Air Quality Forecast Guidance for Logan Square, IL

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 41.94 N, longitude: 87.70 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 05/30, 4Z)
63
61
*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, 29 May  02 PM
59
53
Mon, 29 May  03 PM
60
55
Mon, 29 May  04 PM
61
57
Mon, 29 May  05 PM
61
58
Mon, 29 May  06 PM
61
59
Mon, 29 May   07 PM
60
60
Mon, 29 May   08 PM
59
60
Mon, 29 May   09 PM
59
60
Mon, 29 May   10 PM
60
60
Mon, 29 May   11 PM
59
60
Tue, 30 May   12 AM
55
59
Tue, 30 May   01 AM
53
58
Tue, 30 May   02 AM
53
57
Tue, 30 May   03 AM
54
56
Tue, 30 May   04 AM
54
56
Tue, 30 May   05 AM
51
55
Tue, 30 May   06 AM
48
53
Tue, 30 May   07 AM
41
51
Tue, 30 May   08 AM
39
49
Tue, 30 May   09 AM
45
48
Tue, 30 May   10 AM
49
48
Tue, 30 May   11 AM
51
47
Tue, 30 May   12 PM
55
47
Tue, 30 May   01 PM
61
49
Tue, 30 May   02 PM
65
51
Tue, 30 May   03 PM
68
54
Tue, 30 May   04 PM
71
58
Tue, 30 May   05 PM
73
62
Tue, 30 May   06 PM
71
64
Tue, 30 May   07 PM
68
66
Tue, 30 May   08 PM
69
68
Tue, 30 May   09 PM
69
69
Tue, 30 May   10 PM
66
69
Tue, 30 May   11 PM
62
69
Wed, 31 May   12 AM
60
67
Wed, 31 May   01 AM
56
65
Wed, 31 May   02 AM
50
63
Wed, 31 May   03 AM
40
59
Wed, 31 May   04 AM
25
53
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, 29 May  02 PM
0
0
Mon, 29 May  03 PM
0
0
Mon, 29 May  04 PM
0
0
Mon, 29 May  05 PM
0
0
Mon, 29 May  06 PM
0
0
Mon, 29 May  07 PM
0
0
Mon, 29 May  08 PM
0
0
Mon, 29 May  09 PM
0
0
Mon, 29 May  10 PM
0
0
Mon, 29 May  11 PM
0
0
Tue, 30 May  12 AM
0
0
Tue, 30 May  01 AM
0
0
Tue, 30 May  02 AM
0
0
Tue, 30 May  03 AM
0
0
Tue, 30 May  04 AM
0
0
Tue, 30 May  05 AM
0
0
Tue, 30 May  06 AM
0
0
Tue, 30 May  07 AM
0
0
Tue, 30 May  08 AM
0
0
Tue, 30 May  09 AM
0
0
Tue, 30 May  10 AM
0
0
Tue, 30 May  11 AM
0
0
Tue, 30 May  12 PM
0
0
Tue, 30 May  01 PM
0
0
Tue, 30 May  02 PM
0
0
Tue, 30 May  03 PM
0
0
Tue, 30 May  04 PM
0
0
Tue, 30 May  05 PM
0
0
Tue, 30 May  06 PM
0
0
Tue, 30 May  07 PM
0
0
Tue, 30 May  08 PM
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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