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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 06/19, 4Z)
52
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)
12Z Model Run
8 Hour Average Ozone
Concentration (PPB)
12Z Model Run
Wed, 19 Jun  03 AM
48
49
Wed, 19 Jun  04 AM
48
49
Wed, 19 Jun  05 AM
47
48
Wed, 19 Jun  06 AM
47
47
Wed, 19 Jun  07 AM
47
47
Wed, 19 Jun  08 AM
52
48
Wed, 19 Jun  09 AM
56
49
Wed, 19 Jun  10 AM
58
50
Wed, 19 Jun  11 AM
58
52
Wed, 19 Jun  12 PM
58
53
Wed, 19 Jun  01 PM
58
54
Wed, 19 Jun  02 PM
58
56
Wed, 19 Jun  03 PM
58
57
Wed, 19 Jun  04 PM
58
58
Wed, 19 Jun   05 PM
57
58
Wed, 19 Jun   06 PM
57
58
Wed, 19 Jun   07 PM
56
57
Wed, 19 Jun   08 PM
55
57
Wed, 19 Jun   09 PM
51
56
Wed, 19 Jun   10 PM
47
55
Wed, 19 Jun   11 PM
45
53
Thu, 20 Jun   12 AM
45
52
Thu, 20 Jun   01 AM
45
50
Thu, 20 Jun   02 AM
45
48
Thu, 20 Jun   03 AM
45
47
Thu, 20 Jun   04 AM
45
46
Thu, 20 Jun   05 AM
46
45
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)
06Z Model Run
Wed, 19 Jun  03 AM
0
0
Wed, 19 Jun  04 AM
0
0
Wed, 19 Jun  05 AM
0
0
Wed, 19 Jun  06 AM
0
0
Wed, 19 Jun  07 AM
0
0
Wed, 19 Jun  08 AM
0
0
Wed, 19 Jun  09 AM
0
0
Wed, 19 Jun  10 AM
0
0
Wed, 19 Jun  11 AM
0
0
Wed, 19 Jun  12 PM
0
0
Wed, 19 Jun  01 PM
0
0
Wed, 19 Jun  02 PM
0
0
Wed, 19 Jun  03 PM
0
0
Wed, 19 Jun  04 PM
0
0
Wed, 19 Jun  05 PM
0
0
Wed, 19 Jun  06 PM
0
0
Wed, 19 Jun  07 PM
0
0
Wed, 19 Jun  08 PM
0
0
Wed, 19 Jun  09 PM
0
0
Wed, 19 Jun  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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