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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 Monday March 27, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 48 47
1 AM 49 47
2 AM 49 47
3 AM 49 47
4 AM 48 46
5 AM 47 46
6 AM 47 47
7 AM 46 47
8 AM 45 47
9 AM 47 48
10 AM 47 48
11 AM 47 48
12 PM -- 48
1 PM 50 48
2 PM 50 49
3 PM 49 50
4 PM 48 50
5 PM 48 50
6 PM 48 50
7 PM 49 49
8 PM 48 49
9 PM 56 48
10 PM 55 46
11 PM 53 44
Weather and Ozone Data Monday March 27, 2017
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 48 1.0 S -2.4 88 -- 0.0
1 AM 49 1.2 S -2.6 91 -- 0.1
2 AM 49 1.4 S -2.8 92 -- 0.3
3 AM 49 1.0 S -2.8 92 -- 0.6
4 AM 48 1.0 S -2.7 92 -- 0.1
5 AM 47 0.6 SE -2.7 92 -- 0.0
6 AM 47 0.6 S -2.6 92 -- 0.0
7 AM 46 1.0 S -2.5 92 -- 0.0
8 AM 45 0.7 S -2.4 92 2 0.2
9 AM 47 0.9 S -2.3 92 18 0.4
10 AM 47 1.0 S -2.1 90 27 0.0
11 AM 47 1.4 S -0.9 87 57 0.1
12 PM -- -- -- -- -- -- --
1 PM 50 2.2 S 1.3 73 316 0.0
2 PM 50 1.8 S 1.5 72 337 0.1
3 PM 49 1.0 SE 1.3 74 203 0.0
4 PM 48 0.8 E 0.8 80 141 1.6
5 PM 48 0.9 S 0.4 81 129 0.0
6 PM 48 1.2 S -0.1 86 78 0.0
7 PM 49 0.8 S -1.0 91 23 0.2
8 PM 48 0.9 SW -1.5 92 2 0.2
9 PM 56 1.6 NW -1.9 89 -- 1.2
10 PM 55 1.3 N -2.0 90 -- 0.7
11 PM 53 0.8 NE -2.1 89 -- 0.0
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updated on 03/28/2017 7:41 AM  I   http://www.nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster