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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 Wednesday April 23, 2014 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 54 50
1 AM 52 49
2 AM 52 49
3 AM 51 49
4 AM 51 49
5 AM 49 49
6 AM 47 50
7 AM 45 50
8 AM 51 51
9 AM 50 50
10 AM 51 50
11 AM 51 50
12 PM 52 49
1 PM 53 48
2 PM 51 47
3 PM 49 46
4 PM 48 46
5 PM 48 45
6 PM 49 44
7 PM 47 44
8 PM 46 43
9 PM 44 43
10 PM 43 43
11 PM 43 44
Weather and Ozone Data Wednesday April 23, 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 54 1.8 SW -0.7 86 1 0.0
1 AM 52 1.6 S -1.2 92 1 0.1
2 AM 52 3.0 SW -1.5 89 1 0.0
3 AM 51 3.6 SW -2.1 86 1 0.0
4 AM 51 5.0 SW -2.7 81 1 0.0
5 AM 49 4.4 SW -3.1 80 1 0.0
6 AM 47 3.6 SW -3.7 83 1 0.0
7 AM 45 2.4 SW -4.0 85 6 0.1
8 AM 51 1.6 W -4.6 82 30 0.1
9 AM 50 2.8 SW -4.5 81 104 0.2
10 AM 51 3.8 SW -3.0 66 542 0.0
11 AM 51 4.1 SW -2.1 54 710 0.0
12 PM 52 4.1 SW -1.9 49 717 0.0
1 PM 53 4.7 SW -1.2 42 762 0.0
2 PM 51 4.3 SW -1.0 39 731 0.0
3 PM 49 4.2 SW -0.5 34 739 0.0
4 PM 48 4.5 SW -0.6 39 613 0.0
5 PM 48 3.3 SW -1.9 58 262 0.3
6 PM 49 2.9 SW -2.2 76 211 0.0
7 PM 47 2.5 SW -2.6 80 100 0.0
8 PM 46 2.6 SW -3.0 77 26 0.0
9 PM 44 3.1 SW -3.4 78 3 0.0
10 PM 43 2.8 SW -3.4 77 1 0.0
11 PM 43 3.0 SW -3.6 77 1 0.0
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updated on 04/24/2014 8:42 PM  I   http://www2.nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster