Air Quality Forecast Guidance

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 45.91 N, longitude: 114.41 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 10/25, 4Z)
34
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
Sat, 24 Oct  02 PM
29
23
Sat, 24 Oct  03 PM
31
23
Sat, 24 Oct  04 PM
30
25
Sat, 24 Oct  05 PM
31
26
Sat, 24 Oct   06 PM
31
28
Sat, 24 Oct   07 PM
31
29
Sat, 24 Oct   08 PM
30
30
Sat, 24 Oct   09 PM
28
30
Sat, 24 Oct   10 PM
26
30
Sat, 24 Oct   11 PM
21
28
Sun, 25 Oct   12 AM
21
27
Sun, 25 Oct   01 AM
19
26
Sun, 25 Oct   02 AM
16
24
Sun, 25 Oct   03 AM
17
22
Sun, 25 Oct   04 AM
16
20
Sun, 25 Oct   05 AM
18
19
Sun, 25 Oct   06 AM
16
18
Sun, 25 Oct   07 AM
14
17
Sun, 25 Oct   08 AM
12
16
Sun, 25 Oct   09 AM
13
15
Sun, 25 Oct   10 AM
14
15
Sun, 25 Oct   11 AM
20
15
Sun, 25 Oct   12 PM
27
17
Sun, 25 Oct   01 PM
28
18
Sun, 25 Oct   02 PM
30
20
Sun, 25 Oct   03 PM
31
22
Sun, 25 Oct   04 PM
31
24
Sun, 25 Oct   05 PM
31
26
Sun, 25 Oct   06 PM
31
29
Sun, 25 Oct   07 PM
31
30
Sun, 25 Oct   08 PM
28
30
Sun, 25 Oct   09 PM
28
30
Sun, 25 Oct   10 PM
26
29
Sun, 25 Oct   11 PM
24
29
Mon, 26 Oct   12 AM
26
28
Mon, 26 Oct   01 AM
24
27
Mon, 26 Oct   02 AM
22
26
Mon, 26 Oct   03 AM
24
25
Mon, 26 Oct   04 AM
25
25
Mon, 26 Oct   05 AM
26
25
Mon, 26 Oct   06 AM
26
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
Sat, 24 Oct  12 PM
0
3
Sat, 24 Oct  01 PM
0
2
Sat, 24 Oct  02 PM
0
1
Sat, 24 Oct  03 PM
0
1
Sat, 24 Oct  04 PM
0
0
Sat, 24 Oct  05 PM
0
0
Sat, 24 Oct  06 PM
0
0
Sat, 24 Oct  07 PM
0
1
Sat, 24 Oct  08 PM
0
1
Sat, 24 Oct  09 PM
0
1
Sat, 24 Oct  10 PM
0
1
Sat, 24 Oct  11 PM
0
0
Sun, 25 Oct  12 AM
0
0
Sun, 25 Oct  01 AM
0
2
Sun, 25 Oct  02 AM
0
1
Sun, 25 Oct  03 AM
0
2
Sun, 25 Oct  04 AM
0
1
Sun, 25 Oct  05 AM
0
1
Sun, 25 Oct  06 AM
0
1
Sun, 25 Oct  07 AM
0
1
Sun, 25 Oct  08 AM
0
2
Sun, 25 Oct  09 AM
0
2
Sun, 25 Oct  10 AM
0
1
Sun, 25 Oct  11 AM
0
0
Sun, 25 Oct  12 PM
0
0
Sun, 25 Oct  01 PM
0
0
Sun, 25 Oct  02 PM
0
0
Sun, 25 Oct  03 PM
0
0
Sun, 25 Oct  04 PM
0
0
Sun, 25 Oct  05 PM
0
0
Sun, 25 Oct  06 PM
0
0
Sun, 25 Oct  07 PM
0
0
Sun, 25 Oct  08 PM
0
0
Sun, 25 Oct  09 PM
0
0
Sun, 25 Oct  10 PM
0
0
Sun, 25 Oct  11 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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