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 04/17, 4Z)
35
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)

12Z Model Run
8 Hour Average Ozone
Concentration (PPB)

12Z Model Run
Thu, 17 Apr  02 AM
21
21
Thu, 17 Apr  03 AM
21
20
Thu, 17 Apr  04 AM
20
19
Thu, 17 Apr  05 AM
18
19
Thu, 17 Apr  06 AM
16
19
Thu, 17 Apr  07 AM
12
18
Thu, 17 Apr  08 AM
12
17
Thu, 17 Apr  09 AM
14
17
Thu, 17 Apr  10 AM
18
16
Thu, 17 Apr  11 AM
21
16
Thu, 17 Apr  12 PM
22
16
Thu, 17 Apr  01 PM
24
17
Thu, 17 Apr  02 PM
29
19
Thu, 17 Apr  03 PM
29
21
Thu, 17 Apr  04 PM
29
23
Thu, 17 Apr   05 PM
30
25
Thu, 17 Apr   06 PM
31
27
Thu, 17 Apr   07 PM
29
28
Thu, 17 Apr   08 PM
29
29
Thu, 17 Apr   09 PM
30
30
Thu, 17 Apr   10 PM
32
30
Thu, 17 Apr   11 PM
36
31
Fri, 18 Apr   12 AM
35
32
Fri, 18 Apr   01 AM
34
32
Fri, 18 Apr   02 AM
34
32
Fri, 18 Apr   03 AM
34
33
Fri, 18 Apr   04 AM
33
34
Fri, 18 Apr   05 AM
31
34
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Thu, 17 Apr  02 AM
0
0
Thu, 17 Apr  03 AM
0
0
Thu, 17 Apr  04 AM
0
0
Thu, 17 Apr  05 AM
0
0
Thu, 17 Apr  06 AM
0
0
Thu, 17 Apr  07 AM
0
0
Thu, 17 Apr  08 AM
0
0
Thu, 17 Apr  09 AM
0
0
Thu, 17 Apr  10 AM
0
0
Thu, 17 Apr  11 AM
0
0
Thu, 17 Apr  12 PM
0
0
Thu, 17 Apr  01 PM
0
0
Thu, 17 Apr  02 PM
0
0
Thu, 17 Apr  03 PM
0
0
Thu, 17 Apr  04 PM
0
0
Thu, 17 Apr  05 PM
0
0
Thu, 17 Apr  06 PM
0
0
Thu, 17 Apr  07 PM
0
0
Thu, 17 Apr  08 PM
0
0
Thu, 17 Apr  09 PM
0
0
Thu, 17 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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