Smoke
Outlook: Umpqua North/High Cascades
Complex
Issued for: Thursday
31, 2017
Air
Resource Advisor: Jen Croft, Aaron Wilkerson
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Fire
Activity: High Cascades is reported at 25,232 acres with 20 fires. Umpqua North is reported at 23,501 with 14
fires. Hot and dry conditions combined with clear skies will contribute to an
increase in fire behavior today. This
will cause active short crown runs group torching and short-range spotting
along uncontrolled perimeter. Expect see interior unburned islands becoming active
with smoke and flames contributing to visible large smoke plumes
Smoke: Winds out of the northeast will provide some relief over the
previous days smoky conditions.
Roseburg, Glide and Shady Cove will see significantly
better air quality all day. The Rogue Valley down to Medford is not likely to
see a dramatic improvement but may experience pockets of clearing throughout
the day with lighter smoke. East of the Cascades, Chiloquin and Klamath are
expected to see some slight improvements throughout the day. Thursday night
into Friday, a stronger east to west gradient will set up. This will likely
bring stronger sustained easterly winds and gusts across the Complex area
during the overnight hours and through the morning bringing improved air
quality to Crater Lake, Prospect, Chiloquin, Klamath and Shady Cove.
*The Oregon Department of Environmental
Quality has issued an Air Quality Alert in and around the outlook area and is
in effect until further notice. Wildfires burning in the region combined with
forecast conditions will cause air quality levels to fluctuate and could be
at unhealthy levels.
For additional information...please visit
the web site at: http://www.oregon.gov/deq
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Air
Quality Outlook
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Sites with air quality monitors
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Site
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Thursday
08/31
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Friday
09/01
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Saturday
09/02
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Notes for TODAY’s forecast
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Roseburg
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Good
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Moderate
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USG
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NE winds providing
relief all day
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Glide
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Good
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Moderate
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USG
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NE winds providing
relief all day
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Toketee**
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Unhealthy
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USG
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USG
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Pockets of relief
throughout the day
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Diamond Lake**
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Moderate
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Moderate
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Good
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Brief impact during
late afternoon
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Prospect
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Unhealthy
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USG
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Unhealthy
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Pockets of relief
throughout the day
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Shady Cove
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Moderate
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Moderate
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Moderate
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Brief impact during
late afternoon
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Crater Lake NP (visitor center)
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Moderate
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Moderate
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Moderate
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Brief impact during
late afternoon
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Chiloquin
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USG
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Moderate
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Moderate
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Clearing conditions
until evening hours
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Klamath
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USG
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Moderate
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Moderate
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Clearing conditions
until evening hours
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Disclaimer: Conditions may change quickly. These
predictions are based on anticipated weather and fire activity. AQI estimates
for sites do not represent a full 24-hour time period. Instead they reflect a period of time
within the day where smoke impacts would be greatest.
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AQI Index
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Actions to Protect Yourself
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Good
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None
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Moderate
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Unusually sensitive people should
consider reducing prolonged or heavy outdoor exertion.
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Unhealthy for Sensitive Groups*- USG
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People with heart or lung disease,
children and older adults should reduce prolonged or heavy outdoor
exertion. Everyone else should limit
prolonged or heavy exertion.
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Unhealthy
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The
following groups should avoid all physical outdoor activity: People with
heart or lung disease, children and older adults. Everyone else should avoid prolonged or
heavy exertion.
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LimitedVery
Unhealthy
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Everyone
should avoid any outdoor exertion; people with respiratory or heart disease,
the elderly and children should remain indoors.
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Hazardous
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The following groups should remain
indoors and keep activity levels low: People with heart or lung disease;
children and older adults. Everyone else should avoid prolonged or heavy
exertion
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Oregon Smoke
Blog:
Oregon Dept of
Environmental Quality
Blanket Creek Fire Information
Umpqua North Complex Fire Information
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