Air Quality Forecast Guidance

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 48.95 N, longitude: 121.64 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
0
*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
Sat, 02 Jul  05 PM
41
0
Sat, 02 Jul  06 PM
44
0
Sat, 02 Jul  07 PM
41
0
Sat, 02 Jul  08 PM
37
0
Sat, 02 Jul  09 PM
38
0
Sat, 02 Jul  10 PM
33
0
Sat, 02 Jul  11 PM
29
0
Sun, 03 Jul  12 AM
27
0
Sun, 03 Jul  01 AM
27
0
Sun, 03 Jul  02 AM
24
0
Sun, 03 Jul  03 AM
22
0
Sun, 03 Jul  04 AM
23
0
Sun, 03 Jul  05 AM
24
0
Sun, 03 Jul  06 AM
26
0
Sun, 03 Jul  07 AM
35
0
Sun, 03 Jul  08 AM
37
0
Sun, 03 Jul  09 AM
34
0
Sun, 03 Jul  10 AM
33
0
Sun, 03 Jul  11 AM
33
0
Sun, 03 Jul  12 PM
34
0
Sun, 03 Jul  01 PM
31
0
Sun, 03 Jul  02 PM
25
0
Sun, 03 Jul  03 PM
19
0
Sun, 03 Jul  04 PM
15
0
Sun, 03 Jul   05 PM
13
Sun, 03 Jul   06 PM
12
Sun, 03 Jul   07 PM
10
Sun, 03 Jul   08 PM
11
Sun, 03 Jul   09 PM
14
Sun, 03 Jul   10 PM
13
Sun, 03 Jul   11 PM
11
Mon, 04 Jul   12 AM
10
Mon, 04 Jul   01 AM
10
Mon, 04 Jul   02 AM
10
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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