Air Quality Report Issue Date: 09/13/2015
Rough Fire Prepared
by: Tod Johnson
Forecast conditions represent impacts
from smoke from the Rough Fire wildfire.
Contributions from ozone and other pollutants are not reflected.
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Fire: The fire perimeter grew yesterday due to
persistent warm temperatures and lower relative humidity. Smoke is being
produced by interior burning and burnout operations along containment lines
which are designed to stop the spread of the fire to the west. Estimated
increase in size is 134,000 acres, up approx. 6,000 acres from yesterday -
containment is 29%.
Air Quality
Today: Heavy
concentrations of smoke are expected near the fire and to the west foothills today. Smoke will be slow to lift and transport
will be primarily terrain and diurnally driven. Limited ventilation is
forecast for today with continued increased impacts expected in the San
Joaquin Valley west and northwest of fire. Unhealthy to Hazardous conditions are expected
in the foothill communities west and northwest of the fire, but improving in
the evening. Conditions begin to worsen in the Owens Valley as winds shift
south-southwest in the afternoon.
Air Quality Tomorrow: A more south to southwest wind will begin to
alleviate smoke impacts in the San Joaquin Valley. More smoke will impact the
Owens valley.
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Particulate Matter (PM 2.5) Impacts
from the Rough fire
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Site
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Yesterday Observed
Midnight-Midnight
24-Hr AQI
September 12, 2015
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Today Forecast
24-Hr AQI
September 13, 2015
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Tomorrow
Outlook
24-Hr AQI
September 14, 2015
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Best Time of Day
September 13
AQI and Period
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Trimmer
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USG
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Unhealthy
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USG
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Best early evening
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Prather
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USG
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Unhealthy
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Moderate
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Best early evening
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Shaver
Lake
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USG
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Moderate
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Best
in the evening
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Oakhurst
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Moderate
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Moderate
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Moderate
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Best
in the evening
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Wishon
Reservoir
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Very Unhealthy
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USG
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Moderate
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Best in the evening
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Hume
Lake
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Hazardous
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Unhealthy
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Unhealthy
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No significant improvement
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Cedar
Grove
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No data
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Unhealthy
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USG
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USG morning to mid afternoon
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Grant
Grove
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No data
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Hazardous
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USG
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Late afternoon to early
evening
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Dunlap/Squaw
Val.
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USG
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Unhealthy
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Moderate
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Late afternoon to mid-evening
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Mammoth
Lakes
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Moderate
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Good
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Good
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Best before late afternoon
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Aspendell
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USG
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Moderate
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USG
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Best before noon
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Bishop
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Moderate
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Moderate
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USG
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Before early afternoon
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Big
Pine
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Moderate
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USG
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Before early afternoon
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Independence
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Moderate
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USG
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Before early afternoon
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Pinehurst
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Unhealthy
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Unhealthy
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Moderate
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Late afternoon to early
evening
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Montecito-Sequoia
Lodge
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Very Unhealthy
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Unhealthy
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USG
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Early through late evening
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Lodgepole
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USG
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Good
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Good
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Early through late evening
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Three
Rivers
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USG
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Moderate
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Good
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Early through late evening
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Ash
Mountain
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USG
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Moderate
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Good
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Early through late evening
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Kernville
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Moderate
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Good
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Good
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Good
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Disclaimer: 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
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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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View of the fire:
Buck Rock Web Camera #3, http://rockyags.cr.usgs.gov/dashboards/WebCam.htm
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