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 11/29, 4Z)
39
35
*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
Fri, 28 Nov  03 PM
38
33
Fri, 28 Nov  04 PM
35
34
Fri, 28 Nov  05 PM
31
35
Fri, 28 Nov  06 PM
29
35
Fri, 28 Nov   07 PM
26
34
Fri, 28 Nov   08 PM
23
32
Fri, 28 Nov   09 PM
21
30
Fri, 28 Nov   10 PM
19
28
Fri, 28 Nov   11 PM
18
25
Sat, 29 Nov   12 AM
16
23
Sat, 29 Nov   01 AM
15
21
Sat, 29 Nov   02 AM
14
19
Sat, 29 Nov   03 AM
12
17
Sat, 29 Nov   04 AM
11
16
Sat, 29 Nov   05 AM
10
14
Sat, 29 Nov   06 AM
13
14
Sat, 29 Nov   07 AM
14
13
Sat, 29 Nov   08 AM
13
13
Sat, 29 Nov   09 AM
14
13
Sat, 29 Nov   10 AM
18
13
Sat, 29 Nov   11 AM
23
14
Sat, 29 Nov   12 PM
25
16
Sat, 29 Nov   01 PM
26
18
Sat, 29 Nov   02 PM
26
20
Sat, 29 Nov   03 PM
26
22
Sat, 29 Nov   04 PM
25
23
Sat, 29 Nov   05 PM
24
24
Sat, 29 Nov   06 PM
23
25
Sat, 29 Nov   07 PM
23
25
Sat, 29 Nov   08 PM
25
25
Sat, 29 Nov   09 PM
28
25
Sat, 29 Nov   10 PM
29
25
Sat, 29 Nov   11 PM
30
26
Sun, 30 Nov   12 AM
30
26
Sun, 30 Nov   01 AM
29
27
Sun, 30 Nov   02 AM
30
28
Sun, 30 Nov   03 AM
28
29
Sun, 30 Nov   04 AM
26
29
Sun, 30 Nov   05 AM
24
28
Sun, 30 Nov   06 AM
25
28
Sun, 30 Nov   07 AM
25
27
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Fri, 28 Nov  03 PM
0
0
Fri, 28 Nov  04 PM
0
0
Fri, 28 Nov  05 PM
0
0
Fri, 28 Nov  06 PM
0
0
Fri, 28 Nov  07 PM
0
0
Fri, 28 Nov  08 PM
0
0
Fri, 28 Nov  09 PM
0
0
Fri, 28 Nov  10 PM
0
0
Fri, 28 Nov  11 PM
0
0
Sat, 29 Nov  12 AM
0
0
Sat, 29 Nov  01 AM
0
0
Sat, 29 Nov  02 AM
0
0
Sat, 29 Nov  03 AM
0
0
Sat, 29 Nov  04 AM
0
0
Sat, 29 Nov  05 AM
0
0
Sat, 29 Nov  06 AM
0
0
Sat, 29 Nov  07 AM
0
0
Sat, 29 Nov  08 AM
0
0
Sat, 29 Nov  09 AM
0
0
Sat, 29 Nov  10 AM
0
0
Sat, 29 Nov  11 AM
0
0
Sat, 29 Nov  12 PM
0
0
Sat, 29 Nov  01 PM
0
0
Sat, 29 Nov  02 PM
0
0
Sat, 29 Nov  03 PM
0
0
Sat, 29 Nov  04 PM
0
0
Sat, 29 Nov  05 PM
0
0
Sat, 29 Nov  06 PM
0
0
Sat, 29 Nov  07 PM
0
0
Sat, 29 Nov  08 PM
0
0
Sat, 29 Nov  09 PM
0
0
Sat, 29 Nov  10 PM
0
0
Sat, 29 Nov  11 PM
0
0
Sun, 30 Nov  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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