Twentyfive Mile BAER

KMZ Data File Available for TwentyFive Mile Fire Soil Burn Severity:

http://www.centralwashingtonfirerecovery.info/2021/wp-content/uploads/2021/10/TwentyFiveMile_BurnSeverity-kmz-1.zip

Reports

Twentyfive Mile Fire Burned Area Summary
[8-page PDF]

Maps TwentyFive Mile Soil Burn Severity Map:

• Map available in JPG and PDF format

• A KMZ file is also available to view the map in greater detail in Google Earth (and many other mapping programs). Download the KMZ zip file, then double-click it to extract the KMZ file and save to your computer. Open the Google Earth program. [If you don’t already have Google Earth, you can download and install it for free HERE.]  Drag the KMZ file onto the Google Earth program icon or main screen (or in Google Earth, click File, Import and select the KMZ file). After the KMZ file loads,  you can zoom way in for more detail, change the angle of view, show or hide each burn severity level, and adjust transparency of levels.

Additional Information on Soil Burn Severity Levels:

Low severity- These zones where subjected to predominantly an understory burn that consumed approximately 10- 30% surface vegetative ground cover. Black charring of litter intermixed with grey ash is present. Hydrophobicity is generally absent but there are areas that are extremely dry that experienced weak hydrophobicity.

Moderate severity- Tree canopy cover of 50-80% usually has been consumed. The majority of the ground cover has been consumed with approximately 30 - 15% vegetative ground cover being retained. Grey ash is predominantly present, larger diameter organic matter material of .25-.5 inches is consumed, and soils are strongly hydrophobic. This indicates that high levels of heat were introduced to the soil. These sites are expected to be a source of ash, infiltrations rates will decline, runoff will increase, and soil loss will be accelerated.

High severity- Usually all tree canopy cover has been consumed of 90% or greater. Ground cover has been fully consumed with approximately 5-10% coarse woody debris material remaining. Finer organic material and woody material .5-1 inch has been fully consumed, ash is deep and generally grey, and soils are strongly hydrophobic. Infiltration will be reduced drastically, and accelerated soil loss is predicted to occur. High levels of ash will be immobilized from these sites.

Field Guide for Mapping Post-Fire Soil Burn Severity

Runoff Potential Map:

• Map available in JPG and PDF format

• A KMZ file is also available to view the map in greater detail in Google Earth (and many other mapping programs). Download the KMZ zip file, then double-click it to extract the KMZ file and save to your computer. Open the Google Earth program. [ If you don’t already have Google Earth, you can download and install it for free HERE. ]  Drag the KMZ file onto the Google Earth program icon or main screen (or in Google Earth, click File, Import and select the KMZ file). After the KMZ file loads,  you can zoom way in for more detail, change the angle of view, show or hide each level, and adjust transparency of levels.

Map Disclaimer: These map products are reproduced from information prepared by the USDA Forest Service or from other suppliers. The Forest Service cannot ensure the reliability or suitability of this information for a particular purpose. The data and product accuracy may vary due to compilation from various sources, including modeling and interpretation, and may not meet National Map Accuracy Standards. This information may be updated, corrected or otherwise modified without notification.