Air Quality Forecast Guidance

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 31.48 N, longitude: 111.44 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 05/31, 4Z)
47
46
*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, 30 May   01 PM
45
39
Sat, 30 May   02 PM
47
41
Sat, 30 May   03 PM
46
43
Sat, 30 May   04 PM
46
44
Sun, 31 May  12 AM
34
42
Sun, 31 May  01 AM
32
40
Sun, 31 May  02 AM
30
38
Sun, 31 May  03 AM
28
36
Sun, 31 May  04 AM
27
33
Sun, 31 May  05 AM
26
31
Sun, 31 May  06 AM
25
30
Sun, 31 May  07 AM
27
29
Sun, 31 May  08 AM
32
28
Sun, 31 May  09 AM
36
29
Sun, 31 May  10 AM
38
30
Sun, 31 May  11 AM
40
31
Sun, 31 May  12 PM
42
33
Sun, 31 May  01 PM
43
35
Sun, 31 May  02 PM
45
38
Sun, 31 May  03 PM
45
40
Sun, 31 May  04 PM
45
42
Sun, 31 May   05 PM
45
43
Sun, 31 May   06 PM
47
44
Sun, 31 May   07 PM
51
45
Sun, 31 May   08 PM
49
46
Sun, 31 May   09 PM
45
46
Sun, 31 May   10 PM
37
46
Sun, 31 May   11 PM
34
44
Mon, 01 Jun   12 AM
35
43
Mon, 01 Jun   01 AM
35
42
Mon, 01 Jun   02 AM
33
40
Mon, 01 Jun   03 AM
32
37
Mon, 01 Jun   04 AM
32
35
Mon, 01 Jun   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
Sat, 30 May  12 AM
0
1
Sat, 30 May  01 AM
0
1
Sat, 30 May  02 AM
0
1
Sat, 30 May  03 AM
0
0
Sat, 30 May  04 AM
0
1
Sat, 30 May  05 AM
0
2
Sat, 30 May  06 AM
0
3
Sat, 30 May  07 AM
0
1
Sat, 30 May  08 AM
0
1
Sat, 30 May  09 AM
0
0
Sat, 30 May  10 AM
0
1
Sat, 30 May  11 AM
0
1
Sat, 30 May  12 PM
0
1
Sat, 30 May  01 PM
0
2
Sat, 30 May  02 PM
0
3
Sat, 30 May  03 PM
0
5
Sat, 30 May  04 PM
0
3
Sun, 31 May  12 AM
0
1
Sun, 31 May  01 AM
0
2
Sun, 31 May  02 AM
0
2
Sun, 31 May  03 AM
0
1
Sun, 31 May  04 AM
0
1
Sun, 31 May  05 AM
0
3
Sun, 31 May  06 AM
0
1
Sun, 31 May  07 AM
0
2
Sun, 31 May  08 AM
0
2
Sun, 31 May  09 AM
0
1
Sun, 31 May  10 AM
0
1
Sun, 31 May  11 AM
0
1
Sun, 31 May  12 PM
0
0
Sun, 31 May  01 PM
0
0
Sun, 31 May  02 PM
0
1
Sun, 31 May  03 PM
0
1
Sun, 31 May  04 PM
0
0
Sun, 31 May  05 PM
0
0
Sun, 31 May  06 PM
0
1
Sun, 31 May  07 PM
0
1
Sun, 31 May  08 PM
0
1
Sun, 31 May  09 PM
0
1
Sun, 31 May  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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