Download - Burns/Hines Smoke Intrusion Lessons Learned
2003 - 2005 FS Escape Rx Fires
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Burns/Hines Smoke Intrusion Lessons Learned
FALT presentation November 7, 2006
Hazardous Fuels Ponderosa Pine underburn unit.Unit was burned on Oct. 12, 2006
1200 acre unit was located 25 miles NW from
Burns, Or.
Intrusion Date and Duration• October 13, 2006 • Unhealthy readings in Burns • Lasted from 3 am through 9 am.• By 9 am PM 2.5 was back into moderate range. • No further intrusion resulted.
What happened??• Smoke plume capped several thousand feet
above unit.• Overnight the smoke flowed down Silvies river
drainage and extended into town.• By 3 AM Nephelometer readings were in the
unhealthy range.
Mitigations
• 2 PSA’s issued via local radio station.
• Aggressively moped up unit.
• Cancelled any further ignition.
Future changes developed.
• Verify smoke info has been submitted through FASTRACS to Salem.
• Stress with Burn Boss the importance of following smoke forecasts along with the spot weather forecast.
• Pay particular attention to the direction of smoke plume and anticipate night movements.
Air Quality Rating
Air Quality Index (AQI)
PM2.5 24-hour Average
(micrograms/m3)
8-hour Ozone Concentration
(ppm)
Carbon Monoxide
8-hour average (ppm)
GOOD 0-50 0-15.4
0-0.064 0.0-4.4
MODERATE 51-100 15.5-40.4 0.065-0.084 4.5-9.4
UNHEALTHY for Sensitive
Groups (UFSG)
101-150 40.5-65.4 0.085-0.104 9.5-12.4
UNHEALTHY 151-200 65.5-150.4 0.105-0.124 12.5-15.4
VERY UNHEALTHY
201-300 150.5-250.4 0.125-0.155 15.5-30.4
HAZARDOUS >300 >250.4 >0.155 >30.4
0
50
100
150
200
LaGrande Bend Burns Hillsburo Klamath Falls
Unhealthful
Unhealthful SG
Moderate