Air Quality Forecast Guidance for Salem, OR

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 44.94 N, longitude: 123.03 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
Fri, 26 May  05 PM
37
27
Fri, 26 May  06 PM
38
30
Fri, 26 May  07 PM
31
31
Fri, 26 May  08 PM
23
32
Fri, 26 May  09 PM
19
31
Fri, 26 May  10 PM
18
29
Fri, 26 May  11 PM
18
27
Sat, 27 May  12 AM
18
25
Sat, 27 May  01 AM
19
23
Sat, 27 May  02 AM
19
21
Sat, 27 May  03 AM
18
19
Sat, 27 May  04 AM
17
18
Sat, 27 May  05 AM
17
18
Sat, 27 May  06 AM
16
18
Sat, 27 May  07 AM
14
17
Sat, 27 May  08 AM
13
17
Sat, 27 May  09 AM
17
16
Sat, 27 May  10 AM
21
17
Sat, 27 May  11 AM
27
18
Sat, 27 May  12 PM
32
20
Sat, 27 May  01 PM
35
22
Sat, 27 May  02 PM
37
24
Sat, 27 May  03 PM
38
28
Sat, 27 May  04 PM
39
31
Sat, 27 May   05 PM
40
34
Sat, 27 May   06 PM
39
36
Sat, 27 May   07 PM
30
36
Sat, 27 May   08 PM
28
36
Sat, 27 May   09 PM
28
35
Sat, 27 May   10 PM
26
34
Sat, 27 May   11 PM
23
32
Sun, 28 May   12 AM
21
30
Sun, 28 May   01 AM
21
27
Sun, 28 May   02 AM
22
Sun, 28 May   03 AM
22
Sun, 28 May   04 AM
22
Sun, 28 May   05 AM
22
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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