Air Quality Forecast Guidance

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 47.68 N, longitude: 93.43 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 /, 4Z)
0
41
*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
Sat, 26 May  10 AM
30
21
Sat, 26 May  11 AM
37
22
Sat, 26 May  12 PM
42
25
Sat, 26 May  01 PM
44
28
Sat, 26 May  02 PM
43
31
Sat, 26 May  03 PM
40
34
Sat, 26 May  04 PM
39
37
Sat, 26 May  05 PM
40
39
Sat, 26 May  06 PM
41
41
Sat, 26 May   07 PM
40
41
Sat, 26 May   08 PM
36
40
Sat, 26 May   09 PM
33
39
Sat, 26 May   10 PM
31
37
Sat, 26 May   11 PM
29
36
Sun, 27 May   12 AM
26
34
Sun, 27 May   01 AM
23
32
Sun, 27 May   02 AM
21
30
Sun, 27 May   03 AM
19
27
Sun, 27 May   04 AM
18
25
Sun, 27 May   05 AM
17
23
Sun, 27 May   06 AM
17
21
Sun, 27 May   07 AM
16
19
Sun, 27 May   08 AM
19
19
Sun, 27 May   09 AM
25
19
Sun, 27 May   10 AM
30
20
Sun, 27 May   11 AM
32
22
Sun, 27 May   12 PM
32
23
Sun, 27 May   01 PM
32
25
Sun, 27 May   02 PM
32
27
Sun, 27 May   03 PM
31
29
Sun, 27 May   04 PM
31
31
Sun, 27 May   05 PM
37
32
Sun, 27 May   06 PM
45
34
Sun, 27 May   07 PM
43
35
Sun, 27 May   08 PM
37
36
Sun, 27 May   09 PM
31
36
Sun, 27 May   10 PM
27
35
Sun, 27 May   11 PM
27
35
Mon, 28 May   12 AM
26
34
Mon, 28 May   01 AM
22
32
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run

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


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