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 09/05, 4Z)
36
35
*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
Fri, 04 Sep  07 AM
11
15
Fri, 04 Sep  08 AM
12
14
Fri, 04 Sep  09 AM
26
15
Fri, 04 Sep  10 AM
32
18
Fri, 04 Sep  11 AM
34
20
Fri, 04 Sep  12 PM
36
22
Fri, 04 Sep  01 PM
36
25
Fri, 04 Sep  02 PM
36
28
Fri, 04 Sep  03 PM
35
31
Fri, 04 Sep  04 PM
34
34
Fri, 04 Sep   05 PM
33
35
Fri, 04 Sep   06 PM
32
34
Fri, 04 Sep   07 PM
31
34
Fri, 04 Sep   08 PM
30
33
Fri, 04 Sep   09 PM
29
32
Fri, 04 Sep   10 PM
26
31
Fri, 04 Sep   11 PM
23
30
Sat, 05 Sep   12 AM
24
28
Sat, 05 Sep   01 AM
26
28
Sat, 05 Sep   02 AM
28
27
Sat, 05 Sep   03 AM
28
27
Sat, 05 Sep   04 AM
28
27
Sat, 05 Sep   05 AM
26
26
Sat, 05 Sep   06 AM
24
26
Sat, 05 Sep   07 AM
23
26
Sat, 05 Sep   08 AM
24
26
Sat, 05 Sep   09 AM
30
26
Sat, 05 Sep   10 AM
34
27
Sat, 05 Sep   11 AM
35
28
Sat, 05 Sep   12 PM
35
29
Sat, 05 Sep   01 PM
33
30
Sat, 05 Sep   02 PM
32
31
Sat, 05 Sep   03 PM
32
32
Sat, 05 Sep   04 PM
30
33
Sat, 05 Sep   05 PM
29
33
Sat, 05 Sep   06 PM
28
32
Sat, 05 Sep   07 PM
26
31
Sat, 05 Sep   08 PM
22
29
Sat, 05 Sep   09 PM
17
27
Sat, 05 Sep   10 PM
14
25
Sat, 05 Sep   11 PM
13
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
Fri, 04 Sep  05 AM
0
0
Fri, 04 Sep  06 AM
0
0
Fri, 04 Sep  07 AM
0
0
Fri, 04 Sep  08 AM
0
0
Fri, 04 Sep  09 AM
0
0
Fri, 04 Sep  10 AM
0
0
Fri, 04 Sep  11 AM
0
0
Fri, 04 Sep  12 PM
0
0
Fri, 04 Sep  01 PM
0
0
Fri, 04 Sep  02 PM
0
0
Fri, 04 Sep  03 PM
0
0
Fri, 04 Sep  04 PM
0
0
Fri, 04 Sep  05 PM
0
0
Fri, 04 Sep  06 PM
0
0
Fri, 04 Sep  07 PM
0
0
Fri, 04 Sep  08 PM
0
0
Fri, 04 Sep  09 PM
0
0
Fri, 04 Sep  10 PM
0
0
Fri, 04 Sep  11 PM
0
0
Sat, 05 Sep  12 AM
0
0
Sat, 05 Sep  01 AM
0
0
Sat, 05 Sep  02 AM
0
0
Sat, 05 Sep  03 AM
0
0
Sat, 05 Sep  04 AM
0
0
Sat, 05 Sep  05 AM
0
0
Sat, 05 Sep  06 AM
0
0
Sat, 05 Sep  07 AM
0
1
Sat, 05 Sep  08 AM
0
1
Sat, 05 Sep  09 AM
0
1
Sat, 05 Sep  10 AM
0
1
Sat, 05 Sep  11 AM
0
1
Sat, 05 Sep  12 PM
0
1
Sat, 05 Sep  01 PM
0
0
Sat, 05 Sep  02 PM
0
0
Sat, 05 Sep  03 PM
0
1
Sat, 05 Sep  04 PM
0
1
Sat, 05 Sep  05 PM
0
1
Sat, 05 Sep  06 PM
0
1
Sat, 05 Sep  07 PM
0
1
Sat, 05 Sep  08 PM
0
0
Sat, 05 Sep  09 PM
0
0
Sat, 05 Sep  10 PM
0
0

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Environmental Protection Agency AirNow Forecast Page
Graphical Air Quality Forecast Guidance
FAQ


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