Air Quality Forecast Guidance for Friday Harbor, WA

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 48.71 N, longitude: 122.91 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 09/27, 4Z)
38
34
*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)
6Z Model Run
8 Hour Average Ozone
Concentration (PPB)
6Z Model Run
Tue, 26 Sep  07 AM
28
31
Tue, 26 Sep  08 AM
26
30
Tue, 26 Sep  09 AM
25
29
Tue, 26 Sep  10 AM
24
28
Tue, 26 Sep  11 AM
26
27
Tue, 26 Sep  12 PM
29
27
Tue, 26 Sep  01 PM
31
27
Tue, 26 Sep  02 PM
33
28
Tue, 26 Sep  03 PM
33
28
Tue, 26 Sep  04 PM
33
29
Tue, 26 Sep   05 PM
31
30
Tue, 26 Sep   06 PM
33
31
Tue, 26 Sep   07 PM
35
32
Tue, 26 Sep   08 PM
36
33
Tue, 26 Sep   09 PM
36
34
Tue, 26 Sep   10 PM
34
34
Tue, 26 Sep   11 PM
33
34
Wed, 27 Sep   12 AM
34
34
Wed, 27 Sep   01 AM
30
34
Wed, 27 Sep   02 AM
25
33
Wed, 27 Sep   03 AM
21
31
Wed, 27 Sep   04 AM
20
29
Wed, 27 Sep   05 AM
20
27
Wed, 27 Sep   06 AM
19
25
Wed, 27 Sep   07 AM
18
23
Wed, 27 Sep   08 AM
14
21
Wed, 27 Sep   09 AM
11
18
Wed, 27 Sep   10 AM
12
17
Wed, 27 Sep   11 AM
14
16
Wed, 27 Sep   12 PM
14
15
Wed, 27 Sep   01 PM
14
14
Wed, 27 Sep   02 PM
14
14
Wed, 27 Sep   03 PM
18
14
Wed, 27 Sep   04 PM
29
16
Wed, 27 Sep   05 PM
34
18
Wed, 27 Sep   06 PM
33
21
Wed, 27 Sep   07 PM
30
23
Wed, 27 Sep   08 PM
25
24
Wed, 27 Sep   09 PM
22
25
Wed, 27 Sep   10 PM
23
27
Wed, 27 Sep   11 PM
24
27
Thu, 28 Sep   12 AM
24
27
Thu, 28 Sep   01 AM
22
25
Thu, 28 Sep   02 AM
24
24
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 Sep  05 AM
0
0
Tue, 26 Sep  06 AM
0
0
Tue, 26 Sep  07 AM
0
0
Tue, 26 Sep  08 AM
0
0
Tue, 26 Sep  09 AM
0
0
Tue, 26 Sep  10 AM
0
0
Tue, 26 Sep  11 AM
0
0
Tue, 26 Sep  12 PM
0
0
Tue, 26 Sep  01 PM
0
0
Tue, 26 Sep  02 PM
0
0
Tue, 26 Sep  03 PM
0
0
Tue, 26 Sep  04 PM
0
0
Tue, 26 Sep  05 PM
0
0
Tue, 26 Sep  06 PM
0
0
Tue, 26 Sep  07 PM
0
0
Tue, 26 Sep  08 PM
0
0
Tue, 26 Sep  09 PM
0
0
Tue, 26 Sep  10 PM
0
0
Tue, 26 Sep  11 PM
0
0
Wed, 27 Sep  12 AM
0
0
Wed, 27 Sep  01 AM
0
0
Wed, 27 Sep  02 AM
0
0
Wed, 27 Sep  03 AM
0
0
Wed, 27 Sep  04 AM
0
0
Wed, 27 Sep  05 AM
0
0
Wed, 27 Sep  06 AM
0
0
Wed, 27 Sep  07 AM
0
0
Wed, 27 Sep  08 AM
0
0
Wed, 27 Sep  09 AM
0
0
Wed, 27 Sep  10 AM
0
0
Wed, 27 Sep  11 AM
0
0
Wed, 27 Sep  12 PM
0
0
Wed, 27 Sep  01 PM
0
0
Wed, 27 Sep  02 PM
0
0
Wed, 27 Sep  03 PM
0
0
Wed, 27 Sep  04 PM
0
0
Wed, 27 Sep  05 PM
0
0
Wed, 27 Sep  06 PM
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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