Air Quality Report Issue
Date: 08/18/2015
Rough Fire – Sierra
National Forest Prepared
by: Rick Graw and Ariane Sarzotti
Forecast conditions represent impacts
from smoke from the Rough Fire.
Contributions from ozone and other pollutants are not reflected.
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Fire: The Rough Fire grew approximately 2500 acres
yesterday, increasing the perimeter to 23,600 acres. Active fire behavior occurred at the
eastern and western portions of the fire.
Thick smoke persisted throughout the much of the day within the
canyon, limiting suppression activities.
Air Quality Today: This morning, hazy skies and ash fall
out was occurring in the Hume Lake area.
The temperature inversion is not expected to fully break today,
consequently leading to smoky conditions remaining over the area. Afternoon transport winds out of the
west-northwest will transport smoke this afternoon and evening into the Owens
Valley, and will be most heavy over Independence. Overnight, the temperature inversion will
strengthen again, leading back to the same overnight patterns as have been
occurring these past several days.
Air
Quality Tomorrow: Air quality will remain moderate to unhealthy over much
of the area, with the same diurnal pattern occurring.
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Smoke Impacts from Local Fires
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Site
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Yesterday Observed
Midnight-Midnight
24-Hr AQI
August 17, 2015
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Today Forecast
24-Hr AQI
August 18, 2015
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Tomorrow
Outlook
24-Hr AQI
August 19, 2015
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Worst Time of Day Impacts
3-Hour AQI and Period
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Trimmer
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Moderate
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Moderate
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Moderate
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Moderate, 9 A.M. to Noon
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Prather
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Moderate
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Good
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Good
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Moderate, 9 A.M. to Noon
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Shaver
Lake
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Good
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Good
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Moderate, 10 A.M. to Noon
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Hume
Lake
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USG
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USG
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USG
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Unhealthy 8 A.M to 1:00 P.M.
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Cedar
Grove
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Unhealthy
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Unhealthy
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Unhealthy
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Unhealthy 9 A.M. to 3:00 P.M.
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Devils
Post Pile
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Moderate
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Good
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Good
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Moderate 11 pm to 1:00 A.M.
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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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Moderate 5:00 P.M. to 8:00
P.M.
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Bishop
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Moderate
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Moderate
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Moderate
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USG 8:00 P.M to Midnight
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Big
Pine
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Moderate
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Moderate
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USG 8:00 P.M. to Midnight
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Independence
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USG
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USG
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USG
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Unhealthy 6:00 P.M. to 9:00 P.M.
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Dunlap
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Good
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Good
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Good
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Moderate 9:00 A.M. to 12:00
P.M.
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Pinehurst
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Moderate
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Moderate
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Moderate
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USG 7:00 A.M. to 9:00
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Three
Rivers
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Moderate
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Moderate
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Moderate
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Moderate 7:00 A.M. to 11:00
A.M.
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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
California Smoke Blog - http://californiasmokeinfo.blogspot.com/
San Joaquin Air Pollution
Control District - http://www.valleyair.org/aqinfo/forecast.htm
Interagency Real Time Smoke Monitoring
- http://app.airsis.com/usfs/fleet.aspx
This photo was taken yesterday, afternoon August 17, 2015,as the fire burned along a cliff face at Horseshoe bend on Hwy 180.
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