Air Quality Forecast Guidance

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 36.55 N, longitude: 118.51 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)
84
80
*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
75
72
Wed, 04 Aug  04 PM
78
74
Wed, 04 Aug   05 PM
81
75
Wed, 04 Aug   06 PM
83
76
Wed, 04 Aug   07 PM
84
78
Wed, 04 Aug   08 PM
82
79
Wed, 04 Aug   09 PM
78
79
Wed, 04 Aug   10 PM
77
80
Wed, 04 Aug   11 PM
78
80
Thu, 05 Aug   12 AM
76
80
Thu, 05 Aug   01 AM
74
79
Thu, 05 Aug   02 AM
75
78
Thu, 05 Aug   03 AM
76
77
Thu, 05 Aug   04 AM
76
76
Thu, 05 Aug   05 AM
76
76
Thu, 05 Aug   06 AM
75
76
Thu, 05 Aug   07 AM
75
75
Thu, 05 Aug   08 AM
70
74
Thu, 05 Aug   09 AM
71
74
Thu, 05 Aug   10 AM
71
74
Thu, 05 Aug   11 AM
70
73
Thu, 05 Aug   12 PM
71
72
Thu, 05 Aug   01 PM
72
72
Thu, 05 Aug   02 PM
72
71
Thu, 05 Aug   03 PM
73
71
Thu, 05 Aug   04 PM
74
72
Thu, 05 Aug   05 PM
76
72
Thu, 05 Aug   06 PM
78
73
Thu, 05 Aug   07 PM
79
74
Thu, 05 Aug   08 PM
77
75
Thu, 05 Aug   09 PM
75
75
Thu, 05 Aug   10 PM
73
75
Thu, 05 Aug   11 PM
72
75
Fri, 06 Aug   12 AM
70
75
Fri, 06 Aug   01 AM
70
74
Fri, 06 Aug   02 AM
69
73
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
0
Wed, 04 Aug  04 PM
0
0
Wed, 04 Aug  05 PM
0
0
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
1
Thu, 05 Aug  01 AM
0
0
Thu, 05 Aug  02 AM
0
1
Thu, 05 Aug  03 AM
0
1
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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