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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 Tuesday April 22, 2014 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 66 57
1 AM 65 55
2 AM 66 53
3 AM 63 51
4 AM 53 50
5 AM 49 50
6 AM 52 51
7 AM 49 52
8 AM 50 54
9 AM 48 55
10 AM 50 57
11 AM -- 59
12 PM 56 59
1 PM 56 59
2 PM 58 58
3 PM 61 57
4 PM 60 56
5 PM 61 55
6 PM 62 54
7 PM 60 53
8 PM 54 52
9 PM 49 52
10 PM 51 52
11 PM 56 51
Weather and Ozone Data Tuesday April 22, 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 66 0.8 N 5.0 31 1 0.0
1 AM 65 0.8 NW 3.8 37 1 0.0
2 AM 66 1.0 SW 3.9 37 1 0.0
3 AM 63 1.2 S 3.8 48 1 0.0
4 AM 53 1.9 S 2.7 85 1 0.9
5 AM 49 0.9 S 0.5 96 1 2.8
6 AM 52 1.2 SW 0.1 96 1 1.7
7 AM 49 1.0 SW 0.2 96 2 1.3
8 AM 50 0.9 SW 0.4 96 7 0.8
9 AM 48 1.1 SW 0.4 96 18 0.1
10 AM 50 0.8 SW 2.0 93 106 0.0
11 AM -- -- -- -- -- -- --
12 PM 56 1.4 S 6.3 74 771 0.0
1 PM 56 2.0 S 8.7 63 831 0.0
2 PM 58 2.5 SE 9.1 53 709 0.0
3 PM 61 3.2 S 9.7 45 775 0.0
4 PM 60 3.0 S 9.3 47 369 0.0
5 PM 61 2.8 S 10.9 42 564 0.0
6 PM 62 3.1 S 9.8 45 339 0.0
7 PM 60 3.0 SW 7.0 62 83 0.0
8 PM 54 3.1 SW 4.8 76 22 0.0
9 PM 49 1.7 SW 2.4 86 2 0.1
10 PM 51 1.9 SW 0.8 90 1 0.1
11 PM 56 2.9 SW -0.1 84 1 0.0
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updated on 04/23/2014 11:42 AM  I   http://nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster