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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


Yesterday's Data   Data Timelines   Ozone Health Advisory  


Ozone Thursday February 22, 2018 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 44 43
1 AM -- 43
2 AM 44 43
3 AM 44 43
4 AM 44 43
5 AM 43 43
6 AM 44 43
7 AM 44 44
8 AM 44 44
9 AM 42 44
10 AM 40 45
11 AM 45 46
12 PM 46 46
1 PM 46 46
2 PM 46 --
3 PM 47 --
4 PM 47 --
5 PM 47 --
6 PM 46 --
Weather and Ozone Data Thursday February 22, 2018
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 44 0.7 NW -20.5 82 -- 0.0
1 AM -- 0.8 NW -21.2 81 -- 0.0
2 AM 44 0.8 W -20.4 82 -- 0.0
3 AM 44 0.7 NW -19.9 82 -- 0.0
4 AM 44 0.4 NW -20.2 81 -- 0.0
5 AM 43 0.5 N -21.0 81 -- 0.0
6 AM 44 0.7 NW -21.8 81 -- 0.0
7 AM 44 0.5 SW -20.8 81 -- 0.0
8 AM 44 0.6 SW -20.4 81 -- 0.0
9 AM 42 0.5 SE -18.6 81 11 0.0
10 AM 40 1.0 SE -17.4 74 29 0.0
11 AM 45 1.3 S -15.0 60 42 0.0
12 PM 46 1.4 S -13.0 54 42 0.0
1 PM 46 1.9 S -11.5 51 49 0.0
2 PM 46 1.5 SE -11.1 52 44 0.0
3 PM 47 1.3 S -11.1 53 19 0.0
4 PM 47 1.3 S -11.1 58 16 0.0
5 PM 47 1.0 SE -11.5 61 10 0.0
6 PM 46 0.6 SE -12.3 68 0 0.0
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updated on 02/22/2018 6:44 PM  I   http://www.nature.nps.gov/air/data/current/Data_YELL-WT.cfm   I  Email: Webmaster