Air Quality Forecast Guidance

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 31.93 N, longitude: 109.30 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)
58
55
*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
53
49
Sat, 30 May   02 PM
54
50
Sat, 30 May   03 PM
58
52
Sat, 30 May   04 PM
57
53
Sun, 31 May  01 AM
45
45
Sun, 31 May  02 AM
50
45
Sun, 31 May  03 AM
48
44
Sun, 31 May  04 AM
48
45
Sun, 31 May  05 AM
49
45
Sun, 31 May  06 AM
48
46
Sun, 31 May  07 AM
44
47
Sun, 31 May  08 AM
43
47
Sun, 31 May  09 AM
51
48
Sun, 31 May  10 AM
50
48
Sun, 31 May  11 AM
52
48
Sun, 31 May  12 PM
54
49
Sun, 31 May  01 PM
54
49
Sun, 31 May  02 PM
53
50
Sun, 31 May  03 PM
55
52
Sun, 31 May  04 PM
55
53
Sun, 31 May   05 PM
53
53
Sun, 31 May   06 PM
52
54
Sun, 31 May   07 PM
48
53
Sun, 31 May   08 PM
50
53
Sun, 31 May   09 PM
48
52
Sun, 31 May   10 PM
45
51
Sun, 31 May   11 PM
44
50
Mon, 01 Jun   12 AM
45
48
Mon, 01 Jun   01 AM
47
48
Mon, 01 Jun   02 AM
48
47
Mon, 01 Jun   03 AM
46
47
Mon, 01 Jun   04 AM
40
45
Mon, 01 Jun   05 AM
31
43
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
0
Sat, 30 May  01 AM
0
0
Sat, 30 May  02 AM
0
0
Sat, 30 May  03 AM
0
0
Sat, 30 May  04 AM
0
0
Sat, 30 May  05 AM
0
0
Sat, 30 May  06 AM
0
0
Sat, 30 May  07 AM
0
0
Sat, 30 May  08 AM
0
0
Sat, 30 May  09 AM
0
0
Sat, 30 May  10 AM
0
0
Sat, 30 May  11 AM
0
0
Sat, 30 May  12 PM
0
0
Sat, 30 May  01 PM
0
0
Sat, 30 May  02 PM
0
0
Sat, 30 May  03 PM
0
0
Sat, 30 May  04 PM
0
0
Sun, 31 May  01 AM
0
0
Sun, 31 May  02 AM
0
0
Sun, 31 May  03 AM
0
0
Sun, 31 May  04 AM
0
0
Sun, 31 May  05 AM
0
0
Sun, 31 May  06 AM
0
0
Sun, 31 May  07 AM
0
0
Sun, 31 May  08 AM
0
0
Sun, 31 May  09 AM
0
0
Sun, 31 May  10 AM
0
0
Sun, 31 May  11 AM
0
0
Sun, 31 May  12 PM
0
0
Sun, 31 May  01 PM
0
0
Sun, 31 May  02 PM
0
0
Sun, 31 May  03 PM
0
0
Sun, 31 May  04 PM
0
0
Sun, 31 May  05 PM
0
0
Sun, 31 May  06 PM
0
0
Sun, 31 May  07 PM
0
0
Sun, 31 May  08 PM
0
0
Sun, 31 May  09 PM
0
0
Sun, 31 May  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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