire Containment 

- The Pioneer Fire is burning north of Idaho City in the Boise National Forest. -  - BOISE NATIONAL FOREST
  • Boise National Forest
  • The Pioneer Fire is burning north of Idaho City in the Boise National Forest.


Hot air and gusty winds are hampering efforts to fight the Pioneer Fire.

Fire officials said warmer temperatures forecast Sunday, Aug. 14 through Tuesday, Aug. 16 are "concurrent with prime burning conditions that are at historic highs," pushing the fire through the Deadwood River basin north of Idaho City.

The high pressure ridge that has resulted in an unstable air mass and "unseasonably hot and dry conditions" may also spawn thunderstorms throughout the region. However, fire behavior is expected to lessen "once the weather system passes and winds decrease, along with some minor increases in relative humidity," officials said.

The fire, now burning at 71,190 acres, is being fought by 48 fire crews, nine helicopters, 58 engines, 15 bulldozers and 26 water tenders.

A Level 1 evacuation order is in effect for homes east of Grimes Pass Road on the south side of the South Fork of the Payette River, where fire activity has increased along the Pioneer Fire's western perimeter. In addition, firefighters have responded to two illegal campfires in the area, where a restriction is in place.

The Pioneer Fire is 40 percent contained.
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