Air Quality Forecast Guidance

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 45.42 N, longitude: 70.54 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 06/17, 4Z)
37
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
Wed, 16 Jun  06 PM
37
35
Wed, 16 Jun  07 PM
37
36
Wed, 16 Jun   08 PM
37
36
Wed, 16 Jun   09 PM
34
36
Wed, 16 Jun   10 PM
32
36
Wed, 16 Jun   11 PM
28
35
Thu, 17 Jun   12 AM
27
34
Thu, 17 Jun   01 AM
28
32
Thu, 17 Jun   02 AM
28
31
Thu, 17 Jun   03 AM
27
30
Thu, 17 Jun   04 AM
26
29
Thu, 17 Jun   05 AM
26
28
Thu, 17 Jun   06 AM
27
27
Thu, 17 Jun   07 AM
26
27
Thu, 17 Jun   08 AM
26
27
Thu, 17 Jun   09 AM
28
27
Thu, 17 Jun   10 AM
32
27
Thu, 17 Jun   11 AM
33
28
Thu, 17 Jun   12 PM
34
29
Thu, 17 Jun   01 PM
37
30
Thu, 17 Jun   02 PM
38
32
Thu, 17 Jun   03 PM
40
34
Thu, 17 Jun   04 PM
43
36
Thu, 17 Jun   05 PM
44
38
Thu, 17 Jun   06 PM
46
39
Thu, 17 Jun   07 PM
47
41
Thu, 17 Jun   08 PM
48
43
Thu, 17 Jun   09 PM
46
44
Thu, 17 Jun   10 PM
42
44
Thu, 17 Jun   11 PM
38
44
Fri, 18 Jun   12 AM
34
43
Fri, 18 Jun   01 AM
34
42
Fri, 18 Jun   02 AM
34
40
Fri, 18 Jun   03 AM
32
38
Fri, 18 Jun   04 AM
30
36
Fri, 18 Jun   05 AM
30
34
Fri, 18 Jun   06 AM
30
33
Fri, 18 Jun   07 AM
29
32
Fri, 18 Jun   08 AM
28
31
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Wed, 16 Jun  06 PM
0
0
Wed, 16 Jun  07 PM
0
0
Wed, 16 Jun  08 PM
0
0
Wed, 16 Jun  09 PM
0
0
Wed, 16 Jun  10 PM
0
0
Wed, 16 Jun  11 PM
0
0
Thu, 17 Jun  12 AM
0
0
Thu, 17 Jun  01 AM
0
0
Thu, 17 Jun  02 AM
0
0
Thu, 17 Jun  03 AM
0
0
Thu, 17 Jun  04 AM
0
0
Thu, 17 Jun  05 AM
0
0
Thu, 17 Jun  06 AM
0
0
Thu, 17 Jun  07 AM
0
0
Thu, 17 Jun  08 AM
0
0
Thu, 17 Jun  09 AM
0
0
Thu, 17 Jun  10 AM
0
0
Thu, 17 Jun  11 AM
0
0
Thu, 17 Jun  12 PM
0
0
Thu, 17 Jun  01 PM
0
0
Thu, 17 Jun  02 PM
0
0
Thu, 17 Jun  03 PM
0
0
Thu, 17 Jun  04 PM
0
0
Thu, 17 Jun  05 PM
0
0
Thu, 17 Jun  06 PM
0
0
Thu, 17 Jun  07 PM
0
0
Thu, 17 Jun  08 PM
0
0
Thu, 17 Jun  09 PM
0
0
Thu, 17 Jun  10 PM
0
0
Thu, 17 Jun  11 PM
0
0
Fri, 18 Jun  12 AM
0
0
Fri, 18 Jun  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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