Air Quality Forecast Guidance

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 36.56 N, longitude: 118.29 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 09/22, 4Z)
56
53
*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
Tue, 22 Sep  01 AM
45
49
Tue, 22 Sep  02 AM
43
47
Tue, 22 Sep  03 AM
41
46
Tue, 22 Sep  04 AM
41
45
Tue, 22 Sep  05 AM
41
44
Tue, 22 Sep  06 AM
41
43
Tue, 22 Sep  07 AM
39
42
Tue, 22 Sep  08 AM
37
41
Tue, 22 Sep  09 AM
41
40
Tue, 22 Sep  10 AM
46
41
Tue, 22 Sep  11 AM
48
42
Tue, 22 Sep  12 PM
51
43
Tue, 22 Sep  01 PM
55
45
Tue, 22 Sep  02 PM
58
47
Tue, 22 Sep  03 PM
59
49
Tue, 22 Sep  04 PM
59
52
Tue, 22 Sep   05 PM
58
54
Tue, 22 Sep   06 PM
56
55
Tue, 22 Sep   07 PM
53
56
Tue, 22 Sep   08 PM
44
55
Tue, 22 Sep   09 PM
44
54
Tue, 22 Sep   10 PM
46
52
Tue, 22 Sep   11 PM
48
51
Wed, 23 Sep   12 AM
48
50
Wed, 23 Sep   01 AM
46
48
Wed, 23 Sep   02 AM
44
47
Wed, 23 Sep   03 AM
44
46
Wed, 23 Sep   04 AM
42
45
Wed, 23 Sep   05 AM
41
45
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Tue, 22 Sep  01 AM
1242
32
Tue, 22 Sep  02 AM
1047
28
Tue, 22 Sep  03 AM
1406
39
Tue, 22 Sep  04 AM
1629
81
Tue, 22 Sep  05 AM
1730
134
Tue, 22 Sep  06 AM
1148
120
Tue, 22 Sep  07 AM
752
114
Tue, 22 Sep  08 AM
560
125
Tue, 22 Sep  09 AM
441
143
Tue, 22 Sep  10 AM
400
189
Tue, 22 Sep  11 AM
287
345
Tue, 22 Sep  12 PM
228
485
Tue, 22 Sep  01 PM
106
396
Tue, 22 Sep  02 PM
28
244
Tue, 22 Sep  03 PM
4
175
Tue, 22 Sep  04 PM
0
136
Tue, 22 Sep  05 PM
0
112
Tue, 22 Sep  06 PM
0
71
Tue, 22 Sep  07 PM
0
34
Tue, 22 Sep  08 PM
0
11
Tue, 22 Sep  09 PM
0
6
Tue, 22 Sep  10 PM
0
2

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


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