Air Quality Forecast Guidance for Yosemite Valley, CA

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 37.75 N, longitude: 119.61 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 08/05, 4Z)
74
72
*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, 04 Aug  03 PM
74
64
Wed, 04 Aug  04 PM
73
67
Wed, 04 Aug   05 PM
72
69
Wed, 04 Aug   06 PM
73
71
Wed, 04 Aug   07 PM
73
72
Wed, 04 Aug   08 PM
70
72
Wed, 04 Aug   09 PM
67
72
Wed, 04 Aug   10 PM
64
71
Wed, 04 Aug   11 PM
62
69
Thu, 05 Aug   12 AM
63
68
Thu, 05 Aug   01 AM
62
67
Thu, 05 Aug   02 AM
62
65
Thu, 05 Aug   03 AM
62
64
Thu, 05 Aug   04 AM
62
63
Thu, 05 Aug   05 AM
64
63
Thu, 05 Aug   06 AM
64
63
Thu, 05 Aug   07 AM
65
63
Thu, 05 Aug   08 AM
62
63
Thu, 05 Aug   09 AM
59
63
Thu, 05 Aug   10 AM
62
63
Thu, 05 Aug   11 AM
67
63
Thu, 05 Aug   12 PM
67
64
Thu, 05 Aug   01 PM
66
64
Thu, 05 Aug   02 PM
65
64
Thu, 05 Aug   03 PM
65
64
Thu, 05 Aug   04 PM
65
64
Thu, 05 Aug   05 PM
65
65
Thu, 05 Aug   06 PM
65
66
Thu, 05 Aug   07 PM
65
65
Thu, 05 Aug   08 PM
64
65
Thu, 05 Aug   09 PM
63
65
Thu, 05 Aug   10 PM
60
64
Thu, 05 Aug   11 PM
57
63
Fri, 06 Aug   12 AM
56
62
Fri, 06 Aug   01 AM
56
61
Fri, 06 Aug   02 AM
58
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
Wed, 04 Aug  03 PM
0
1
Wed, 04 Aug  04 PM
0
2
Wed, 04 Aug  05 PM
0
2
Wed, 04 Aug  06 PM
0
0
Wed, 04 Aug  07 PM
0
0
Wed, 04 Aug  08 PM
0
0
Wed, 04 Aug  09 PM
0
0
Wed, 04 Aug  10 PM
0
0
Wed, 04 Aug  11 PM
0
0
Thu, 05 Aug  12 AM
0
0
Thu, 05 Aug  01 AM
0
0
Thu, 05 Aug  02 AM
0
0
Thu, 05 Aug  03 AM
0
0
Thu, 05 Aug  04 AM
0
0
Thu, 05 Aug  05 AM
0
0
Thu, 05 Aug  06 AM
0
0
Thu, 05 Aug  07 AM
0
0
Thu, 05 Aug  08 AM
0
0
Thu, 05 Aug  09 AM
0
0
Thu, 05 Aug  10 AM
0
0
Thu, 05 Aug  11 AM
0
0
Thu, 05 Aug  12 PM
0
0
Thu, 05 Aug  01 PM
0
0
Thu, 05 Aug  02 PM
0
0
Thu, 05 Aug  03 PM
0
0
Thu, 05 Aug  04 PM
0
0
Thu, 05 Aug  05 PM
0
0
Thu, 05 Aug  06 PM
0
0
Thu, 05 Aug  07 PM
0
0
Thu, 05 Aug  08 PM
0
0
Thu, 05 Aug  09 PM
0
0
Thu, 05 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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