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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 Thursday April 17, 2014 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 55 53
1 AM 55 53
2 AM 52 53
3 AM 50 53
4 AM 52 54
5 AM 54 55
6 AM 56 55
7 AM 55 55
8 AM 52 55
9 AM 53 56
10 AM 56 56
11 AM 57 57
12 PM 58 56
1 PM 58 56
2 PM 57 56
3 PM 56 56
4 PM 56 56
5 PM 57 56
6 PM 57 56
7 PM 56 56
8 PM 57 56
9 PM 56 55
10 PM 55 55
11 PM 56 54
Weather and Ozone Data Thursday April 17, 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 55 0.8 NW -2.1 57 1 0.0
1 AM 55 0.7 NW -2.6 58 1 0.0
2 AM 52 0.6 W -2.9 61 1 0.0
3 AM 50 0.6 NE -3.4 62 1 0.0
4 AM 52 0.6 NW -3.5 61 1 0.0
5 AM 54 0.8 NW -4.0 58 1 0.0
6 AM 56 1.0 NW -4.9 59 1 0.0
7 AM 55 0.6 NW -5.6 62 6 0.0
8 AM 52 0.7 SE -5.8 64 56 0.0
9 AM 53 1.3 SE -3.5 55 328 0.0
10 AM 56 1.6 S -1.7 47 510 0.0
11 AM 57 1.9 SE -0.6 44 679 0.0
12 PM 58 3.1 S 3.3 38 803 0.0
1 PM 58 3.8 S 4.6 35 846 0.0
2 PM 57 3.8 S 5.9 32 885 0.0
3 PM 56 3.6 S 5.7 35 615 0.0
4 PM 56 3.8 SW 7.2 33 713 0.0
5 PM 57 3.7 SW 7.3 34 604 0.0
6 PM 57 3.0 S 6.5 38 252 0.0
7 PM 56 2.2 S 5.6 42 88 0.0
8 PM 57 1.6 SW 5.0 44 47 0.0
9 PM 56 1.8 SW 3.7 46 2 0.0
10 PM 55 1.3 SW 3.1 46 1 0.0
11 PM 56 1.7 SW 2.5 49 1 0.0
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updated on 04/18/2014 7:42 AM  I   http://www2.nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster