Air Quality Forecast Guidance

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 48.72 N, longitude: 120.67 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 04/06, 4Z)
40
39
*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
Sun, 05 Apr  07 AM
25
27
Sun, 05 Apr  08 AM
24
27
Sun, 05 Apr  09 AM
32
27
Sun, 05 Apr  10 AM
36
28
Sun, 05 Apr  11 AM
37
30
Sun, 05 Apr  12 PM
38
31
Sun, 05 Apr  01 PM
38
32
Sun, 05 Apr  02 PM
39
34
Sun, 05 Apr  03 PM
38
35
Sun, 05 Apr  04 PM
39
37
Sun, 05 Apr   05 PM
39
38
Sun, 05 Apr   06 PM
40
38
Sun, 05 Apr   07 PM
40
39
Sun, 05 Apr   08 PM
40
39
Sun, 05 Apr   09 PM
38
39
Sun, 05 Apr   10 PM
34
39
Sun, 05 Apr   11 PM
34
38
Mon, 06 Apr   12 AM
33
37
Mon, 06 Apr   01 AM
32
36
Mon, 06 Apr   02 AM
33
36
Mon, 06 Apr   03 AM
32
35
Mon, 06 Apr   04 AM
33
34
Mon, 06 Apr   05 AM
33
33
Mon, 06 Apr   06 AM
32
33
Mon, 06 Apr   07 AM
33
33
Mon, 06 Apr   08 AM
33
33
Mon, 06 Apr   09 AM
35
33
Mon, 06 Apr   10 AM
34
33
Mon, 06 Apr   11 AM
36
34
Mon, 06 Apr   12 PM
38
34
Mon, 06 Apr   01 PM
38
35
Mon, 06 Apr   02 PM
40
36
Mon, 06 Apr   03 PM
42
37
Mon, 06 Apr   04 PM
43
38
Mon, 06 Apr   05 PM
42
39
Mon, 06 Apr   06 PM
41
40
Mon, 06 Apr   07 PM
43
41
Mon, 06 Apr   08 PM
45
42
Mon, 06 Apr   09 PM
45
43
Mon, 06 Apr   10 PM
41
43
Mon, 06 Apr   11 PM
41
42
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Sun, 05 Apr  04 AM
0
0
Sun, 05 Apr  05 AM
0
0
Sun, 05 Apr  06 AM
0
0
Sun, 05 Apr  07 AM
0
0
Sun, 05 Apr  08 AM
0
0
Sun, 05 Apr  09 AM
0
0
Sun, 05 Apr  10 AM
0
0
Sun, 05 Apr  11 AM
0
0
Sun, 05 Apr  12 PM
0
0
Sun, 05 Apr  01 PM
0
0
Sun, 05 Apr  02 PM
0
0
Sun, 05 Apr  03 PM
0
0
Sun, 05 Apr  04 PM
0
0
Sun, 05 Apr  05 PM
0
0
Sun, 05 Apr  06 PM
0
0
Sun, 05 Apr  07 PM
0
0
Sun, 05 Apr  08 PM
0
0
Sun, 05 Apr  09 PM
0
0
Sun, 05 Apr  10 PM
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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