Smoke
Outlook: Umpqua North Complex
Issued for: Monday, August 21, 2017
Air
Resource Advisor: Jen Croft
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Fire: Active fire spread between the three segments will continue to
provide for firefighter safety. Good
progress is being made with the additional small fires within the complex,
showing limited fire growth. Periods
of ESE winds and unstable airmass will provide opportunities for additional
fire growth today.
Smoke: The arrival of ESE winds in the morning will bring a chance of
clearing conditions during the eclipse event, pushing stagnant haze into a
mixing wind. WNW winds are expected to
return in the afternoon along with an unstable air mass which may allow for
some additional fire activity and smoke production. Late afternoon conditions will see the
return of widespread geographic haze around 1pm as the N-NE winds push smoke
from the Umpqua North and HWY 97 corridor back into the area.
Tourists at Crater Lake National Park will be able
to view and smell smoke. Visitors should check for road closures and other
announcements ahead of time. Visitors
can check https://www.nps.gov/crla/planyourvisit/conditions.htm for updates.
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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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Monday
August 21, 2017
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Tuesday
August 22, 2017
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Wednesday
August 23, 2017
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Notes for Saturday’s forecast
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Roseburg
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Moderate
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Moderate
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Moderate
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Monitor under maintenance
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Glyde/Idleyld Park
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Moderate*
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Moderate*
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Moderate*
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Steamboat/ Toketee Falls
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UNHEALTHY*
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USG*
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USG*
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Highest concentrations in late evening
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Diamond Lake
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USG*
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USG*
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USG*
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Highest concentrations in late evening
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Crater Lake NP (visitor center)
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UNHEALTHY
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UNHEALTHY
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UNHEALTHY
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Highest concentrations in late evening
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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.
* = no monitor on site
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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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Very
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
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