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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 03/27, 4Z)
48
47
*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
Thu, 26 Mar  04 PM
46
47
Thu, 26 Mar   05 PM
46
47
Thu, 26 Mar   06 PM
46
46
Thu, 26 Mar   07 PM
46
46
Thu, 26 Mar   08 PM
46
46
Thu, 26 Mar   09 PM
45
46
Thu, 26 Mar   10 PM
42
45
Thu, 26 Mar   11 PM
40
45
Fri, 27 Mar   12 AM
38
44
Fri, 27 Mar   01 AM
36
42
Fri, 27 Mar   02 AM
35
41
Fri, 27 Mar   03 AM
35
40
Fri, 27 Mar   04 AM
36
38
Fri, 27 Mar   05 AM
37
37
Fri, 27 Mar   06 AM
37
37
Fri, 27 Mar   07 AM
38
37
Fri, 27 Mar   08 AM
39
36
Fri, 27 Mar   09 AM
42
37
Fri, 27 Mar   10 AM
46
39
Fri, 27 Mar   11 AM
49
41
Fri, 27 Mar   12 PM
50
42
Fri, 27 Mar   01 PM
51
44
Fri, 27 Mar   02 PM
51
46
Fri, 27 Mar   03 PM
52
48
Fri, 27 Mar   04 PM
52
49
Fri, 27 Mar   05 PM
52
50
Fri, 27 Mar   06 PM
52
51
Fri, 27 Mar   07 PM
52
52
Fri, 27 Mar   08 PM
51
52
Fri, 27 Mar   09 PM
48
51
Fri, 27 Mar   10 PM
45
51
Fri, 27 Mar   11 PM
46
50
Sat, 28 Mar   12 AM
47
49
Sat, 28 Mar   01 AM
47
49
Sat, 28 Mar   02 AM
46
48
Sat, 28 Mar   03 AM
46
47
Sat, 28 Mar   04 AM
46
46
Sat, 28 Mar   05 AM
47
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
Thu, 26 Mar  04 PM
0
0
Thu, 26 Mar  05 PM
0
0
Thu, 26 Mar  06 PM
0
0
Thu, 26 Mar  07 PM
0
0
Thu, 26 Mar  08 PM
0
0
Thu, 26 Mar  09 PM
0
0
Thu, 26 Mar  10 PM
0
0
Thu, 26 Mar  11 PM
0
0
Fri, 27 Mar  12 AM
0
0
Fri, 27 Mar  01 AM
0
0
Fri, 27 Mar  02 AM
0
0
Fri, 27 Mar  03 AM
0
0
Fri, 27 Mar  04 AM
0
0
Fri, 27 Mar  05 AM
0
0
Fri, 27 Mar  06 AM
0
0
Fri, 27 Mar  07 AM
0
0
Fri, 27 Mar  08 AM
0
0
Fri, 27 Mar  09 AM
0
0
Fri, 27 Mar  10 AM
0
0
Fri, 27 Mar  11 AM
0
0
Fri, 27 Mar  12 PM
0
0
Fri, 27 Mar  01 PM
0
0
Fri, 27 Mar  02 PM
0
0
Fri, 27 Mar  03 PM
0
0
Fri, 27 Mar  04 PM
0
0
Fri, 27 Mar  05 PM
0
0
Fri, 27 Mar  06 PM
0
0
Fri, 27 Mar  07 PM
0
0
Fri, 27 Mar  08 PM
0
0
Fri, 27 Mar  09 PM
0
0
Fri, 27 Mar  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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