Air Quality Forecast Guidance for Yosemite Valley, CA

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 37.74 N, longitude: 119.60 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 08/27, 4Z)
57
54
*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
Fri, 26 Aug  07 AM
38
36
Fri, 26 Aug  08 AM
40
36
Fri, 26 Aug  09 AM
43
37
Fri, 26 Aug  10 AM
45
38
Fri, 26 Aug  11 AM
46
39
Fri, 26 Aug  12 PM
46
41
Fri, 26 Aug  01 PM
48
42
Fri, 26 Aug  02 PM
49
44
Fri, 26 Aug  03 PM
51
46
Fri, 26 Aug  04 PM
53
48
Fri, 26 Aug   05 PM
55
49
Fri, 26 Aug   06 PM
57
51
Fri, 26 Aug   07 PM
57
52
Fri, 26 Aug   08 PM
56
53
Fri, 26 Aug   09 PM
54
54
Fri, 26 Aug   10 PM
51
54
Fri, 26 Aug   11 PM
47
54
Sat, 27 Aug   12 AM
44
53
Sat, 27 Aug   01 AM
44
51
Sat, 27 Aug   02 AM
45
50
Sat, 27 Aug   03 AM
45
48
Sat, 27 Aug   04 AM
46
47
Sat, 27 Aug   05 AM
47
46
Sat, 27 Aug   06 AM
48
46
Sat, 27 Aug   07 AM
49
46
Sat, 27 Aug   08 AM
49
47
Sat, 27 Aug   09 AM
50
48
Sat, 27 Aug   10 AM
51
48
Sat, 27 Aug   11 AM
51
49
Sat, 27 Aug   12 PM
50
50
Sat, 27 Aug   01 PM
49
50
Sat, 27 Aug   02 PM
48
50
Sat, 27 Aug   03 PM
50
50
Sat, 27 Aug   04 PM
54
50
Sat, 27 Aug   05 PM
56
51
Sat, 27 Aug   06 PM
57
52
Sat, 27 Aug   07 PM
57
52
Sat, 27 Aug   08 PM
56
53
Sat, 27 Aug   09 PM
53
54
Sat, 27 Aug   10 PM
50
54
Sat, 27 Aug   11 PM
47
54
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, 26 Aug  04 AM
0
1
Fri, 26 Aug  05 AM
0
1
Fri, 26 Aug  06 AM
0
1
Fri, 26 Aug  07 AM
0
0
Fri, 26 Aug  08 AM
0
0
Fri, 26 Aug  09 AM
0
0
Fri, 26 Aug  10 AM
0
0
Fri, 26 Aug  11 AM
0
0
Fri, 26 Aug  12 PM
0
0
Fri, 26 Aug  01 PM
0
0
Fri, 26 Aug  02 PM
0
0
Fri, 26 Aug  03 PM
0
0
Fri, 26 Aug  04 PM
0
0
Fri, 26 Aug  05 PM
0
0
Fri, 26 Aug  06 PM
0
0
Fri, 26 Aug  07 PM
0
0
Fri, 26 Aug  08 PM
0
0
Fri, 26 Aug  09 PM
0
0
Fri, 26 Aug  10 PM
0
0
Fri, 26 Aug  11 PM
0
0
Sat, 27 Aug  12 AM
0
0
Sat, 27 Aug  01 AM
0
0
Sat, 27 Aug  02 AM
0
0
Sat, 27 Aug  03 AM
0
0
Sat, 27 Aug  04 AM
0
0
Sat, 27 Aug  05 AM
0
0
Sat, 27 Aug  06 AM
0
0
Sat, 27 Aug  07 AM
0
0
Sat, 27 Aug  08 AM
0
0
Sat, 27 Aug  09 AM
0
0
Sat, 27 Aug  10 AM
0
0
Sat, 27 Aug  11 AM
0
0
Sat, 27 Aug  12 PM
0
0
Sat, 27 Aug  01 PM
0
0
Sat, 27 Aug  02 PM
0
0
Sat, 27 Aug  03 PM
0
0
Sat, 27 Aug  04 PM
0
0
Sat, 27 Aug  05 PM
0
0
Sat, 27 Aug  06 PM
0
0
Sat, 27 Aug  07 PM
0
0
Sat, 27 Aug  08 PM
0
0
Sat, 27 Aug  09 PM
0
0
Sat, 27 Aug  10 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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