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Current Ozone and Weather Data in National Parks


Yellowstone National Park - Water Tower, WY
EPA AQS Site Number: 56-039-1011


Yesterday's Data   Data Timelines   Ozone Health Advisory  


Ozone Friday August 28, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 41 28
1 AM 39 25
2 AM 35 22
3 AM 25 20
4 AM 22 20
5 AM 23 22
6 AM 20 23
7 AM 20 26
8 AM 17 28
9 AM 16 31
10 AM 19 34
11 AM 28 36
12 PM 33 37
1 PM 38 38
2 PM 40 --
3 PM 40 --
4 PM 38 --
5 PM 38 --
6 PM 38 --
Weather and Ozone Data Friday August 28, 2015
Hour
Ending
(Local Time)
Ozone
(parts per
billion)
Wind
Speed
(meters per
second)
Wind
Direction
Temperature
(degrees C)
Relative
Humidity
(%)
Solar
Radiation
(watts per
meter
squared)
Rainfall
(millimeters)
12 AM 41 1.9 W 9.7 80 -- 0.0
1 AM 39 1.3 W 8.9 85 -- 0.0
2 AM 35 1.4 SW 8.5 87 -- 0.0
3 AM 25 1.0 N 6.7 93 -- 0.0
4 AM 22 0.8 NW 6.3 96 -- 0.0
5 AM 23 0.7 W 6.2 96 -- 0.0
6 AM 20 0.8 NW 5.5 97 -- 0.0
7 AM 20 0.9 NW 5.1 97 1 0.0
8 AM 17 0.5 W 5.7 97 42 0.0
9 AM 16 1.0 SE 8.2 93 268 0.0
10 AM 19 1.5 SE 10.9 81 456 0.0
11 AM 28 1.9 SE 14.1 67 625 0.0
12 PM 33 1.8 SE 16.0 56 747 0.0
1 PM 38 1.8 SE 17.9 46 821 0.0
2 PM 40 1.7 SE 19.6 39 682 0.0
3 PM 40 1.3 E 19.6 39 413 0.0
4 PM 38 1.7 SW 21.3 31 471 0.0
5 PM 38 2.8 SW 21.6 24 416 0.0
6 PM 38 2.9 SW 21.1 25 315 0.0
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updated on 08/28/2015 8:41 PM  I   http://nature.nps.gov/air/data/current/data_YELL-WT.cfm   I  Email: Webmaster