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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 Friday April 24, 2015 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM -- --
1 AM -- --
2 AM -- --
3 AM -- --
4 AM -- --
5 AM -- --
6 AM -- --
7 AM -- --
8 AM -- --
9 AM -- --
10 AM -- --
11 AM -- --
12 PM -- --
1 PM -- --
2 PM -- --
3 PM -- --
4 PM -- --
5 PM -- --
6 PM -- --
7 PM -- --
8 PM -- --
9 PM -- --
Weather and Ozone Data Friday April 24, 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 -- 1.2 N 0.0 -- 0 --
1 AM -- 1.2 N -1.7 -- 0 --
2 AM -- 1.3 NW 0.0 -- 0 --
3 AM -- 1.1 W -2.5 -- 0 --
4 AM -- 1.2 W 0.0 -- 0 --
5 AM -- 0.9 W -2.7 -- 1 --
6 AM -- 0.7 W -2.7 -- 0 --
7 AM -- 0.8 W -2.7 -- 12 --
8 AM -- 1.3 SW -1.6 -- 55 --
9 AM -- 1.6 S 1.7 -- 326 --
10 AM -- 1.6 SE 5.4 -- 494 --
11 AM -- 2.2 SE 6.9 -- 589 --
12 PM -- 2.6 S 9.6 -- 659 --
1 PM -- 2.6 SE 9.9 -- 568 --
2 PM -- 3.3 S 10.0 -- 662 --
3 PM -- 3.2 S 10.6 -- 558 --
4 PM -- 2.9 SW 8.9 -- 345 --
5 PM -- 2.8 SW 4.0 -- 169 --
6 PM -- 1.9 S 5.2 -- 113 --
7 PM -- 1.6 SW 3.0 -- 22 --
8 PM -- 1.6 SW 0.7 -- 5 --
9 PM -- 1.3 S 0.7 -- 1 --
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updated on 04/24/2015 9:44 PM  I   http://www.nature.nps.gov/air/data/current/data_YELL-WT.cfm   I  Email: Webmaster