Air Quality Forecast Guidance for Grafton, ND

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 48.41 N, longitude: 97.42 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 10/24, 4Z)
30
28
*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, 23 Oct  11 PM
21
25
Wed, 24 Oct  12 AM
19
24
Wed, 24 Oct  01 AM
19
22
Wed, 24 Oct  02 AM
18
21
Wed, 24 Oct  03 AM
18
20
Wed, 24 Oct  04 AM
19
20
Wed, 24 Oct  05 AM
19
19
Wed, 24 Oct  06 AM
19
19
Wed, 24 Oct  07 AM
19
19
Wed, 24 Oct  08 AM
18
19
Wed, 24 Oct  09 AM
19
19
Wed, 24 Oct  10 AM
20
19
Wed, 24 Oct  11 AM
21
19
Wed, 24 Oct  12 PM
22
20
Wed, 24 Oct  01 PM
23
20
Wed, 24 Oct  02 PM
24
21
Wed, 24 Oct  03 PM
24
22
Wed, 24 Oct  04 PM
24
22
Wed, 24 Oct  05 PM
24
23
Wed, 24 Oct  06 PM
24
23
Wed, 24 Oct   07 PM
22
23
Wed, 24 Oct   08 PM
21
23
Wed, 24 Oct   09 PM
22
23
Wed, 24 Oct   10 PM
23
23
Wed, 24 Oct   11 PM
24
23
Thu, 25 Oct   12 AM
24
23
Thu, 25 Oct   01 AM
24
23
Thu, 25 Oct   02 AM
25
23
Thu, 25 Oct   03 AM
25
24
Thu, 25 Oct   04 AM
25
24
Thu, 25 Oct   05 AM
26
24
Thu, 25 Oct   06 AM
26
25
Thu, 25 Oct   07 AM
26
25
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, 23 Oct  11 PM
0
3
Wed, 24 Oct  12 AM
0
3
Wed, 24 Oct  01 AM
13
3
Wed, 24 Oct  02 AM
15
2
Wed, 24 Oct  03 AM
3
2
Wed, 24 Oct  04 AM
2
6
Wed, 24 Oct  05 AM
13
5
Wed, 24 Oct  06 AM
44
5
Wed, 24 Oct  07 AM
115
10
Wed, 24 Oct  08 AM
38
7
Wed, 24 Oct  09 AM
34
4
Wed, 24 Oct  10 AM
7
2
Wed, 24 Oct  11 AM
14
2
Wed, 24 Oct  12 PM
9
3
Wed, 24 Oct  01 PM
2
2
Wed, 24 Oct  02 PM
7
2
Wed, 24 Oct  03 PM
7
1
Wed, 24 Oct  04 PM
9
1
Wed, 24 Oct  05 PM
21
2
Wed, 24 Oct  06 PM
2
1
Wed, 24 Oct  07 PM
0
0
Wed, 24 Oct  08 PM
0
0
Wed, 24 Oct  09 PM
2
1
Wed, 24 Oct  10 PM
1
0
Wed, 24 Oct  11 PM
0
0
Thu, 25 Oct  12 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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