Air Quality Forecast Guidance for Harpers Ferry, WV

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 39.32 N, longitude: 77.74 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 07/28, 4Z)
57
53
*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, 27 Jul  09 PM
42
52
Mon, 27 Jul  10 PM
37
50
Mon, 27 Jul  11 PM
32
47
Tue, 28 Jul  12 AM
29
44
Tue, 28 Jul  01 AM
29
41
Tue, 28 Jul  02 AM
28
37
Tue, 28 Jul  03 AM
26
34
Tue, 28 Jul  04 AM
24
31
Tue, 28 Jul  05 AM
22
28
Tue, 28 Jul  06 AM
21
26
Tue, 28 Jul  07 AM
19
25
Tue, 28 Jul  08 AM
18
24
Tue, 28 Jul  09 AM
20
22
Tue, 28 Jul  10 AM
36
23
Tue, 28 Jul  11 AM
55
27
Tue, 28 Jul  12 PM
64
32
Tue, 28 Jul  01 PM
67
38
Tue, 28 Jul  02 PM
68
43
Tue, 28 Jul  03 PM
69
50
Tue, 28 Jul  04 PM
70
56
Tue, 28 Jul  05 PM
71
62
Tue, 28 Jul  06 PM
72
67
Tue, 28 Jul  07 PM
68
68
Tue, 28 Jul   08 PM
59
68
Tue, 28 Jul   09 PM
52
66
Tue, 28 Jul   10 PM
48
64
Tue, 28 Jul   11 PM
45
61
Wed, 29 Jul   12 AM
47
58
Wed, 29 Jul   01 AM
50
55
Wed, 29 Jul   02 AM
49
52
Wed, 29 Jul   03 AM
45
50
Wed, 29 Jul   04 AM
45
48
Wed, 29 Jul   05 AM
44
47
Wed, 29 Jul   06 AM
40
46
Wed, 29 Jul   07 AM
37
45
Wed, 29 Jul   08 AM
36
43
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, 27 Jul  09 PM
0
0
Mon, 27 Jul  10 PM
0
0
Mon, 27 Jul  11 PM
0
0
Tue, 28 Jul  12 AM
0
0
Tue, 28 Jul  01 AM
0
0
Tue, 28 Jul  02 AM
0
0
Tue, 28 Jul  03 AM
0
0
Tue, 28 Jul  04 AM
0
0
Tue, 28 Jul  05 AM
0
0
Tue, 28 Jul  06 AM
0
0
Tue, 28 Jul  07 AM
0
0
Tue, 28 Jul  08 AM
0
0
Tue, 28 Jul  09 AM
0
0
Tue, 28 Jul  10 AM
0
0
Tue, 28 Jul  11 AM
0
0
Tue, 28 Jul  12 PM
0
0
Tue, 28 Jul  01 PM
0
0
Tue, 28 Jul  02 PM
0
0
Tue, 28 Jul  03 PM
0
0
Tue, 28 Jul  04 PM
0
0
Tue, 28 Jul  05 PM
0
0
Tue, 28 Jul  06 PM
0
0
Tue, 28 Jul  07 PM
0
0
Tue, 28 Jul  08 PM
0
0
Tue, 28 Jul  09 PM
0
0
Tue, 28 Jul  10 PM
0
0
Tue, 28 Jul  11 PM
0
0
Wed, 29 Jul  12 AM
0
0
Wed, 29 Jul  01 AM
0
0

National Weather Service Air Quality Program Page
Environmental Protection Agency AirNow Forecast Page
Graphical Air Quality Forecast Guidance
FAQ


    US Dept of Commerce
    National Oceanic and Atmospheric Administration
    National Weather Service
    1325 East West Highway
    Silver Spring, MD 20910
    Page Author: NWS Internet Services Team
Disclaimer
Information Quality
Credits
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities