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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 Thursday May 28, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 33 36
1 AM 37 36
2 AM 37 35
3 AM 37 33
4 AM 39 32
5 AM 36 30
6 AM 36 29
7 AM 36 30
8 AM 34 31
9 AM 27 32
10 AM 24 34
11 AM 25 36
12 PM 23 39
1 PM 34 41
2 PM 40 41
3 PM 43 40
4 PM 44 39
5 PM 42 38
6 PM 44 37
7 PM 44 36
8 PM 39 36
9 PM 34 35
10 PM 32 35
11 PM 37 35
Weather and Ozone Data Thursday May 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 33 0.7 W 4.2 91 1 0.0
1 AM 37 1.0 SW 4.6 91 1 0.3
2 AM 37 1.3 S 3.9 95 1 0.2
3 AM 37 1.2 SW 3.2 95 1 0.3
4 AM 39 1.2 SW 3.0 94 1 0.0
5 AM 36 0.8 S 3.2 95 0 0.6
6 AM 36 0.9 SW 2.6 95 2 0.8
7 AM 36 0.8 S 1.9 96 17 1.2
8 AM 34 0.4 S 0.8 96 18 1.7
9 AM 27 0.6 S 0.8 96 20 1.4
10 AM 24 0.7 S 1.3 97 40 0.6
11 AM 25 0.5 NE 2.6 96 78 1.1
12 PM 23 0.6 NE 2.0 96 115 1.6
1 PM 34 1.1 SE 4.4 94 354 0.2
2 PM 40 1.5 SE 5.9 93 298 0.0
3 PM 43 1.2 S 7.4 91 468 0.0
4 PM 44 1.5 SE 7.8 91 249 0.2
5 PM 42 0.8 W 5.3 92 97 0.9
6 PM 44 1.9 NW 5.0 91 189 0.5
7 PM 44 1.3 NW 7.8 87 245 0.0
8 PM 39 0.9 N 7.7 90 87 0.0
9 PM 34 0.8 NE 6.2 94 19 1.0
10 PM 32 0.8 N 5.4 95 1 0.0
11 PM 37 1.2 N 4.7 94 1 0.0
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updated on 05/29/2015 11:46 PM  I   http://www2.nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster