Los Angeles River Ranger District / Angeles National
Forest
Incident Commander
Michael Dietrich
Current Situation
Total Personnel
2,575
Size
42,500 acres
Percent Contained
5%
Estimated Containment Date
Tuesday September 08th, 2009 approx 06:00 PM
Fuels Involved
Very heavy fuels of ceanothus, chamise, scrub oak and manzanita across
the entire fire area, 15 to 20 feet in height with Big Cone Douglas Fir in
the drainage bottoms. Fuels have not experienced any significant large
fire activity in the past 40 years.
Fire Behavior
Fire behavior was extremely active with rapid rates of spread and flame
lenghts up to 80 feet. All thresholds in place for determination of active
fire behavior have been exceeded. Inversions to settle in after 4:00 am.
Ridgetop winds will be relatively steady and light. Spotting may occur
from 1/4 mile up to 1/2 mile.
Significant Events
Mandatory Evacuations are in effect in many locations. The fire is
threatening the Mount Wilson Communications Facilities and Observatory and
may reach these locations this burning period. Unified Command has
expanded.
Outlook
Planned Actions
Prepare and protect structures when and where necessary. Air operations
may be limited because of convection columns.
Growth Potential
Extreme
Terrain Difficulty
Extremely steep and inaccessible
Remarks
18 homes have been destroyed. 10,000 homes threatened. 500 commercial
properties and 2,000 other stuctures threatened.
