Wednesday, November 1, 2017/lk
WENATCHEE The Central Washington Burned Area Emergency Response team has completed gathering data and field verifications on national forest lands within the Diamond Creek, Uno Peak, Jack Creek and Jolly Mountain fires.
The team led was led by Okanogan-Wenatchee National Forest BAER Coordinator Molly Hanson and Greg Kuyumjian.
Burn severity maps of those areas, along with Norse Fire BAER team maps, are available at http://centralwashingtonfirerecovery.info. Chris Stewart led the Norse team.
Soil burn severity refers to effects of fire on soil characteristics. They include the depth of char (a downward heat pulse into the soil), loss of organic matter through consumption of duff, litter and fine roots, altered surface color, damage to soil structure and reduced infiltration.
Burn severity can vary across the fire area depending on topography, weather conditions, fuel types and rate of fire spread. When organic materials on the ground and within the soil structure burn, they can form water-repellent conditions on the surface and within the soil, reducing the ability of water to move downward into the soil and resulting in an increase in surface runoff.
The Diamond Creek Fire burned in the Pasayten Wilderness and into Canada. It was reported July 23 and was declared controlled Oct. 23 after weather stations at Harts and Washington passes reported 22-25 inches of snow with high moisture content.
All area and trail closures were lifted Oct. 20.
The fire burned 128,272 acres and led to Level 1 and Level 2 evacuation alerts in the Mazama, Rendezvous and Lost River areas. Its cause is listed as unknown.