Air Quality Report Issue Date: 09/12/2015
Rough Fire Prepared by: Tod Johnson
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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 produced yesterday
was from the continued burning of interior islands, uphill fire spread and
burnout operations along containment lines Northwest of Grant Grove. The fire
is at 128, 670 acres, up 11,000 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. Conditions
improve in the Owens Valley.
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
northern portion of 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 11, 2015
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Today Forecast
24-Hr AQI
September 12, 2015
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Tomorrow
Outlook
24-Hr AQI
September 13, 2015
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Best Time of Day
September 12
AQI and Period
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Trimmer
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Unhealthy
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USG
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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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USG
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Moderate
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Best early evening
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Shaver
Lake
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Moderate
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Moderate
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Best early evening
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Oakhurst
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Moderate
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USG
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Moderate
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Best early to late afternoon
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Wishon
Reservoir
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Moderate
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Moderate
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USG
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Best early morning
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Hume
Lake
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Very Unhealthy
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Unhealthy
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Hazardous
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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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Hazardous
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Best conditions morning
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Grant
Grove
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No data
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Hazardous
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Hazardous
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No significant improvement
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Dunlap/Squaw
Val.
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Very Unhealthy
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Unhealthy
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Unhealthy
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Early to mid-evening
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Mammoth
Lakes
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Moderate
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Good
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Moderate
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Early morning through early
afternoon
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Aspendell
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Moderate
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Good
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USG
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Early morning through early
afternoon
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Bishop
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Good
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Good
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USG
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Early Morning through late
afternoon
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Big
Pine
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Good
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Moderate
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No significant difference
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Independence
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Good
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Good
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No significant difference
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Pinehurst
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Very Unhealthy
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Very Unhealthy
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Hazardous
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Moderate late morning into
afternoon
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Montecito-Sequoia
Lodge
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Very Unhealthy
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USG
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Unhealthy
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Early to late afternoon
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Lodgepole
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USG
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Good
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USG
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late morning to mid
afternoon
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Three
Rivers
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Moderate
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Moderate
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Unhealthy
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Early to late evening
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Ash
Mountain
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Moderate
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Moderate
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Unhealthy
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Early to late evening
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Kernville
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Good
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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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