Air Quality Forecast Guidance

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 46.74 N, longitude: 115.41 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 07/31, 4Z)
55
50
*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, 30 Jul  11 PM
33
45
Sat, 31 Jul  12 AM
32
43
Sat, 31 Jul  01 AM
33
40
Sat, 31 Jul  02 AM
34
38
Sat, 31 Jul  03 AM
33
36
Sat, 31 Jul  04 AM
19
32
Sat, 31 Jul  05 AM
31
31
Sat, 31 Jul  06 AM
28
30
Sat, 31 Jul  07 AM
27
30
Sat, 31 Jul  08 AM
33
30
Sat, 31 Jul  09 AM
39
30
Sat, 31 Jul  10 AM
41
31
Sat, 31 Jul  11 AM
42
32
Sat, 31 Jul  12 PM
46
36
Sat, 31 Jul  01 PM
50
38
Sat, 31 Jul  02 PM
51
41
Sat, 31 Jul  03 PM
51
44
Sat, 31 Jul  04 PM
52
46
Sat, 31 Jul   05 PM
49
48
Sat, 31 Jul   06 PM
45
48
Sat, 31 Jul   07 PM
43
48
Sat, 31 Jul   08 PM
37
47
Sat, 31 Jul   09 PM
33
45
Sat, 31 Jul   10 PM
31
42
Sat, 31 Jul   11 PM
29
40
Sun, 01 Aug   12 AM
27
37
Sun, 01 Aug   01 AM
26
34
Sun, 01 Aug   02 AM
25
31
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, 30 Jul  11 PM
0
6
Sat, 31 Jul  12 AM
0
8
Sat, 31 Jul  01 AM
0
10
Sat, 31 Jul  02 AM
0
11
Sat, 31 Jul  03 AM
11
19
Sat, 31 Jul  04 AM
21
28
Sat, 31 Jul  05 AM
70
31
Sat, 31 Jul  06 AM
141
29
Sat, 31 Jul  07 AM
127
29
Sat, 31 Jul  08 AM
196
33
Sat, 31 Jul  09 AM
184
33
Sat, 31 Jul  10 AM
137
29
Sat, 31 Jul  11 AM
61
23
Sat, 31 Jul  12 PM
64
27
Sat, 31 Jul  01 PM
30
25
Sat, 31 Jul  02 PM
17
14
Sat, 31 Jul  03 PM
5
9
Sat, 31 Jul  04 PM
12
13
Sat, 31 Jul  05 PM
24
25
Sat, 31 Jul  06 PM
40
32
Sat, 31 Jul  07 PM
34
36
Sat, 31 Jul  08 PM
12
29
Sat, 31 Jul  09 PM
6
26
Sat, 31 Jul  10 PM
4
17

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


    US Dept of Commerce
    National Oceanic and Atmospheric Administration
    National Weather Service
    1325 East West Highway
    Silver Spring, MD 20910
    Page Author: NWS Internet Services Team
Disclaimer
Information Quality
Credits
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities