Typical of late spring, early growing season. Fire consumes most surface litter along with a significant loss in organic soil material. Site preparation burns expose mineral soil, producing areas causing erosion problems. 100 and 1000 hour fuels contribute to fire intensity. Stumps and snags ignite.
Escaped fire is difficult to control.
Fire behavior is still predictable. Increased mop-up and petrol activities are required. Above 400 KBDI, typical of late summer, early fall. All surface litter and most of the organic layer is consumed by fire leaving excessive site damage. 1000 hour fuels contribute readily to fire intensity.