Air Quality Forecast Guidance

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 34.52 N, longitude: 116.88 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 06/19, 4Z)
70
66
*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, 18 Jun  02 PM
66
55
Fri, 18 Jun  03 PM
66
58
Fri, 18 Jun  04 PM
69
61
Fri, 18 Jun   05 PM
68
63
Fri, 18 Jun   06 PM
67
65
Fri, 18 Jun   07 PM
64
66
Fri, 18 Jun   08 PM
59
65
Fri, 18 Jun   09 PM
57
65
Fri, 18 Jun   10 PM
58
64
Fri, 18 Jun   11 PM
50
62
Sat, 19 Jun   12 AM
46
59
Sat, 19 Jun   01 AM
44
56
Sat, 19 Jun   02 AM
39
52
Sat, 19 Jun   03 AM
36
49
Sat, 19 Jun   04 AM
37
46
Sat, 19 Jun   05 AM
39
44
Sat, 19 Jun   06 AM
40
41
Sat, 19 Jun   07 AM
43
41
Sat, 19 Jun   08 AM
46
41
Sat, 19 Jun   09 AM
51
42
Sat, 19 Jun   10 AM
59
44
Sat, 19 Jun   11 AM
64
47
Sat, 19 Jun   12 PM
63
51
Sat, 19 Jun   01 PM
65
54
Sat, 19 Jun   02 PM
62
57
Sat, 19 Jun   03 PM
60
59
Sat, 19 Jun   04 PM
61
61
Sat, 19 Jun   05 PM
67
63
Sat, 19 Jun   06 PM
72
64
Sat, 19 Jun   07 PM
75
66
Sat, 19 Jun   08 PM
70
66
Sat, 19 Jun   09 PM
62
66
Sat, 19 Jun   10 PM
64
66
Sat, 19 Jun   11 PM
60
66
Sun, 20 Jun   12 AM
51
65
Sun, 20 Jun   01 AM
44
62
Sun, 20 Jun   02 AM
38
58
Sun, 20 Jun   03 AM
33
53
Sun, 20 Jun   04 AM
31
48
Sun, 20 Jun   05 AM
27
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
Fri, 18 Jun  02 PM
0
2
Fri, 18 Jun  03 PM
0
1
Fri, 18 Jun  04 PM
0
1
Fri, 18 Jun  05 PM
0
1
Fri, 18 Jun  06 PM
0
1
Fri, 18 Jun  07 PM
0
2
Fri, 18 Jun  08 PM
0
1
Fri, 18 Jun  09 PM
0
2
Fri, 18 Jun  10 PM
0
3
Fri, 18 Jun  11 PM
0
2
Sat, 19 Jun  12 AM
0
1
Sat, 19 Jun  01 AM
0
3
Sat, 19 Jun  02 AM
0
2
Sat, 19 Jun  03 AM
0
5
Sat, 19 Jun  04 AM
0
7
Sat, 19 Jun  05 AM
0
7
Sat, 19 Jun  06 AM
0
7
Sat, 19 Jun  07 AM
0
5
Sat, 19 Jun  08 AM
0
7
Sat, 19 Jun  09 AM
0
8
Sat, 19 Jun  10 AM
0
9
Sat, 19 Jun  11 AM
0
7
Sat, 19 Jun  12 PM
0
8
Sat, 19 Jun  01 PM
0
9
Sat, 19 Jun  02 PM
0
9
Sat, 19 Jun  03 PM
0
9
Sat, 19 Jun  04 PM
0
6
Sat, 19 Jun  05 PM
0
9
Sat, 19 Jun  06 PM
0
7
Sat, 19 Jun  07 PM
0
6
Sat, 19 Jun  08 PM
0
10
Sat, 19 Jun  09 PM
0
10
Sat, 19 Jun  10 PM
0
8

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


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