Wednesday
August 19, 2015
Shasta-Trinity
& Six Rivers Complexes Mike Broughton & Jen Croft
Forecast conditions represent impacts from smoke. Contributions from ozone and other pollutants
are not reflected.
Smoke Synopsis:
|
The ridge of high pressure has begun to weaken slightly
over northern California, which should start to allow some additional smoke dispersion
late this afternoon into the next couple days. Smoke plumes able to rise above the valleys
will drift to the east and south on Thursday and Friday. High pressure is expected to build a bit
over the weekend again reducing smoke transport, then early next week winds
may shift, becoming southwesterly sending smoke to the northeast.
Coastal sections should see a definitive increase
in marine influence, which should keep smoke out of the immediate areas but
may present a visibility problem on roads where moist marine air mixes with inland
valley smoke. The deep inland valleys
are still expected to remain impacted with dense smoke through Thursday
afternoon, although there may be some minor relief looking ahead to Friday.
Fire behavior remains moderately active, and may
pick up a bit Thursday as the ventilation improves somewhat.
|
Air Quality Outlook: Shasta-Trinity & Six Rivers Complexes
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Site
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Wednesday
August 19, 2015
|
Thursday
August 20, 2015
|
Friday
August 21, 2015
|
Comments
|
Crescent City
|
Moderate
|
Moderate
|
Good
|
Reduced
visibility is possible on inland valley roads where smoke and coastal moisture
mix.
|
Gasquet
|
Moderate
|
Moderate
|
Moderate
|
|
Happy Camp
|
Unhealthy
|
USG
|
Moderate
|
|
Etna
|
Unhealthy
|
USG
|
Moderate
|
|
Mt. Shasta
|
Moderate
|
Moderate
|
Moderate
|
|
Tulelake
|
USG
|
Moderate
|
Good
|
|
Yreka
|
USG
|
Moderate
|
Good
|
|
Eureka
|
Moderate
|
Moderate
|
Good
|
Reduced
visibility is possible on inland valley roads where smoke and coastal moisture
mix.
|
Hoopa
|
Very Unhealthy
|
Very Unhealthy
|
Very
Unhealthy
|
Improving conditions
possible Friday afternoon.
|
Mad River/Dinsmore
|
Very Unhealthy
|
Unhealthy
|
Unhealthy
|
Improving conditions
possible Friday afternoon.
|
Orleans
|
Unhealthy
|
Unhealthy
|
Unhealthy
|
Improving conditions
possible Friday afternoon.
|
Weitchpec
|
Unhealthy
|
Unhealthy
|
Unhealthy
|
Improving conditions
possible Friday afternoon.
|
Willow Creek
|
Hazardous
|
Very Unhealthy
|
Very Unhealthy
|
Improving conditions
possible Friday afternoon.
|
Burnt Ranch
|
Hazardous
|
Very Unhealthy
|
Very Unhealthy
|
Improving conditions
possible Friday afternoon.
|
Hayfork
|
Hazardous
|
Hazardous
|
Very Unhealthy
|
Improving conditions
possible Friday afternoon.
|
Hyampom
|
Hazardous
|
Hazardous
|
Very Unhealthy
|
Improving conditions
possible Friday afternoon.
|
Weaverville
|
Very Unhealthy
|
Very Unhealthy
|
Very Unhealthy
|
Improving conditions
possible Friday afternoon.
|
Anderson/Redding
|
Moderate
|
Moderate
|
Good
|
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.
|
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
Smoke Monitoring: smoke.airfire.org/monitoring
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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