Air Quality Forecast Guidance for Ann Arbor, MI

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 42.28 N, longitude: 83.73 W.
Ozone concentrations are presented in parts per billion (PPB).
Public comments and suggestions are encouraged.

A FAQ page is available.
More information...
24Hr Maximum
Ending
Maximum 1 Hour Average Ozone
Concentration (PPB)*
Maximum 8 Hour Average Ozone
Concentration (PPB)*
Tomorrow
(Ending 05/26, 4Z)
45
43
*Due to grid interpolation methods, the maximum 1- and 8-hour ozone concentration values may have
values slightly higher or lower than those of the corresponding hourly ozone concentrations.

Ozone
Ending Time
1 Hour Average Ozone
Concentration (PPB)

6Z Model Run
8 Hour Average Ozone
Concentration (PPB)

6Z Model Run
Mon, 25 May  10 AM
23
23
Mon, 25 May  11 AM
33
24
Mon, 25 May  12 PM
41
26
Mon, 25 May  01 PM
43
28
Mon, 25 May  02 PM
43
31
Mon, 25 May  03 PM
43
34
Mon, 25 May  04 PM
43
36
Mon, 25 May  05 PM
44
39
Mon, 25 May  06 PM
45
42
Mon, 25 May  07 PM
44
43
Mon, 25 May   08 PM
43
43
Mon, 25 May   09 PM
42
43
Mon, 25 May   10 PM
41
43
Mon, 25 May   11 PM
40
43
Tue, 26 May   12 AM
38
42
Tue, 26 May   01 AM
37
41
Tue, 26 May   02 AM
36
40
Tue, 26 May   03 AM
34
39
Tue, 26 May   04 AM
33
38
Tue, 26 May   05 AM
32
36
Tue, 26 May   06 AM
31
35
Tue, 26 May   07 AM
30
34
Tue, 26 May   08 AM
28
33
Tue, 26 May   09 AM
28
32
Tue, 26 May   10 AM
29
31
Tue, 26 May   11 AM
30
30
Tue, 26 May   12 PM
34
30
Tue, 26 May   01 PM
40
31
Tue, 26 May   02 PM
44
33
Tue, 26 May   03 PM
46
35
Tue, 26 May   04 PM
47
37
Tue, 26 May   05 PM
47
40
Tue, 26 May   06 PM
46
42
Tue, 26 May   07 PM
42
43
Tue, 26 May   08 PM
38
44
Tue, 26 May   09 PM
34
43
Tue, 26 May   10 PM
32
41
Tue, 26 May   11 PM
31
40
Wed, 27 May   12 AM
31
38
Wed, 27 May   01 AM
34
36
Wed, 27 May   02 AM
35
35
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Mon, 25 May  09 AM
1
0
Mon, 25 May  10 AM
0
0
Mon, 25 May  11 AM
0
0
Mon, 25 May  12 PM
0
0
Mon, 25 May  01 PM
0
0
Mon, 25 May  02 PM
0
0
Mon, 25 May  03 PM
0
0
Mon, 25 May  04 PM
0
0
Mon, 25 May  05 PM
0
0
Mon, 25 May  06 PM
0
0
Mon, 25 May  07 PM
0
0
Mon, 25 May  08 PM
0
0
Mon, 25 May  09 PM
0
0
Mon, 25 May  10 PM
0
0
Mon, 25 May  11 PM
0
0
Tue, 26 May  12 AM
0
0
Tue, 26 May  01 AM
0
0
Tue, 26 May  02 AM
0
0
Tue, 26 May  03 AM
0
0
Tue, 26 May  04 AM
1
0
Tue, 26 May  05 AM
1
0
Tue, 26 May  06 AM
1
0
Tue, 26 May  07 AM
4
0
Tue, 26 May  08 AM
1
0
Tue, 26 May  09 AM
0
0
Tue, 26 May  10 AM
0
0
Tue, 26 May  11 AM
0
0
Tue, 26 May  12 PM
0
0
Tue, 26 May  01 PM
0
0
Tue, 26 May  02 PM
1
0
Tue, 26 May  03 PM
0
0
Tue, 26 May  04 PM
0
0
Tue, 26 May  05 PM
0
0
Tue, 26 May  06 PM
0
0
Tue, 26 May  07 PM
0
0
Tue, 26 May  08 PM
0
0
Tue, 26 May  09 PM
0
0
Tue, 26 May  10 PM
0
0
Tue, 26 May  11 PM
0
0
Wed, 27 May  12 AM
0
0
Wed, 27 May  01 AM
0
0

National Weather Service Air Quality Program Page
Environmental Protection Agency AirNow Forecast Page
Graphical Air Quality Forecast Guidance
FAQ


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