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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 Friday March 27, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 31 30
1 AM 30 29
2 AM 31 29
3 AM 29 28
4 AM 31 29
5 AM 30 30
6 AM 29 32
7 AM 29 33
8 AM 26 35
9 AM 29 37
10 AM 28 38
11 AM 36 40
12 PM 40 41
1 PM 40 42
2 PM 40 43
3 PM 41 43
4 PM 42 44
5 PM 42 44
6 PM 43 44
7 PM 44 43
8 PM 46 43
9 PM 48 42
10 PM 45 41
11 PM 44 40
Weather and Ozone Data Friday March 27, 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 31 1.0 N -0.4 100 0 0.0
1 AM 30 1.1 N -1.0 100 0 0.0
2 AM 31 1.0 N -2.2 -- 0 0.0
3 AM 29 0.9 N -2.6 -- 0 0.0
4 AM 31 0.9 NW -2.6 -- 0 0.0
5 AM 30 1.0 N -2.7 -- 0 0.0
6 AM 29 0.9 N -3.5 -- 0 0.0
7 AM 29 0.9 NW -3.9 -- 0 0.0
8 AM 26 0.7 W -3.9 -- 19 0.0
9 AM 29 1.4 S -0.9 100 87 0.0
10 AM 28 1.3 SE 1.0 92 317 0.0
11 AM 36 1.7 SE 5.9 78 559 0.0
12 PM 40 2.0 SE 9.0 65 687 0.0
1 PM 40 2.0 SE 11.7 56 793 0.0
2 PM 40 2.9 SW 11.8 45 580 0.0
3 PM 41 2.6 SW 12.7 39 752 0.0
4 PM 42 3.2 SW 13.1 35 689 0.0
5 PM 42 3.5 SW 12.6 36 561 0.0
6 PM 43 3.1 SW 13.1 36 397 0.0
7 PM 44 2.2 SW 12.1 40 153 0.0
8 PM 46 1.7 W 7.3 47 10 0.0
9 PM 48 2.4 SW 6.3 52 0 0.0
10 PM 45 1.4 SW 5.0 59 0 0.0
11 PM 44 1.0 N 1.7 77 0 0.0
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updated on 03/28/2015 7:42 AM  I   http://www2.nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster