For more information about National Park Service air resources, please visit http://www.nature.nps.gov/air/.
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View from Look Rock
Looking East - Air Data
& Weather - NPS Air
Webcams
Visual Range is about 81 miles • updated 02/15/2013 01:15 AM EST
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Ozone (O3)
updated 02/15/2013 12:00 AM EST
O3 concentration | Current | Today's Maximum |
Yesterday's Maximum |
---|---|---|---|
8-hour average | 46 ppb | 46 ppb | 44 ppb |
1-hour average | 45 ppb | 48 ppb | 46 ppb |
*Ozone (O3) is measured in parts per billion (ppb)
Particulate Matter (PM2.5) updated 02/15/2013 01:00 AM EST
Weather updated 02/15/2013 01:00 AM EST
Current temperature | 39 F |
Yesterday's minimum temperature | 30 F |
Yesterday's maximum temperature | 42 F |
Current relative humidity | 66 % |
Yesterday's minimum relative humidity | 83 % |
Yesterday's maximum relative humidity | 100 % |
Current wind speed | 3 mph |
Current wind direction | SSW |
Current solar radiation | 0 watts/m 2 |
Precipitation in last hour | 0.00 in. |
Precipitation since midnight | 0.00 in. |
Yesterday's precipitation | 0.14 in. |
Visibility updated 02/15/2013 02:00 AM EST
Approximate Visual Range |
Current | Yesterday's Maximum |
Yesterday's Minimum |
---|---|---|---|
81 miles | 133 miles | 1 miles |
Current Air Quality »
Ozone - O3
updated 02/15/2013 12:00 AM EST
updated 02/15/2013 12:00 AM EST
Current Weather »
updated 02/15/2013 01:00 AM EST
Temperature
39 F
Humidity
66 %
Wind
SSW-3 mph
Precipitation - 1 hr
0 in.
About
Air Pollution »
In Depth »
Last Updated: February 14, 2013