Air Quality Forecast Guidance for San Jose, CA

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 37.21 N, longitude: 121.78 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 01/30, 4Z)
39
35
*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
Sun, 29 Jan  01 PM
36
27
Sun, 29 Jan  02 PM
36
29
Sun, 29 Jan  03 PM
36
30
Sun, 29 Jan   04 PM
37
32
Sun, 29 Jan   05 PM
39
34
Sun, 29 Jan   06 PM
34
35
Sun, 29 Jan   07 PM
24
35
Sun, 29 Jan   08 PM
15
32
Sun, 29 Jan   09 PM
10
29
Sun, 29 Jan   10 PM
9
26
Sun, 29 Jan   11 PM
11
22
Mon, 30 Jan   12 AM
15
20
Mon, 30 Jan   01 AM
15
17
Mon, 30 Jan   02 AM
13
14
Mon, 30 Jan   03 AM
18
13
Mon, 30 Jan   04 AM
10
13
Mon, 30 Jan   05 AM
14
13
Mon, 30 Jan   06 AM
16
14
Mon, 30 Jan   07 AM
12
14
Mon, 30 Jan   08 AM
9
13
Mon, 30 Jan   09 AM
18
14
Mon, 30 Jan   10 AM
25
15
Mon, 30 Jan   11 AM
28
17
Mon, 30 Jan   12 PM
30
19
Mon, 30 Jan   01 PM
32
21
Mon, 30 Jan   02 PM
34
23
Mon, 30 Jan   03 PM
35
26
Mon, 30 Jan   04 PM
35
30
Mon, 30 Jan   05 PM
36
32
Mon, 30 Jan   06 PM
28
32
Mon, 30 Jan   07 PM
16
31
Mon, 30 Jan   08 PM
11
28
Mon, 30 Jan   09 PM
7
25
Mon, 30 Jan   10 PM
9
22
Mon, 30 Jan   11 PM
15
19
Tue, 31 Jan   12 AM
19
17
Tue, 31 Jan   01 AM
22
16
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Sun, 29 Jan  01 PM
0
0
Sun, 29 Jan  02 PM
0
0
Sun, 29 Jan  03 PM
0
0
Sun, 29 Jan  04 PM
0
0
Sun, 29 Jan  05 PM
0
0
Sun, 29 Jan  06 PM
0
0
Sun, 29 Jan  07 PM
0
0
Sun, 29 Jan  08 PM
0
0
Sun, 29 Jan  09 PM
0
0
Sun, 29 Jan  10 PM
0
0
Sun, 29 Jan  11 PM
0
0
Mon, 30 Jan  12 AM
0
0
Mon, 30 Jan  01 AM
0
0
Mon, 30 Jan  02 AM
0
0
Mon, 30 Jan  03 AM
0
0
Mon, 30 Jan  04 AM
0
0
Mon, 30 Jan  05 AM
0
0
Mon, 30 Jan  06 AM
0
0
Mon, 30 Jan  07 AM
0
0
Mon, 30 Jan  08 AM
0
0
Mon, 30 Jan  09 AM
0
0
Mon, 30 Jan  10 AM
0
0
Mon, 30 Jan  11 AM
0
0
Mon, 30 Jan  12 PM
0
0
Mon, 30 Jan  01 PM
0
0
Mon, 30 Jan  02 PM
0
0
Mon, 30 Jan  03 PM
0
0
Mon, 30 Jan  04 PM
0
0
Mon, 30 Jan  05 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