Air Quality Forecast Guidance

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 38.08 N, longitude: 82.75 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 11/24, 4Z)
28
23
*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)

6Z Model Run
8 Hour Average Ozone
Concentration (PPB)

6Z Model Run
Thu, 23 Nov  11 AM
18
8
Thu, 23 Nov  12 PM
21
10
Thu, 23 Nov  01 PM
24
12
Thu, 23 Nov  02 PM
26
15
Thu, 23 Nov  03 PM
28
18
Thu, 23 Nov  04 PM
27
21
Thu, 23 Nov  05 PM
23
23
Thu, 23 Nov  06 PM
18
23
Thu, 23 Nov   07 PM
15
23
Thu, 23 Nov   08 PM
14
22
Thu, 23 Nov   09 PM
13
21
Thu, 23 Nov   10 PM
13
19
Thu, 23 Nov   11 PM
11
17
Fri, 24 Nov   12 AM
10
15
Fri, 24 Nov   01 AM
8
13
Fri, 24 Nov   02 AM
7
12
Fri, 24 Nov   03 AM
7
10
Fri, 24 Nov   04 AM
6
9
Fri, 24 Nov   05 AM
4
8
Fri, 24 Nov   06 AM
3
7
Fri, 24 Nov   07 AM
2
6
Fri, 24 Nov   08 AM
1
5
Fri, 24 Nov   09 AM
8
5
Fri, 24 Nov   10 AM
13
5
Fri, 24 Nov   11 AM
19
7
Fri, 24 Nov   12 PM
26
10
Fri, 24 Nov   01 PM
30
13
Fri, 24 Nov   02 PM
33
17
Fri, 24 Nov   03 PM
34
21
Fri, 24 Nov   04 PM
35
25
Fri, 24 Nov   05 PM
33
28
Fri, 24 Nov   06 PM
30
30
Fri, 24 Nov   07 PM
29
31
Fri, 24 Nov   08 PM
28
32
Fri, 24 Nov   09 PM
28
31
Fri, 24 Nov   10 PM
30
31
Fri, 24 Nov   11 PM
34
31
Sat, 25 Nov   12 AM
37
31
Sat, 25 Nov   01 AM
39
32
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Thu, 23 Nov  11 AM
0
0
Thu, 23 Nov  12 PM
0
0
Thu, 23 Nov  01 PM
0
0
Thu, 23 Nov  02 PM
0
0
Thu, 23 Nov  03 PM
0
0
Thu, 23 Nov  04 PM
0
0
Thu, 23 Nov  05 PM
0
0
Thu, 23 Nov  06 PM
0
0
Thu, 23 Nov  07 PM
0
0
Thu, 23 Nov  08 PM
0
0
Thu, 23 Nov  09 PM
0
0
Thu, 23 Nov  10 PM
0
0
Thu, 23 Nov  11 PM
0
0
Fri, 24 Nov  12 AM
0
0
Fri, 24 Nov  01 AM
0
0
Fri, 24 Nov  02 AM
0
0
Fri, 24 Nov  03 AM
0
0
Fri, 24 Nov  04 AM
0
0
Fri, 24 Nov  05 AM
0
0
Fri, 24 Nov  06 AM
0
0
Fri, 24 Nov  07 AM
0
0
Fri, 24 Nov  08 AM
0
0
Fri, 24 Nov  09 AM
0
0
Fri, 24 Nov  10 AM
0
0
Fri, 24 Nov  11 AM
0
0
Fri, 24 Nov  12 PM
0
0
Fri, 24 Nov  01 PM
0
0
Fri, 24 Nov  02 PM
0
0
Fri, 24 Nov  03 PM
0
0
Fri, 24 Nov  04 PM
0
0
Fri, 24 Nov  05 PM
0
0
Fri, 24 Nov  06 PM
0
0
Fri, 24 Nov  07 PM
0
0
Fri, 24 Nov  08 PM
0
0
Fri, 24 Nov  09 PM
0
0
Fri, 24 Nov  10 PM
0
0
Fri, 24 Nov  11 PM
0
0
Sat, 25 Nov  12 AM
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