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)
59
55
*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, 28 Jul  12 AM
42
47
Thu, 28 Jul  01 AM
41
45
Thu, 28 Jul  02 AM
42
43
Thu, 28 Jul  03 AM
45
42
Thu, 28 Jul  04 AM
46
42
Thu, 28 Jul  05 AM
47
43
Thu, 28 Jul  06 AM
49
44
Thu, 28 Jul  07 AM
51
45
Thu, 28 Jul  08 AM
50
46
Thu, 28 Jul  09 AM
49
47
Thu, 28 Jul  10 AM
50
48
Thu, 28 Jul  11 AM
53
49
Thu, 28 Jul  12 PM
58
51
Thu, 28 Jul  01 PM
62
53
Thu, 28 Jul  02 PM
63
55
Thu, 28 Jul  03 PM
64
56
Thu, 28 Jul  04 PM
61
58
Thu, 28 Jul  05 PM
54
58
Thu, 28 Jul  06 PM
48
58
Thu, 28 Jul  07 PM
43
57
Thu, 28 Jul   08 PM
41
54
Thu, 28 Jul   09 PM
40
52
Thu, 28 Jul   10 PM
45
49
Thu, 28 Jul   11 PM
47
47
Fri, 29 Jul   12 AM
45
45
Fri, 29 Jul   01 AM
43
44
Fri, 29 Jul   02 AM
42
43
Fri, 29 Jul   03 AM
40
43
Fri, 29 Jul   04 AM
39
42
Fri, 29 Jul   05 AM
39
42
Fri, 29 Jul   06 AM
42
42
Fri, 29 Jul   07 AM
44
42
Fri, 29 Jul   08 AM
42
41
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, 28 Jul  12 AM
0
0
Thu, 28 Jul  01 AM
0
0
Thu, 28 Jul  02 AM
0
0
Thu, 28 Jul  03 AM
0
0
Thu, 28 Jul  04 AM
0
0
Thu, 28 Jul  05 AM
0
0
Thu, 28 Jul  06 AM
0
0
Thu, 28 Jul  07 AM
0
0
Thu, 28 Jul  08 AM
0
0
Thu, 28 Jul  09 AM
0
0
Thu, 28 Jul  10 AM
0
0
Thu, 28 Jul  11 AM
0
0
Thu, 28 Jul  12 PM
0
0
Thu, 28 Jul  01 PM
0
0
Thu, 28 Jul  02 PM
0
0
Thu, 28 Jul  03 PM
0
0
Thu, 28 Jul  04 PM
0
0
Thu, 28 Jul  05 PM
0
0
Thu, 28 Jul  06 PM
0
0
Thu, 28 Jul  07 PM
0
0
Thu, 28 Jul  08 PM
0
0
Thu, 28 Jul  09 PM
0
0
Thu, 28 Jul  10 PM
0
0
Thu, 28 Jul  11 PM
0
0
Fri, 29 Jul  12 AM
0
0
Fri, 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