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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 Saturday March 28, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 42 39
1 AM 41 38
2 AM 40 37
3 AM 39 37
4 AM 39 37
5 AM 39 37
6 AM 38 38
7 AM 36 40
8 AM 36 42
9 AM 33 44
10 AM 36 48
11 AM 39 51
12 PM 44 54
1 PM 47 55
2 PM 51 57
3 PM 51 57
4 PM 52 57
5 PM 65 57
6 PM 64 55
7 PM 58 54
8 PM 58 53
9 PM 57 51
10 PM 53 50
11 PM 52 49
Weather and Ozone Data Saturday March 28, 2015
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 42 1.1 NW 0.3 83 0 0.0
1 AM 41 1.0 NW 0.3 84 0 0.0
2 AM 40 1.2 NW -0.3 88 0 0.0
3 AM 39 1.0 NW -0.8 91 0 0.0
4 AM 39 0.9 NW -1.1 93 0 0.0
5 AM 39 0.8 W -1.3 91 0 0.0
6 AM 38 0.7 W -1.3 93 0 0.0
7 AM 36 0.9 NW -2.0 97 0 0.0
8 AM 36 0.8 SW -1.6 93 31 0.0
9 AM 33 1.6 S 1.5 81 188 0.0
10 AM 36 2.1 SE 6.2 62 392 0.0
11 AM 39 4.1 S 9.8 44 552 0.0
12 PM 44 5.9 SW 10.5 37 543 0.0
1 PM 47 7.3 SW 9.7 37 779 0.0
2 PM 51 6.8 SW 8.9 40 478 0.0
3 PM 51 5.8 SW 6.9 54 317 0.0
4 PM 52 3.3 SW 6.6 52 60 0.0
5 PM 65 4.6 SW 8.7 28 572 0.0
6 PM 64 4.4 SW 8.8 23 408 0.0
7 PM 58 3.0 W 6.5 30 160 0.0
8 PM 58 2.1 NW 2.8 33 16 0.0
9 PM 57 1.4 W 1.1 37 0 0.0
10 PM 53 1.2 E -1.0 46 0 0.0
11 PM 52 1.3 SW -2.5 49 0 0.0
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updated on 03/29/2015 1:41 PM  I   http://nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster