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 08/04, 4Z)
41
36
*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
Mon, 03 Aug  06 PM
34
35
Mon, 03 Aug  07 PM
29
36
Mon, 03 Aug  08 PM
23
35
Mon, 03 Aug  09 PM
19
33
Mon, 03 Aug  10 PM
16
30
Mon, 03 Aug  11 PM
13
26
Tue, 04 Aug  12 AM
11
23
Tue, 04 Aug  01 AM
11
20
Tue, 04 Aug  02 AM
11
17
Tue, 04 Aug  03 AM
11
15
Tue, 04 Aug  04 AM
11
13
Tue, 04 Aug  05 AM
10
12
Tue, 04 Aug  06 AM
8
11
Tue, 04 Aug  07 AM
7
10
Tue, 04 Aug  08 AM
12
10
Tue, 04 Aug  09 AM
18
11
Tue, 04 Aug  10 AM
21
12
Tue, 04 Aug  11 AM
25
14
Tue, 04 Aug  12 PM
30
16
Tue, 04 Aug  01 PM
34
19
Tue, 04 Aug  02 PM
36
23
Tue, 04 Aug  03 PM
38
27
Tue, 04 Aug  04 PM
38
30
Tue, 04 Aug   05 PM
36
32
Tue, 04 Aug   06 PM
34
34
Tue, 04 Aug   07 PM
32
35
Tue, 04 Aug   08 PM
30
35
Tue, 04 Aug   09 PM
24
34
Tue, 04 Aug   10 PM
18
31
Tue, 04 Aug   11 PM
14
28
Wed, 05 Aug   12 AM
12
25
Wed, 05 Aug   01 AM
12
22
Wed, 05 Aug   02 AM
12
19
Wed, 05 Aug   03 AM
12
17
Wed, 05 Aug   04 AM
12
14
Wed, 05 Aug   05 AM
11
13
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Mon, 03 Aug  06 PM
0
3
Mon, 03 Aug  07 PM
0
3
Mon, 03 Aug  08 PM
0
3
Mon, 03 Aug  09 PM
0
3
Mon, 03 Aug  10 PM
0
3
Mon, 03 Aug  11 PM
0
2
Tue, 04 Aug  12 AM
0
1
Tue, 04 Aug  01 AM
0
0
Tue, 04 Aug  02 AM
0
0
Tue, 04 Aug  03 AM
0
0
Tue, 04 Aug  04 AM
0
0
Tue, 04 Aug  05 AM
0
0
Tue, 04 Aug  06 AM
0
0
Tue, 04 Aug  07 AM
0
0
Tue, 04 Aug  08 AM
0
0
Tue, 04 Aug  09 AM
0
0
Tue, 04 Aug  10 AM
0
0
Tue, 04 Aug  11 AM
0
0
Tue, 04 Aug  12 PM
0
0
Tue, 04 Aug  01 PM
0
0
Tue, 04 Aug  02 PM
0
0
Tue, 04 Aug  03 PM
0
0
Tue, 04 Aug  04 PM
0
0
Tue, 04 Aug  05 PM
0
0
Tue, 04 Aug  06 PM
0
0
Tue, 04 Aug  07 PM
0
0
Tue, 04 Aug  08 PM
0
0
Tue, 04 Aug  09 PM
0
0
Tue, 04 Aug  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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