Air Quality Forecast Guidance for Thurmont, MD

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 39.62 N, longitude: 77.41 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 07/27, 4Z)
72
66
*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, 26 Jul  04 PM
68
58
Tue, 26 Jul  05 PM
72
62
Tue, 26 Jul  06 PM
71
65
Tue, 26 Jul  07 PM
66
66
Tue, 26 Jul   08 PM
60
66
Tue, 26 Jul   09 PM
55
65
Tue, 26 Jul   10 PM
49
63
Tue, 26 Jul   11 PM
43
60
Wed, 27 Jul   12 AM
38
57
Wed, 27 Jul   01 AM
35
52
Wed, 27 Jul   02 AM
32
47
Wed, 27 Jul   03 AM
29
42
Wed, 27 Jul   04 AM
26
38
Wed, 27 Jul   05 AM
22
34
Wed, 27 Jul   06 AM
20
31
Wed, 27 Jul   07 AM
19
28
Wed, 27 Jul   08 AM
18
25
Wed, 27 Jul   09 AM
22
24
Wed, 27 Jul   10 AM
26
23
Wed, 27 Jul   11 AM
35
24
Wed, 27 Jul   12 PM
46
26
Wed, 27 Jul   01 PM
49
30
Wed, 27 Jul   02 PM
52
34
Wed, 27 Jul   03 PM
54
38
Wed, 27 Jul   04 PM
58
43
Wed, 27 Jul   05 PM
60
48
Wed, 27 Jul   06 PM
61
52
Wed, 27 Jul   07 PM
56
55
Wed, 27 Jul   08 PM
48
55
Wed, 27 Jul   09 PM
43
54
Wed, 27 Jul   10 PM
40
53
Wed, 27 Jul   11 PM
38
51
Thu, 28 Jul   12 AM
37
48
Thu, 28 Jul   01 AM
35
45
Thu, 28 Jul   02 AM
34
42
Thu, 28 Jul   03 AM
31
38
Thu, 28 Jul   04 AM
28
36
Thu, 28 Jul   05 AM
26
34
Thu, 28 Jul   06 AM
24
32
Thu, 28 Jul   07 AM
24
30
Thu, 28 Jul   08 AM
26
29
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, 26 Jul  02 PM
0
1
Tue, 26 Jul  03 PM
0
1
Tue, 26 Jul  04 PM
0
0
Tue, 26 Jul  05 PM
0
0
Tue, 26 Jul  06 PM
0
0
Tue, 26 Jul  07 PM
0
0
Tue, 26 Jul  08 PM
0
0
Tue, 26 Jul  09 PM
0
0
Tue, 26 Jul  10 PM
0
0
Tue, 26 Jul  11 PM
0
0
Wed, 27 Jul  12 AM
0
0
Wed, 27 Jul  01 AM
0
0
Wed, 27 Jul  02 AM
0
0
Wed, 27 Jul  03 AM
0
0
Wed, 27 Jul  04 AM
0
0
Wed, 27 Jul  05 AM
0
0
Wed, 27 Jul  06 AM
0
0
Wed, 27 Jul  07 AM
0
0
Wed, 27 Jul  08 AM
0
0
Wed, 27 Jul  09 AM
0
0
Wed, 27 Jul  10 AM
0
0
Wed, 27 Jul  11 AM
0
0
Wed, 27 Jul  12 PM
0
0
Wed, 27 Jul  01 PM
0
0
Wed, 27 Jul  02 PM
0
0
Wed, 27 Jul  03 PM
0
0
Wed, 27 Jul  04 PM
0
0
Wed, 27 Jul  05 PM
0
0
Wed, 27 Jul  06 PM
0
0
Wed, 27 Jul  07 PM
0
0
Wed, 27 Jul  08 PM
0
0
Wed, 27 Jul  09 PM
0
0
Wed, 27 Jul  10 PM
0
0
Wed, 27 Jul  11 PM
0
0
Thu, 28 Jul  12 AM
0
0
Thu, 28 Jul  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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