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 10/01, 4Z)
41
36
*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)

12Z Model Run
8 Hour Average Ozone
Concentration (PPB)

12Z Model Run
Tue, 30 Sep  04 PM
35
34
Tue, 30 Sep  05 PM
36
35
Tue, 30 Sep  06 PM
35
35
Tue, 30 Sep  07 PM
34
35
Tue, 30 Sep   08 PM
32
35
Tue, 30 Sep   09 PM
32
34
Tue, 30 Sep   10 PM
30
34
Tue, 30 Sep   11 PM
28
33
Wed, 01 Oct   12 AM
29
32
Wed, 01 Oct   01 AM
30
31
Wed, 01 Oct   02 AM
30
30
Wed, 01 Oct   03 AM
30
30
Wed, 01 Oct   04 AM
33
30
Wed, 01 Oct   05 AM
30
30
Wed, 01 Oct   06 AM
26
29
Wed, 01 Oct   07 AM
20
28
Wed, 01 Oct   08 AM
15
27
Wed, 01 Oct   09 AM
15
25
Wed, 01 Oct   10 AM
15
23
Wed, 01 Oct   11 AM
24
22
Wed, 01 Oct   12 PM
31
22
Wed, 01 Oct   01 PM
30
22
Wed, 01 Oct   02 PM
30
23
Wed, 01 Oct   03 PM
31
24
Wed, 01 Oct   04 PM
36
27
Wed, 01 Oct   05 PM
42
30
Wed, 01 Oct   06 PM
42
33
Wed, 01 Oct   07 PM
32
34
Wed, 01 Oct   08 PM
16
32
Wed, 01 Oct   09 PM
10
30
Wed, 01 Oct   10 PM
10
28
Wed, 01 Oct   11 PM
17
26
Thu, 02 Oct   12 AM
28
25
Thu, 02 Oct   01 AM
38
24
Thu, 02 Oct   02 AM
44
24
Thu, 02 Oct   03 AM
48
26
Thu, 02 Oct   04 AM
46
30
Thu, 02 Oct   05 AM
44
34
Thu, 02 Oct   06 AM
47
39
Thu, 02 Oct   07 AM
46
42
Thu, 02 Oct   08 AM
43
44
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Tue, 30 Sep  02 PM
0
0
Tue, 30 Sep  03 PM
0
0
Tue, 30 Sep  04 PM
0
0
Tue, 30 Sep  05 PM
0
0
Tue, 30 Sep  06 PM
0
0
Tue, 30 Sep  07 PM
0
0
Tue, 30 Sep  08 PM
0
0
Tue, 30 Sep  09 PM
0
0
Tue, 30 Sep  10 PM
0
0
Tue, 30 Sep  11 PM
0
0
Wed, 01 Oct  12 AM
0
0
Wed, 01 Oct  01 AM
0
0
Wed, 01 Oct  02 AM
0
0
Wed, 01 Oct  03 AM
0
0
Wed, 01 Oct  04 AM
0
0
Wed, 01 Oct  05 AM
0
0
Wed, 01 Oct  06 AM
0
0
Wed, 01 Oct  07 AM
0
0
Wed, 01 Oct  08 AM
0
0
Wed, 01 Oct  09 AM
0
0
Wed, 01 Oct  10 AM
0
0
Wed, 01 Oct  11 AM
0
0
Wed, 01 Oct  12 PM
0
0
Wed, 01 Oct  01 PM
0
0
Wed, 01 Oct  02 PM
0
0
Wed, 01 Oct  03 PM
0
0
Wed, 01 Oct  04 PM
0
0
Wed, 01 Oct  05 PM
0
0
Wed, 01 Oct  06 PM
0
0
Wed, 01 Oct  07 PM
0
0
Wed, 01 Oct  08 PM
0
0
Wed, 01 Oct  09 PM
0
0
Wed, 01 Oct  10 PM
0
0
Wed, 01 Oct  11 PM
0
0
Thu, 02 Oct  12 AM
0
0
Thu, 02 Oct  01 AM
0
0

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


    US Dept of Commerce
    National Oceanic and Atmospheric Administration
    National Weather Service
    1325 East West Highway
    Silver Spring, MD 20910
    Page Author: NWS Internet Services Team
Disclaimer
Information Quality
Credits
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities