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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 01/31, 4Z)
51
50
*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, 30 Jan  08 AM
45
45
Fri, 30 Jan  09 AM
47
45
Fri, 30 Jan  10 AM
48
46
Fri, 30 Jan  11 AM
49
46
Fri, 30 Jan  12 PM
50
47
Fri, 30 Jan  01 PM
51
48
Fri, 30 Jan  02 PM
51
48
Fri, 30 Jan  03 PM
51
49
Fri, 30 Jan   04 PM
51
50
Fri, 30 Jan   05 PM
49
50
Fri, 30 Jan   06 PM
47
50
Fri, 30 Jan   07 PM
46
50
Fri, 30 Jan   08 PM
47
49
Fri, 30 Jan   09 PM
47
49
Fri, 30 Jan   10 PM
47
48
Fri, 30 Jan   11 PM
47
48
Sat, 31 Jan   12 AM
46
47
Sat, 31 Jan   01 AM
46
47
Sat, 31 Jan   02 AM
47
47
Sat, 31 Jan   03 AM
47
47
Sat, 31 Jan   04 AM
48
47
Sat, 31 Jan   05 AM
48
47
Sat, 31 Jan   06 AM
48
47
Sat, 31 Jan   07 AM
49
48
Sat, 31 Jan   08 AM
51
48
Sat, 31 Jan   09 AM
52
49
Sat, 31 Jan   10 AM
53
49
Sat, 31 Jan   11 AM
54
50
Sat, 31 Jan   12 PM
55
51
Sat, 31 Jan   01 PM
56
52
Sat, 31 Jan   02 PM
57
53
Sat, 31 Jan   03 PM
59
54
Sat, 31 Jan   04 PM
59
56
Sat, 31 Jan   05 PM
60
57
Sat, 31 Jan   06 PM
60
58
Sat, 31 Jan   07 PM
60
58
Sat, 31 Jan   08 PM
60
59
Sat, 31 Jan   09 PM
59
59
Sat, 31 Jan   10 PM
59
60
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, 30 Jan  08 AM
0
0
Fri, 30 Jan  09 AM
0
0
Fri, 30 Jan  10 AM
0
0
Fri, 30 Jan  11 AM
0
0
Fri, 30 Jan  12 PM
0
0
Fri, 30 Jan  01 PM
0
0
Fri, 30 Jan  02 PM
0
0
Fri, 30 Jan  03 PM
0
0
Fri, 30 Jan  04 PM
0
0
Fri, 30 Jan  05 PM
0
0
Fri, 30 Jan  06 PM
0
0
Fri, 30 Jan  07 PM
0
0
Fri, 30 Jan  08 PM
0
0
Fri, 30 Jan  09 PM
0
0
Fri, 30 Jan  10 PM
0
0
Fri, 30 Jan  11 PM
0
0
Sat, 31 Jan  12 AM
0
0
Sat, 31 Jan  01 AM
0
0
Sat, 31 Jan  02 AM
0
0
Sat, 31 Jan  03 AM
0
0
Sat, 31 Jan  04 AM
0
0
Sat, 31 Jan  05 AM
0
0
Sat, 31 Jan  06 AM
0
0
Sat, 31 Jan  07 AM
0
0
Sat, 31 Jan  08 AM
0
0
Sat, 31 Jan  09 AM
0
0
Sat, 31 Jan  10 AM
0
0
Sat, 31 Jan  11 AM
0
0
Sat, 31 Jan  12 PM
0
0
Sat, 31 Jan  01 PM
0
0
Sat, 31 Jan  02 PM
0
0
Sat, 31 Jan  03 PM
0
0
Sat, 31 Jan  04 PM
0
0
Sat, 31 Jan  05 PM
0
0
Sat, 31 Jan  06 PM
0
0
Sat, 31 Jan  07 PM
0
0
Sat, 31 Jan  08 PM
0
0
Sat, 31 Jan  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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