Air Quality Forecast Guidance

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 36.07 N, longitude: 121.60 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 10/05, 4Z)
42
40
*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 Oct  07 PM
41
39
Wed, 04 Oct  08 PM
39
40
Wed, 04 Oct  09 PM
35
40
Wed, 04 Oct  10 PM
32
39
Wed, 04 Oct  11 PM
31
37
Thu, 05 Oct  12 AM
29
36
Thu, 05 Oct  01 AM
27
34
Thu, 05 Oct  02 AM
29
33
Thu, 05 Oct  03 AM
30
32
Thu, 05 Oct  04 AM
32
31
Thu, 05 Oct  05 AM
33
30
Thu, 05 Oct  06 AM
32
30
Thu, 05 Oct  07 AM
35
31
Thu, 05 Oct  08 AM
33
31
Thu, 05 Oct  09 AM
32
32
Thu, 05 Oct  10 AM
34
33
Thu, 05 Oct  11 AM
36
33
Thu, 05 Oct  12 PM
39
34
Thu, 05 Oct  01 PM
42
35
Thu, 05 Oct  02 PM
44
37
Thu, 05 Oct  03 PM
44
38
Thu, 05 Oct  04 PM
43
39
Thu, 05 Oct   05 PM
45
41
Thu, 05 Oct   06 PM
48
43
Thu, 05 Oct   07 PM
47
44
Thu, 05 Oct   08 PM
44
45
Thu, 05 Oct   09 PM
40
44
Thu, 05 Oct   10 PM
38
44
Thu, 05 Oct   11 PM
37
43
Fri, 06 Oct   12 AM
36
42
Fri, 06 Oct   01 AM
34
40
Fri, 06 Oct   02 AM
36
39
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 Oct  07 PM
0
0
Wed, 04 Oct  08 PM
0
0
Wed, 04 Oct  09 PM
0
0
Wed, 04 Oct  10 PM
0
0
Wed, 04 Oct  11 PM
0
0
Thu, 05 Oct  12 AM
0
0
Thu, 05 Oct  01 AM
0
0
Thu, 05 Oct  02 AM
0
0
Thu, 05 Oct  03 AM
0
0
Thu, 05 Oct  04 AM
0
0
Thu, 05 Oct  05 AM
0
0
Thu, 05 Oct  06 AM
0
0
Thu, 05 Oct  07 AM
0
0
Thu, 05 Oct  08 AM
0
0
Thu, 05 Oct  09 AM
0
0
Thu, 05 Oct  10 AM
0
0
Thu, 05 Oct  11 AM
0
0
Thu, 05 Oct  12 PM
0
0
Thu, 05 Oct  01 PM
0
0
Thu, 05 Oct  02 PM
0
0
Thu, 05 Oct  03 PM
0
0
Thu, 05 Oct  04 PM
0
0
Thu, 05 Oct  05 PM
0
0
Thu, 05 Oct  06 PM
0
0
National Weather Service Air Quality Program Page
Environmental Protection Agency AirNow Forecast Page
Graphical Air Quality Forecast Guidance
FAQ

    US Dept of Commerce
    National Oceanic and Atmospheric Administration
    National Weather Service
    1325 East West Highway
    Silver Spring, MD 20910
    Page Author: NWS Internet Services Team 		Disclaimer
Information Quality
Credits
Glossary
 Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities