Air Quality Forecast Guidance

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 46.68 N, longitude: 119.44 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 10/16, 4Z)
37
32
*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, 15 Oct  08 PM
26
32
Fri, 15 Oct  09 PM
22
32
Fri, 15 Oct  10 PM
17
30
Fri, 15 Oct  11 PM
14
27
Sat, 16 Oct  12 AM
12
24
Sat, 16 Oct  01 AM
11
21
Sat, 16 Oct  02 AM
12
18
Sat, 16 Oct  03 AM
12
16
Sat, 16 Oct  04 AM
10
14
Sat, 16 Oct  05 AM
8
12
Sat, 16 Oct  06 AM
6
11
Sat, 16 Oct  07 AM
4
9
Sat, 16 Oct  08 AM
5
9
Sat, 16 Oct  09 AM
3
8
Sat, 16 Oct  10 AM
3
6
Sat, 16 Oct  11 AM
12
6
Sat, 16 Oct  12 PM
19
8
Sat, 16 Oct  01 PM
25
10
Sat, 16 Oct  02 PM
30
13
Sat, 16 Oct  03 PM
33
16
Sat, 16 Oct  04 PM
35
20
Sat, 16 Oct   05 PM
35
24
Sat, 16 Oct   06 PM
33
28
Sat, 16 Oct   07 PM
33
30
Sat, 16 Oct   08 PM
29
32
Sat, 16 Oct   09 PM
27
32
Sat, 16 Oct   10 PM
25
31
Sat, 16 Oct   11 PM
25
30
Sun, 17 Oct   12 AM
23
29
Sun, 17 Oct   01 AM
21
27
Sun, 17 Oct   02 AM
19
25
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, 15 Oct  08 PM
0
1
Fri, 15 Oct  09 PM
0
1
Fri, 15 Oct  10 PM
0
2
Fri, 15 Oct  11 PM
30
2
Sat, 16 Oct  12 AM
22
2
Sat, 16 Oct  01 AM
0
3
Sat, 16 Oct  02 AM
61
3
Sat, 16 Oct  03 AM
52
2
Sat, 16 Oct  04 AM
0
2
Sat, 16 Oct  05 AM
0
1
Sat, 16 Oct  06 AM
0
1
Sat, 16 Oct  07 AM
0
0
Sat, 16 Oct  08 AM
1
0
Sat, 16 Oct  09 AM
0
0
Sat, 16 Oct  10 AM
2
2
Sat, 16 Oct  11 AM
4
4
Sat, 16 Oct  12 PM
31
7
Sat, 16 Oct  01 PM
39
10
Sat, 16 Oct  02 PM
11
6
Sat, 16 Oct  03 PM
22
5
Sat, 16 Oct  04 PM
9
4
Sat, 16 Oct  05 PM
4
4
Sat, 16 Oct  06 PM
0
3
Sat, 16 Oct  07 PM
0
2
Sat, 16 Oct  08 PM
0
2
Sat, 16 Oct  09 PM
0
2
Sat, 16 Oct  10 PM
0
1

National Weather Service Air Quality Program Page
Environmental Protection Agency AirNow Forecast Page
Graphical Air Quality Forecast Guidance
FAQ


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