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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 Saturday April 25, 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 -- --
10 PM -- --
11 PM -- --
Weather and Ozone Data Saturday April 25, 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 -- 1.3 SW 1.0 -- 0 --
1 AM -- 1.1 SW 0.7 -- 0 --
2 AM -- 0.9 S 0.6 -- 0 --
3 AM -- 0.3 SW 0.0 -- 0 --
4 AM -- 0.3 SW -0.3 -- 0 --
5 AM -- 0.3 S -0.7 -- 0 --
6 AM -- 0.3 S -1.1 -- 0 --
7 AM -- 0.3 SW 0.0 -- 4 --
8 AM -- 0.3 S -1.3 -- 15 --
9 AM -- 0.3 SW -1.1 -- 41 --
10 AM -- 0.3 SW -0.7 -- 42 --
11 AM -- 0.3 SW -0.6 -- 54 --
12 PM -- 0.8 SW -0.1 -- 89 --
1 PM -- 2.1 SW 0.6 -- 103 --
2 PM -- 2.3 S 1.5 -- 196 --
3 PM -- 2.8 S 3.8 -- 595 --
4 PM -- 3.0 SW 4.9 -- 716 --
5 PM -- 2.6 SW 5.7 -- 663 --
6 PM -- 2.3 SW 6.4 -- 408 --
7 PM -- 1.4 SE 4.8 -- 120 --
8 PM -- 0.6 E 0.0 -- 58 --
9 PM -- 0.7 N 1.4 -- 3 --
10 PM -- 0.6 N 0.6 -- 0 --
11 PM -- 0.8 N 1.2 -- 0 --
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updated on 04/26/2015 3:44 PM  I   http://www.nature.nps.gov/air/data/current/data_YELL-WT2.cfm   I  Email: Webmaster