Fire Terms

Sunday, September 7, 2014

9/07/2014 Deception Complex Air Quality Report

Deception Complex Air Quality Report - 09/07/2014


Yesterday’s operations limited fire growth; however, burning of interior islands produces the main smoke plumes.

This nighttime burnout combined with continued burning of interior islands resulted in an additional smoke
production yesterday’s shift. Some of the smoke from yesterday descended on is causing elevated PM
concentrations Sunday morning from Dexter east to Oakridge. Smoke also flowed down the Deception creek
drainage impacting the Westfir community last night. Oakridge conditions remained good throughout the day and
night times.

Today’s winds will switch to light west winds increasing by this afternoon, and if conditions are right, the burn
team will begin burnout operations on the north west perimeter. Smoke will linger all day from Dexter to
Oakridge as smoke drifts down valley. Anticipate Eugene and Cottage Grove to be hazy today, coming under to
influence of the Yellow Pine fire. 

Afternoon winds are forecast to be light west moving smoke to the north and
north east with mostly upslope during the day and down slope at night. Cooler temperatures and a more stable
atmospheric will suppress lofting with the majority of this smoke settle in the Oakridge area. 

We forecast the air quality to reach “Unhealthy for Sensitive Groups” in Westfir as smoke vents down the Deception Creek drainage this afternoon, and “Moderate” for Oakridge into the evening as smoke pools with cooling temperatures.

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