Air Quality Forecast Guidance

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 36.58 N, longitude: 118.33 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 09/22, 4Z)
57
54
*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
Tue, 22 Sep  12 AM
47
51
Tue, 22 Sep  01 AM
46
50
Tue, 22 Sep  02 AM
44
48
Tue, 22 Sep  03 AM
41
46
Tue, 22 Sep  04 AM
40
45
Tue, 22 Sep  05 AM
40
44
Tue, 22 Sep  06 AM
41
43
Tue, 22 Sep  07 AM
39
42
Tue, 22 Sep  08 AM
36
41
Tue, 22 Sep  09 AM
41
40
Tue, 22 Sep  10 AM
46
41
Tue, 22 Sep  11 AM
49
42
Tue, 22 Sep  12 PM
52
43
Tue, 22 Sep  01 PM
56
45
Tue, 22 Sep  02 PM
59
47
Tue, 22 Sep  03 PM
60
50
Tue, 22 Sep  04 PM
60
53
Tue, 22 Sep   05 PM
59
55
Tue, 22 Sep   06 PM
57
56
Tue, 22 Sep   07 PM
54
57
Tue, 22 Sep   08 PM
45
56
Tue, 22 Sep   09 PM
45
55
Tue, 22 Sep   10 PM
47
53
Tue, 22 Sep   11 PM
50
52
Wed, 23 Sep   12 AM
49
51
Wed, 23 Sep   01 AM
47
49
Wed, 23 Sep   02 AM
45
48
Wed, 23 Sep   03 AM
45
47
Wed, 23 Sep   04 AM
43
47
Wed, 23 Sep   05 AM
42
46
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Tue, 22 Sep  12 AM
1202
58
Tue, 22 Sep  01 AM
895
42
Tue, 22 Sep  02 AM
946
41
Tue, 22 Sep  03 AM
1164
54
Tue, 22 Sep  04 AM
1259
96
Tue, 22 Sep  05 AM
916
103
Tue, 22 Sep  06 AM
0
63
Tue, 22 Sep  07 AM
481
57
Tue, 22 Sep  08 AM
586
109
Tue, 22 Sep  09 AM
560
155
Tue, 22 Sep  10 AM
544
217
Tue, 22 Sep  11 AM
389
377
Tue, 22 Sep  12 PM
305
476
Tue, 22 Sep  01 PM
145
378
Tue, 22 Sep  02 PM
41
247
Tue, 22 Sep  03 PM
0
184
Tue, 22 Sep  04 PM
0
136
Tue, 22 Sep  05 PM
0
100
Tue, 22 Sep  06 PM
0
52
Tue, 22 Sep  07 PM
0
22
Tue, 22 Sep  08 PM
0
6
Tue, 22 Sep  09 PM
0
4
Tue, 22 Sep  10 PM
0
2

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