Forecast conditions represent impacts from smoke. Contributions from ozone and other pollutants
are not reflected.
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Smoke Synopsis:
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On Friday, based on 24-hour averages, a number of
PM Monitors reported “Good” or “Moderate” air quality in the area. But, Mad River reported “USG”
condition. “Unhealthy” condition was
reported at Anderson/Redding. “Very
Unhealthy” condition was reported at Hayfork, Hyampon, Burnt Ranch and
Weaverville. With a High pressure
established over the area, air quality is not likely to improve in the next
few days.
Today: Smoke
dispersion will be limited due to slow transport wind over the area. Northwesterly/Westerly onshore wind will
flow to Trinity/Shasta County line today.
Tonight, weak offshore Northeasterly wind is expected tonight in Del
Norte, Humboldt and Trinity County and Northerly wind is expected in Siskiyou
and Shasta County. Smoke will settle in
Trinity River drainage, South Fork Trinity River drainage, Klamath River
drainage and the Sacramento Valley tonight.
Tomorrow: Smoke
dispersion will be limited due to slow transport wind over the area. Northeasterly offshore wind is expected in
Del Norte County. Northerly wind is
expected in Siskiyou County. Onshore
Westerly/Northwesterly wind is likely to occur in Humboldt and Trinity
County. Wind in Sacramento Valley is going
to be weak. Tomorrow night, offshore northeasterly
wind in Del Norte County will continue, but Northerly wind is expected in
Shasta County. Smoke will settle in Trinity River drainage, South Fork
Trinity River drainage, Klamath River drainage and the Sacramento Valley again
tomorrow night.
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Air Quality Outlook: Shasta-Trinity & Six Rivers Complexes
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Site
|
Saturday
August 15, 2015
|
Sunday
August 16, 2015
|
Monday
August 17, 2015
|
Comments
|
|
Crescent City
|
Moderate
|
USG
|
USG
|
Smoke
impact from Oregon fires.
|
|
Gasquet
|
Moderate
|
USG
|
Moderate
|
Smoke
impact from Oregon fires.
|
|
Happy Camp
|
Moderate
|
USG
|
USG
|
Smoke
impact from Oregon fires.
|
|
Etna
|
Moderate
|
Moderate
|
Moderate
|
Smoke
impact from Oregon fires.
|
|
Mt. Shasta
|
Moderate
|
Moderate
|
Moderate
|
Smoke
impact from Oregon fires.
|
|
Tulelake
|
Moderate
|
Moderate
|
Moderate
|
Smoke
impact from Oregon fires.
|
|
Yreka
|
Good
|
Unhealthy
|
Unhealthy
|
Smoke
impact from Oregon fires.
|
|
Eureka
|
Good
|
Good
|
Moderate
|
|
|
Hoopa
|
Moderate
|
Moderate
|
Moderate
|
|
|
Mad River/Dinsmore
|
USG
|
USG
|
Unhealthy
|
|
|
Orleans
|
Moderate
|
Moderate
|
Moderate
|
|
|
Weitchpec
|
Moderate
|
Moderate
|
Moderate
|
|
|
Willow Creek
|
USG
|
USG
|
Moderate
|
|
|
Burnt Ranch
|
Unhealthy
|
Unhealthy
|
Unhealthy
|
|
|
Hayfork
|
Hazardous
|
Hazardous
|
Hazardous
|
8/15 & 8/16: Varying little
throughout
|
|
Hyampom
|
Hazardous
|
Hazardous
|
Hazardous
|
8/15 & 8/16: Heaviest
during afternoon
|
|
Weaverville
|
Unhealthy
|
Very
Unhealthy
|
Hazardous
|
|
|
Anderson/Redding
|
Unhealthy
|
Unhealthy
|
Unhealthy
|
|
|
Disclaimer:
Forecast conditions represent air quality levels affected by fine
particulates; contribution from ozone and other pollutants is not reflected. Conditions may change quickly, these
projections are based on anticipated weather and fire activity. Sensitive groups including individuals with
asthma, lung or heart disease, children, older adults, and pregnant women
should take precautions to avoid exposure to smoke. If you feel as though you are having health
effects from smoke, see your doctor or health professional as needed. In some cases your eyes are your best
tools. If it is smoky outside, you are being impacted. Use caution when driving in or around smoky
areas.
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AQI Index
|
Actions to Protect Yourself
|
|
Good
|
None
|
|
Moderate
|
Unusually sensitive people
should consider reducing prolonged or heavy outdoor exertion.
|
|
Unhealthy for Sensitive
Groups - USG
|
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.
|
|
Unhealthy
|
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.
|
|
Very Unhealthy
|
Everyone should avoid any outdoor exertion; people with
respiratory or heart disease, the elderly and children should remain indoors.
|
|
Hazardous
|
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
|
Links:
Shasta County Air Pollution Control
District - http://www.co.shasta.ca.us/index/drm_index/aq_index.aspx
Siskiyou County Air Pollution Control
District http://www.co.siskiyou.ca.us/content/agriculture-air-pollution-control-district
Wildfire Smoke – A Guide for Public Health Official from California Air Resource Board
Wildland Fire Personnel Smoke Exposure Guidebook from National Interagency Fire Center
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