Air Quality Forecast Guidance for Chatham, NH

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 44.23 N, longitude: 71.07 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 12/06, 4Z)
28
26
*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, 05 Dec  02 PM
27
19
Sun, 05 Dec  03 PM
28
21
Sun, 05 Dec  04 PM
27
23
Sun, 05 Dec  05 PM
26
25
Sun, 05 Dec  06 PM
23
26
Sun, 05 Dec   07 PM
22
26
Sun, 05 Dec   08 PM
21
25
Sun, 05 Dec   09 PM
21
25
Sun, 05 Dec   10 PM
19
23
Sun, 05 Dec   11 PM
17
22
Mon, 06 Dec   12 AM
16
21
Mon, 06 Dec   01 AM
17
20
Mon, 06 Dec   02 AM
14
18
Mon, 06 Dec   03 AM
15
18
Mon, 06 Dec   04 AM
14
17
Mon, 06 Dec   05 AM
11
15
Mon, 06 Dec   06 AM
11
14
Mon, 06 Dec   07 AM
10
13
Mon, 06 Dec   08 AM
10
13
Mon, 06 Dec   09 AM
10
12
Mon, 06 Dec   10 AM
14
12
Mon, 06 Dec   11 AM
21
13
Mon, 06 Dec   12 PM
20
13
Mon, 06 Dec   01 PM
19
14
Mon, 06 Dec   02 PM
19
15
Mon, 06 Dec   03 PM
19
16
Mon, 06 Dec   04 PM
17
17
Mon, 06 Dec   05 PM
13
18
Mon, 06 Dec   06 PM
9
17
Mon, 06 Dec   07 PM
9
16
Mon, 06 Dec   08 PM
9
14
Mon, 06 Dec   09 PM
17
14
Mon, 06 Dec   10 PM
16
14
Mon, 06 Dec   11 PM
14
13
Tue, 07 Dec   12 AM
16
13
Tue, 07 Dec   01 AM
18
14
Tue, 07 Dec   02 AM
17
15
Tue, 07 Dec   03 AM
17
16
Tue, 07 Dec   04 AM
16
17
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, 05 Dec  02 PM
0
0
Sun, 05 Dec  03 PM
0
0
Sun, 05 Dec  04 PM
0
0
Sun, 05 Dec  05 PM
0
0
Sun, 05 Dec  06 PM
0
0
Sun, 05 Dec  07 PM
0
0
Sun, 05 Dec  08 PM
0
0
Sun, 05 Dec  09 PM
0
0
Sun, 05 Dec  10 PM
0
0
Sun, 05 Dec  11 PM
0
0
Mon, 06 Dec  12 AM
0
0
Mon, 06 Dec  01 AM
0
0
Mon, 06 Dec  02 AM
0
0
Mon, 06 Dec  03 AM
0
0
Mon, 06 Dec  04 AM
0
0
Mon, 06 Dec  05 AM
0
0
Mon, 06 Dec  06 AM
0
0
Mon, 06 Dec  07 AM
0
0
Mon, 06 Dec  08 AM
0
0
Mon, 06 Dec  09 AM
0
0
Mon, 06 Dec  10 AM
0
0
Mon, 06 Dec  11 AM
0
0
Mon, 06 Dec  12 PM
0
0
Mon, 06 Dec  01 PM
0
0
Mon, 06 Dec  02 PM
0
0
Mon, 06 Dec  03 PM
0
0
Mon, 06 Dec  04 PM
0
0
Mon, 06 Dec  05 PM
0
0
Mon, 06 Dec  06 PM
0
0
Mon, 06 Dec  07 PM
0
0
Mon, 06 Dec  08 PM
0
0
Mon, 06 Dec  09 PM
0
0
Mon, 06 Dec  10 PM
0
0
Mon, 06 Dec  11 PM
0
0
Tue, 07 Dec  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