Air Quality Forecast Guidance for Yosemite Valley, CA

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 37.66 N, longitude: 119.66 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 10/02, 4Z)
41
38
*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, 01 Oct  11 AM
31
35
Sun, 01 Oct  12 PM
31
35
Sun, 01 Oct  01 PM
30
34
Sun, 01 Oct  02 PM
29
33
Sun, 01 Oct  03 PM
29
32
Sun, 01 Oct  04 PM
30
31
Sun, 01 Oct   05 PM
29
30
Sun, 01 Oct   06 PM
29
30
Sun, 01 Oct   07 PM
30
30
Sun, 01 Oct   08 PM
34
30
Sun, 01 Oct   09 PM
39
31
Sun, 01 Oct   10 PM
43
33
Sun, 01 Oct   11 PM
39
34
Mon, 02 Oct   12 AM
34
34
Mon, 02 Oct   01 AM
32
35
Mon, 02 Oct   02 AM
36
36
Mon, 02 Oct   03 AM
38
37
Mon, 02 Oct   04 AM
33
37
Mon, 02 Oct   05 AM
31
36
Mon, 02 Oct   06 AM
28
34
Mon, 02 Oct   07 AM
30
33
Mon, 02 Oct   08 AM
30
32
Mon, 02 Oct   09 AM
32
32
Mon, 02 Oct   10 AM
32
32
Mon, 02 Oct   11 AM
33
31
Mon, 02 Oct   12 PM
34
31
Mon, 02 Oct   01 PM
34
32
Mon, 02 Oct   02 PM
33
32
Mon, 02 Oct   03 PM
37
33
Mon, 02 Oct   04 PM
40
34
Mon, 02 Oct   05 PM
40
35
Mon, 02 Oct   06 PM
47
37
Mon, 02 Oct   07 PM
48
39
Mon, 02 Oct   08 PM
48
41
Mon, 02 Oct   09 PM
47
42
Mon, 02 Oct   10 PM
48
44
Mon, 02 Oct   11 PM
46
45
Tue, 03 Oct   12 AM
44
46
Tue, 03 Oct   01 AM
44
47
Tue, 03 Oct   02 AM
42
46
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, 01 Oct  11 AM
0
0
Sun, 01 Oct  12 PM
0
0
Sun, 01 Oct  01 PM
0
0
Sun, 01 Oct  02 PM
0
0
Sun, 01 Oct  03 PM
0
0
Sun, 01 Oct  04 PM
0
0
Sun, 01 Oct  05 PM
0
0
Sun, 01 Oct  06 PM
0
0
Sun, 01 Oct  07 PM
0
0
Sun, 01 Oct  08 PM
0
0
Sun, 01 Oct  09 PM
0
0
Sun, 01 Oct  10 PM
0
0
Sun, 01 Oct  11 PM
0
0
Mon, 02 Oct  12 AM
0
0
Mon, 02 Oct  01 AM
0
0
Mon, 02 Oct  02 AM
0
0
Mon, 02 Oct  03 AM
0
0
Mon, 02 Oct  04 AM
0
0
Mon, 02 Oct  05 AM
0
0
Mon, 02 Oct  06 AM
0
0
Mon, 02 Oct  07 AM
0
0
Mon, 02 Oct  08 AM
0
0
Mon, 02 Oct  09 AM
0
0
Mon, 02 Oct  10 AM
0
0
Mon, 02 Oct  11 AM
0
0
Mon, 02 Oct  12 PM
0
0
Mon, 02 Oct  01 PM
0
0
Mon, 02 Oct  02 PM
0
0
Mon, 02 Oct  03 PM
0
0
Mon, 02 Oct  04 PM
0
0
Mon, 02 Oct  05 PM
0
0
Mon, 02 Oct  06 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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