Air Quality Forecast Guidance for Yosemite Valley, CA

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 37.81 N, longitude: 119.57 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 12/08, 4Z)
45
44
*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)

6Z Model Run
8 Hour Average Ozone
Concentration (PPB)

6Z Model Run
Tue, 07 Dec  06 AM
40
41
Tue, 07 Dec  07 AM
38
41
Tue, 07 Dec  08 AM
39
40
Tue, 07 Dec  09 AM
38
40
Tue, 07 Dec  10 AM
37
39
Tue, 07 Dec  11 AM
37
39
Tue, 07 Dec  12 PM
36
38
Tue, 07 Dec  01 PM
37
38
Tue, 07 Dec  02 PM
37
37
Tue, 07 Dec  03 PM
37
37
Tue, 07 Dec   04 PM
38
37
Tue, 07 Dec   05 PM
38
37
Tue, 07 Dec   06 PM
43
38
Tue, 07 Dec   07 PM
45
39
Tue, 07 Dec   08 PM
45
40
Tue, 07 Dec   09 PM
44
41
Tue, 07 Dec   10 PM
43
42
Tue, 07 Dec   11 PM
44
43
Wed, 08 Dec   12 AM
43
43
Wed, 08 Dec   01 AM
44
44
Wed, 08 Dec   02 AM
44
44
Wed, 08 Dec   03 AM
44
44
Wed, 08 Dec   04 AM
44
44
Wed, 08 Dec   05 AM
43
44
Wed, 08 Dec   06 AM
43
44
Wed, 08 Dec   07 AM
42
44
Wed, 08 Dec   08 AM
41
43
Wed, 08 Dec   09 AM
39
43
Wed, 08 Dec   10 AM
36
42
Wed, 08 Dec   11 AM
36
41
Wed, 08 Dec   12 PM
34
39
Wed, 08 Dec   01 PM
34
38
Wed, 08 Dec   02 PM
34
37
Wed, 08 Dec   03 PM
34
36
Wed, 08 Dec   04 PM
36
35
Wed, 08 Dec   05 PM
39
36
Wed, 08 Dec   06 PM
43
36
Wed, 08 Dec   07 PM
43
37
Wed, 08 Dec   08 PM
43
38
Wed, 08 Dec   09 PM
42
39
Wed, 08 Dec   10 PM
42
40
Wed, 08 Dec   11 PM
43
42
Thu, 09 Dec   12 AM
44
43
Thu, 09 Dec   01 AM
44
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
Tue, 07 Dec  05 AM
0
0
Tue, 07 Dec  06 AM
0
0
Tue, 07 Dec  07 AM
0
0
Tue, 07 Dec  08 AM
0
0
Tue, 07 Dec  09 AM
0
0
Tue, 07 Dec  10 AM
0
0
Tue, 07 Dec  11 AM
0
0
Tue, 07 Dec  12 PM
0
0
Tue, 07 Dec  01 PM
0
0
Tue, 07 Dec  02 PM
0
0
Tue, 07 Dec  03 PM
0
0
Tue, 07 Dec  04 PM
0
0
Tue, 07 Dec  05 PM
0
0
Tue, 07 Dec  06 PM
0
0
Tue, 07 Dec  07 PM
0
0
Tue, 07 Dec  08 PM
0
0
Tue, 07 Dec  09 PM
0
0
Tue, 07 Dec  10 PM
0
0
Tue, 07 Dec  11 PM
0
0
Wed, 08 Dec  12 AM
0
0
Wed, 08 Dec  01 AM
0
0
Wed, 08 Dec  02 AM
0
0
Wed, 08 Dec  03 AM
0
0
Wed, 08 Dec  04 AM
0
0
Wed, 08 Dec  05 AM
0
0
Wed, 08 Dec  06 AM
0
0
Wed, 08 Dec  07 AM
0
0
Wed, 08 Dec  08 AM
0
0
Wed, 08 Dec  09 AM
0
0
Wed, 08 Dec  10 AM
0
0
Wed, 08 Dec  11 AM
0
0
Wed, 08 Dec  12 PM
0
0
Wed, 08 Dec  01 PM
0
0
Wed, 08 Dec  02 PM
0
0
Wed, 08 Dec  03 PM
0
0
Wed, 08 Dec  04 PM
0
0
Wed, 08 Dec  05 PM
0
0
Wed, 08 Dec  06 PM
0
0
Wed, 08 Dec  07 PM
0
0
Wed, 08 Dec  08 PM
0
0
Wed, 08 Dec  09 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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