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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 Wednesday January 18, 2017 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 44 42
1 AM 45 41
2 AM 43 40
3 AM 42 39
4 AM 40 39
5 AM 41 39
6 AM 40 38
7 AM 41 --
8 AM 41 --
9 AM 36 --
10 AM 38 --
11 AM 36 --
12 PM -- --
1 PM -- --
2 PM -- 49
3 PM -- 49
4 PM 49 49
5 PM 49 49
6 PM 51 49
7 PM 50 48
8 PM 50 46
9 PM 50 45
10 PM 48 45
11 PM 47 46
Weather and Ozone Data Wednesday January 18, 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 44 0.7 N -12.9 84 0 0.0
1 AM 45 0.4 NW -12.8 85 0 0.0
2 AM 43 0.6 W -14.3 85 -- 0.0
3 AM 42 0.4 W -13.3 86 -- 0.0
4 AM 40 0.4 NE -15.7 85 0 0.0
5 AM 41 0.6 N -15.6 84 0 0.0
6 AM 40 0.4 N -16.2 83 0 0.0
7 AM 41 0.4 N -15.5 84 0 0.0
8 AM 41 0.3 N -15.5 84 0 0.0
9 AM 36 0.3 SE -15.6 83 6 0.0
10 AM 38 0.5 SE -12.1 82 25 0.0
11 AM 36 0.7 SE -11.2 74 37 --
12 PM -- -- -- -- -- -- --
1 PM -- 0.7 SE -7.7 68 38 0.0
2 PM -- 0.5 SE -5.6 63 35 0.0
3 PM -- 0.8 SE -3.0 56 93 0.0
4 PM 49 0.6 S -3.3 56 38 0.0
5 PM 49 0.6 SW -4.0 66 13 0.0
6 PM 51 0.6 W -5.5 74 0 0.0
7 PM 50 0.6 NW -5.6 77 0 0.0
8 PM 50 0.8 NW -7.4 81 0 0.0
9 PM 50 0.6 W -7.9 79 0 0.0
10 PM 48 0.6 N -8.8 82 -- 0.0
11 PM 47 0.7 NW -8.2 82 -- 0.0
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updated on 01/19/2017 11:41 PM  I   http://www.nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster