Air Quality Forecast Guidance for South Lake Tahoe, CA

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 38.94 N, longitude: 119.99 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 09/21, 4Z)
59
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
Sun, 20 Sep  11 PM
39
49
Mon, 21 Sep  12 AM
39
46
Mon, 21 Sep  01 AM
39
44
Mon, 21 Sep  02 AM
38
42
Mon, 21 Sep  03 AM
37
40
Mon, 21 Sep  04 AM
36
39
Mon, 21 Sep  05 AM
34
38
Mon, 21 Sep  06 AM
23
36
Mon, 21 Sep  07 AM
30
35
Mon, 21 Sep  08 AM
34
34
Mon, 21 Sep  09 AM
32
33
Mon, 21 Sep  10 AM
36
33
Mon, 21 Sep  11 AM
45
34
Mon, 21 Sep  12 PM
52
36
Mon, 21 Sep  01 PM
57
39
Mon, 21 Sep  02 PM
58
43
Mon, 21 Sep  03 PM
60
47
Mon, 21 Sep  04 PM
60
50
Mon, 21 Sep   05 PM
61
54
Mon, 21 Sep   06 PM
63
57
Mon, 21 Sep   07 PM
62
59
Mon, 21 Sep   08 PM
59
60
Mon, 21 Sep   09 PM
56
60
Mon, 21 Sep   10 PM
53
59
Mon, 21 Sep   11 PM
49
58
Tue, 22 Sep   12 AM
50
57
Tue, 22 Sep   01 AM
50
55
Tue, 22 Sep   02 AM
52
54
Tue, 22 Sep   03 AM
53
53
Tue, 22 Sep   04 AM
53
52
Tue, 22 Sep   05 AM
50
51
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Sun, 20 Sep  11 PM
0
5
Mon, 21 Sep  12 AM
0
8
Mon, 21 Sep  01 AM
0
10
Mon, 21 Sep  02 AM
0
14
Mon, 21 Sep  03 AM
0
19
Mon, 21 Sep  04 AM
0
25
Mon, 21 Sep  05 AM
0
17
Mon, 21 Sep  06 AM
10
17
Mon, 21 Sep  07 AM
0
19
Mon, 21 Sep  08 AM
0
18
Mon, 21 Sep  09 AM
0
15
Mon, 21 Sep  10 AM
0
12
Mon, 21 Sep  11 AM
0
8
Mon, 21 Sep  12 PM
19
7
Mon, 21 Sep  01 PM
0
8
Mon, 21 Sep  02 PM
4
7
Mon, 21 Sep  03 PM
10
10
Mon, 21 Sep  04 PM
0
8
Mon, 21 Sep  05 PM
3
6
Mon, 21 Sep  06 PM
0
6
Mon, 21 Sep  07 PM
0
8
Mon, 21 Sep  08 PM
0
9
Mon, 21 Sep  09 PM
6
13
Mon, 21 Sep  10 PM
0
18

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


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