Air Quality Forecast Guidance for Halifax, NC

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 36.25 N, longitude: 77.62 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 04/25, 4Z)
43
44
*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
Mon, 24 Apr  04 PM
36
37
Mon, 24 Apr  05 PM
36
37
Mon, 24 Apr  06 PM
36
36
Mon, 24 Apr  07 PM
34
36
Mon, 24 Apr   08 PM
35
36
Mon, 24 Apr   09 PM
37
36
Mon, 24 Apr   10 PM
38
36
Mon, 24 Apr   11 PM
41
36
Tue, 25 Apr   12 AM
43
37
Tue, 25 Apr   01 AM
44
38
Tue, 25 Apr   02 AM
45
40
Tue, 25 Apr   03 AM
45
41
Tue, 25 Apr   04 AM
44
42
Tue, 25 Apr   05 AM
44
43
Tue, 25 Apr   06 AM
42
44
Tue, 25 Apr   07 AM
40
44
Tue, 25 Apr   08 AM
39
43
Tue, 25 Apr   09 AM
38
42
Tue, 25 Apr   10 AM
38
42
Tue, 25 Apr   11 AM
37
40
Tue, 25 Apr   12 PM
36
39
Tue, 25 Apr   01 PM
35
38
Tue, 25 Apr   02 PM
35
37
Tue, 25 Apr   03 PM
34
36
Tue, 25 Apr   04 PM
36
36
Tue, 25 Apr   05 PM
36
36
Tue, 25 Apr   06 PM
36
36
Tue, 25 Apr   07 PM
34
35
Tue, 25 Apr   08 PM
33
35
Tue, 25 Apr   09 PM
32
34
Tue, 25 Apr   10 PM
31
34
Tue, 25 Apr   11 PM
31
34
Wed, 26 Apr   12 AM
30
33
Wed, 26 Apr   01 AM
30
32
Wed, 26 Apr   02 AM
28
31
Wed, 26 Apr   03 AM
27
30
Wed, 26 Apr   04 AM
25
29
Wed, 26 Apr   05 AM
23
28
Wed, 26 Apr   06 AM
20
27
Wed, 26 Apr   07 AM
17
25
Wed, 26 Apr   08 AM
15
23
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Mon, 24 Apr  01 PM
0
0
Mon, 24 Apr  02 PM
0
0
Mon, 24 Apr  03 PM
0
0
Mon, 24 Apr  04 PM
0
0
Mon, 24 Apr  05 PM
0
0
Mon, 24 Apr  06 PM
0
0
Mon, 24 Apr  07 PM
0
0
Mon, 24 Apr  08 PM
0
0
Mon, 24 Apr  09 PM
0
0
Mon, 24 Apr  10 PM
0
0
Mon, 24 Apr  11 PM
0
0
Tue, 25 Apr  12 AM
0
0
Tue, 25 Apr  01 AM
0
0
Tue, 25 Apr  02 AM
0
0
Tue, 25 Apr  03 AM
0
0
Tue, 25 Apr  04 AM
0
0
Tue, 25 Apr  05 AM
0
0
Tue, 25 Apr  06 AM
0
0
Tue, 25 Apr  07 AM
0
0
Tue, 25 Apr  08 AM
0
0
Tue, 25 Apr  09 AM
0
0
Tue, 25 Apr  10 AM
0
0
Tue, 25 Apr  11 AM
0
0
Tue, 25 Apr  12 PM
0
1
Tue, 25 Apr  01 PM
0
1
Tue, 25 Apr  02 PM
0
1
Tue, 25 Apr  03 PM
0
1
Tue, 25 Apr  04 PM
1
1
Tue, 25 Apr  05 PM
0
2
Tue, 25 Apr  06 PM
5
2
Tue, 25 Apr  07 PM
0
2
Tue, 25 Apr  08 PM
0
2
Tue, 25 Apr  09 PM
0
2
Tue, 25 Apr  10 PM
0
2
Tue, 25 Apr  11 PM
0
2
Wed, 26 Apr  12 AM
0
2
Wed, 26 Apr  01 AM
0
2

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


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