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 05/06, 4Z)
42
36
*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
Thu, 05 May  05 PM
38
31
Thu, 05 May  06 PM
39
32
Thu, 05 May  07 PM
39
34
Thu, 05 May   08 PM
36
35
Thu, 05 May   09 PM
32
35
Thu, 05 May   10 PM
31
35
Thu, 05 May   11 PM
33
36
Fri, 06 May   12 AM
38
36
Fri, 06 May   01 AM
38
36
Fri, 06 May   02 AM
38
36
Fri, 06 May   03 AM
36
35
Fri, 06 May   04 AM
34
35
Fri, 06 May   05 AM
33
35
Fri, 06 May   06 AM
32
35
Fri, 06 May   07 AM
31
35
Fri, 06 May   08 AM
30
34
Fri, 06 May   09 AM
34
34
Fri, 06 May   10 AM
37
33
Fri, 06 May   11 AM
37
34
Fri, 06 May   12 PM
39
34
Fri, 06 May   01 PM
42
35
Fri, 06 May   02 PM
43
36
Fri, 06 May   03 PM
42
38
Fri, 06 May   04 PM
41
39
Fri, 06 May   05 PM
39
40
Fri, 06 May   06 PM
34
40
Fri, 06 May   07 PM
31
39
Fri, 06 May   08 PM
30
38
Fri, 06 May   09 PM
27
36
Fri, 06 May   10 PM
25
34
Fri, 06 May   11 PM
25
31
Sat, 07 May   12 AM
27
30
Sat, 07 May   01 AM
26
28
Sat, 07 May   02 AM
23
27
Sat, 07 May   03 AM
21
25
Sat, 07 May   04 AM
19
24
Sat, 07 May   05 AM
17
23
Sat, 07 May   06 AM
16
22
Sat, 07 May   07 AM
17
21
Sat, 07 May   08 AM
19
20
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Thu, 05 May  05 PM
0
0
Thu, 05 May  06 PM
0
0
Thu, 05 May  07 PM
0
0
Thu, 05 May  08 PM
0
0
Thu, 05 May  09 PM
0
0
Thu, 05 May  10 PM
0
0
Thu, 05 May  11 PM
0
0
Fri, 06 May  12 AM
0
0
Fri, 06 May  01 AM
0
0
Fri, 06 May  02 AM
0
0
Fri, 06 May  03 AM
0
0
Fri, 06 May  04 AM
0
0
Fri, 06 May  05 AM
0
0
Fri, 06 May  06 AM
0
0
Fri, 06 May  07 AM
0
0
Fri, 06 May  08 AM
0
0
Fri, 06 May  09 AM
0
0
Fri, 06 May  10 AM
0
0
Fri, 06 May  11 AM
0
0
Fri, 06 May  12 PM
0
0
Fri, 06 May  01 PM
0
0
Fri, 06 May  02 PM
0
0
Fri, 06 May  03 PM
0
0
Fri, 06 May  04 PM
0
0
Fri, 06 May  05 PM
0
0
Fri, 06 May  06 PM
0
0
Fri, 06 May  07 PM
0
0
Fri, 06 May  08 PM
0
0
Fri, 06 May  09 PM
0
0
Fri, 06 May  10 PM
0
0
Fri, 06 May  11 PM
0
0
Sat, 07 May  12 AM
0
0
Sat, 07 May  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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