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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 18, 2014 
Hour Ending
(Local Time)
1-Hour Average
(parts per billion)
8-Hour Average
(parts per billion)
12 AM 57 53
1 AM 57 53
2 AM 57 --
3 AM 56 --
4 AM 53 --
5 AM 49 --
6 AM 48 --
Weather and Ozone Data Friday April 18, 2014
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 57 1.6 SW 2.5 48 1 0.0
1 AM 57 1.1 W 1.5 53 1 0.0
2 AM 57 0.9 NW 1.2 55 1 0.0
3 AM 56 1.7 SW 2.1 52 1 0.0
4 AM 53 2.4 S 1.8 65 1 0.0
5 AM 49 1.8 S 0.7 92 1 0.7
6 AM 48 1.4 S 0.1 96 1 1.7
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updated on 04/18/2014 6:42 AM  I   http://www.nature.nps.gov/air/data/current/data_YELL-WT.cfm   I  Email: Webmaster