Fire Pattern Indicator, White Ash

  • There are two subsets of the white ash fire pattern indicator, deposits and exposure.
    1. Objects displaying more white ash deposits on the exposed surface of the object as opposed to the protected surface of the object indicating the direction of fire progression at that location.
    2. Objects displaying more attached white ash on the exposed surface of the object as opposed to the protected surface of the object indicating the direction of fire progression at that location.
    One of the 11 NWCG categories of fire pattern indicators. Source: Guide to Wildland Fire Origin and Cause Determination, PMS 412.
Glossary Tag: 
WFISC
PMS412