Burnout operations on the Eastern
perimeter above Oakridge combined with increased burning of unburned islands
and perimeter edge resulted in an additional 370 acres of fire growth yesterday
and through the evening. Smoke was captured by the monitors in Westfir and
Oakridge last evening as cool nighttime air flowed down slope into the lower
drainages. Today, firing crews will continue burnout operations to strengthen
lines on the perimeter west of Oakridge.
The smoke from the burnout operation is forecast to disperse to the west
and southwest away from Oakridge and Westfir although some smoke will drift
into the Oakridge communities this morning.
We forecast the air quality to reach “Unhealthy for Sensitive Groups” this morning in Westfir and “Moderate”
for Dexter and Oakridge. Gradual improvement
through daytime warming, atmospheric instability and East winds this afternoon
but cooling after sundown will result in some smoke pooling in the Oakridge and
Westfir communities overnight.
The communities of Cottage Grove and Roseburg
will see some smoke this afternoon.Air Quality Forecast for Friday (Particulate Matter less than 2.5 µm in diameter)
|
Site
|
Friday Morning
Sep 5, 2014
|
Friday Afternoon
Sep 5, 2014
|
Friday Evening
Sep 5, 2014
|
|
Oakridge
|
Moderate
|
Good
|
Moderate
|
|
Westfir
|
Unhealthy for Sensitive Groups
|
Moderate
|
Unhealthy for Sensitive Groups
|
|
Dexter
|
Moderate
|
Good
|
Good
|
24 Hour Average PM2.5 surface concentrations
Friday 9/5/2014 Deception Complex
