NPS: Nature & Science» Air Resources Division–Current Ozone and Weather Data in National Parks

Current Ozone and Weather Data in National Parks

Today's Data	Data Timelines	Ozone Health Advisory

Ozone Tuesday May 21, 2013
Hour Ending (Local Time)	1-Hour Average (parts per billion)	8-Hour Average (parts per billion)
12 AM	27	27
1 AM	22	28
2 AM	23	30
3 AM	30	32
4 AM	29	32
5 AM	32	32
6 AM	29	33
7 AM	28	34
8 AM	38	35
9 AM	38	34
10 AM	33	34
11 AM	31	34
12 PM	34	33
1 PM	37	31
2 PM	36	29
3 PM	35	27
4 PM	34	25
5 PM	32	23
6 PM	--	21
7 PM	25	21
8 PM	23	21
9 PM	23	--
10 PM	23	--
11 PM	21	--

Weather and Ozone Data Tuesday May 21, 2013
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	27	0.5	SW	11.1	82	0	0.0
1 AM	22	0.4	SW	10.5	87	0	0.0
2 AM	23	0.5	SW	10.0	86	0	0.0
3 AM	30	0.9	S	9.0	85	0	0.0
4 AM	29	0.8	SW	8.2	91	0	0.0
5 AM	32	0.7	SW	6.8	94	0	2.1
6 AM	29	0.5	SW	6.4	95	1	1.9
7 AM	28	0.6	W	6.4	95	9	1.1
8 AM	38	0.7	N	5.9	95	30	0.5
9 AM	38	0.7	N	5.9	95	75	0.0
10 AM	33	0.6	N	6.7	95	141	0.0
11 AM	31	0.8	NW	7.2	95	165	0.0
12 PM	34	0.8	W	7.7	94	294	1.3
1 PM	37	0.8	SW	8.1	92	388	1.3
2 PM	36	1.0	SW	9.4	86	529	0.8
3 PM	35	0.9	E	7.8	92	235	2.6
4 PM	34	1.1	E	8.7	90	325	0.2
5 PM	32	1.2	SW	8.7	91	301	0.0
6 PM	--	0.9	SW	7.2	93	65	0.7
7 PM	25	0.7	SW	6.9	95	40	0.1
8 PM	23	0.7	S	6.6	95	29	0.1
9 PM	23	0.5	W	6.0	95	3	0.5
10 PM	23	0.6	W	5.4	95	0	1.3
11 PM	21	0.5	NE	5.1	95	0	0.4

U.S. Department of the Interior	Accessibility	Freedom of Information Act	USA.gov	Search
Privacy Policy	Disclaimer	NPS Home	Contact Us