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Air Quality Forecast Guidance for Roanoke, VA

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 37.28 N, longitude: 79.96 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 04/01, 4Z)
48
47
*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
Tue, 31 Mar  10 AM
22
22
Tue, 31 Mar  11 AM
34
22
Tue, 31 Mar  12 PM
42
23
Tue, 31 Mar  01 PM
45
25
Tue, 31 Mar  02 PM
46
28
Tue, 31 Mar  03 PM
46
32
Tue, 31 Mar  04 PM
47
37
Tue, 31 Mar  05 PM
48
41
Tue, 31 Mar  06 PM
48
44
Tue, 31 Mar  07 PM
48
46
Tue, 31 Mar   08 PM
45
47
Tue, 31 Mar   09 PM
42
46
Tue, 31 Mar   10 PM
44
46
Tue, 31 Mar   11 PM
46
46
Wed, 01 Apr   12 AM
44
45
Wed, 01 Apr   01 AM
43
45
Wed, 01 Apr   02 AM
40
44
Wed, 01 Apr   03 AM
38
43
Wed, 01 Apr   04 AM
36
42
Wed, 01 Apr   05 AM
34
40
Wed, 01 Apr   06 AM
31
39
Wed, 01 Apr   07 AM
26
36
Wed, 01 Apr   08 AM
23
34
Wed, 01 Apr   09 AM
27
32
Wed, 01 Apr   10 AM
35
31
Wed, 01 Apr   11 AM
38
31
Wed, 01 Apr   12 PM
40
32
Wed, 01 Apr   01 PM
44
33
Wed, 01 Apr   02 PM
46
35
Wed, 01 Apr   03 PM
48
38
Wed, 01 Apr   04 PM
49
41
Wed, 01 Apr   05 PM
48
44
Wed, 01 Apr   06 PM
47
45
Wed, 01 Apr   07 PM
40
45
Wed, 01 Apr   08 PM
24
43
Wed, 01 Apr   09 PM
16
40
Wed, 01 Apr   10 PM
15
36
Wed, 01 Apr   11 PM
16
32
Thu, 02 Apr   12 AM
16
28
Thu, 02 Apr   01 AM
18
24
Thu, 02 Apr   02 AM
20
21
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, 31 Mar  08 AM
0
0
Tue, 31 Mar  09 AM
0
0
Tue, 31 Mar  10 AM
0
0
Tue, 31 Mar  11 AM
0
0
Tue, 31 Mar  12 PM
0
0
Tue, 31 Mar  01 PM
0
0
Tue, 31 Mar  02 PM
0
0
Tue, 31 Mar  03 PM
0
0
Tue, 31 Mar  04 PM
0
0
Tue, 31 Mar  05 PM
0
0
Tue, 31 Mar  06 PM
0
0
Tue, 31 Mar  07 PM
0
0
Tue, 31 Mar  08 PM
0
0
Tue, 31 Mar  09 PM
0
0
Tue, 31 Mar  10 PM
0
0
Tue, 31 Mar  11 PM
0
0
Wed, 01 Apr  12 AM
0
0
Wed, 01 Apr  01 AM
0
0
Wed, 01 Apr  02 AM
0
0
Wed, 01 Apr  03 AM
0
0
Wed, 01 Apr  04 AM
0
0
Wed, 01 Apr  05 AM
0
0
Wed, 01 Apr  06 AM
0
0
Wed, 01 Apr  07 AM
0
0
Wed, 01 Apr  08 AM
0
0
Wed, 01 Apr  09 AM
0
0
Wed, 01 Apr  10 AM
0
0
Wed, 01 Apr  11 AM
0
0
Wed, 01 Apr  12 PM
0
0
Wed, 01 Apr  01 PM
0
0
Wed, 01 Apr  02 PM
0
0
Wed, 01 Apr  03 PM
0
0
Wed, 01 Apr  04 PM
0
0
Wed, 01 Apr  05 PM
0
0
Wed, 01 Apr  06 PM
0
0
Wed, 01 Apr  07 PM
0
0
Wed, 01 Apr  08 PM
0
0
Wed, 01 Apr  09 PM
0
0
Wed, 01 Apr  10 PM
0
0
Wed, 01 Apr  11 PM
0
0
Thu, 02 Apr  12 AM
0
0
Thu, 02 Apr  01 AM
0
0

National Weather Service Air Quality Program Page
Environmental Protection Agency AirNow Forecast Page
Graphical Air Quality Forecast Guidance
FAQ


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