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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


Today's Data   Data Timelines   Ozone Health Advisory  
Ozone Friday September 19, 2014 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 34 31
1 AM 41 30
2 AM 35 28
3 AM 30 27
4 AM 36 28
5 AM 34 28
6 AM 23 28
7 AM 21 30
8 AM 22 32
9 AM 23 34
10 AM 30 36
11 AM 35 38
12 PM 38 39
1 PM 37 38
2 PM 38 39
3 PM 38 39
4 PM 38 39
5 PM 40 39
6 PM 42 39
7 PM 41 38
8 PM 37 36
9 PM 40 35
10 PM 41 34
11 PM 38 32
Weather and Ozone Data Friday September 19, 2014
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 34 1.4 NW 8.9 95 1 0.0
1 AM 41 1.6 NW 7.9 91 1 0.0
2 AM 35 0.9 SW 7.2 94 1 0.0
3 AM 30 1.1 W 6.5 96 1 0.0
4 AM 36 1.1 W 6.2 96 1 0.0
5 AM 34 1.0 W 6.6 96 1 0.0
6 AM 23 0.9 N 5.6 96 1 0.0
7 AM 21 0.9 NW 5.4 96 1 0.0
8 AM 22 0.8 NW 5.7 96 25 0.0
9 AM 23 1.1 S 7.8 95 179 0.0
10 AM 30 2.1 S 9.6 89 383 0.0
11 AM 35 2.5 S 11.8 76 545 0.0
12 PM 38 2.1 SW 12.8 65 356 0.0
1 PM 37 2.2 SW 13.6 57 447 0.0
2 PM 38 3.2 SW 15.4 45 691 0.0
3 PM 38 3.3 SW 15.0 45 432 0.0
4 PM 38 2.5 SW 15.0 49 276 0.0
5 PM 40 3.0 SW 16.1 43 492 0.0
6 PM 42 2.6 SW 15.8 45 314 0.0
7 PM 41 1.9 SW 13.6 52 57 0.0
8 PM 37 0.9 NW 10.3 70 5 0.0
9 PM 40 1.2 SW 10.0 69 1 0.0
10 PM 41 1.5 SW 11.2 59 1 0.0
11 PM 38 1.2 SW 10.5 63 1 0.0
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updated on 09/20/2014 9:41 PM  I   http://www.nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster