Air Quality Forecast Guidance for Friday Harbor, WA

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 48.68 N, longitude: 123.20 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 10/19, 4Z)
29
26
*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
Mon, 18 Oct  09 AM
6
15
Mon, 18 Oct  10 AM
11
13
Mon, 18 Oct  11 AM
15
12
Mon, 18 Oct  12 PM
16
12
Mon, 18 Oct  01 PM
18
12
Mon, 18 Oct  02 PM
19
13
Mon, 18 Oct  03 PM
20
14
Mon, 18 Oct  04 PM
21
16
Mon, 18 Oct   05 PM
23
18
Mon, 18 Oct   06 PM
26
20
Mon, 18 Oct   07 PM
27
21
Mon, 18 Oct   08 PM
28
23
Mon, 18 Oct   09 PM
29
24
Mon, 18 Oct   10 PM
24
25
Mon, 18 Oct   11 PM
23
25
Tue, 19 Oct   12 AM
21
25
Tue, 19 Oct   01 AM
18
24
Tue, 19 Oct   02 AM
17
23
Tue, 19 Oct   03 AM
16
22
Tue, 19 Oct   04 AM
11
20
Tue, 19 Oct   05 AM
7
17
Tue, 19 Oct   06 AM
5
15
Tue, 19 Oct   07 AM
5
12
Tue, 19 Oct   08 AM
3
10
Tue, 19 Oct   09 AM
5
9
Tue, 19 Oct   10 AM
9
8
Tue, 19 Oct   11 AM
13
7
Tue, 19 Oct   12 PM
15
8
Tue, 19 Oct   01 PM
17
9
Tue, 19 Oct   02 PM
18
11
Tue, 19 Oct   03 PM
19
12
Tue, 19 Oct   04 PM
21
15
Tue, 19 Oct   05 PM
24
17
Tue, 19 Oct   06 PM
23
19
Tue, 19 Oct   07 PM
22
20
Tue, 19 Oct   08 PM
23
21
Tue, 19 Oct   09 PM
22
22
Tue, 19 Oct   10 PM
19
22
Tue, 19 Oct   11 PM
17
21
Wed, 20 Oct   12 AM
16
21
Wed, 20 Oct   01 AM
14
20
Wed, 20 Oct   02 AM
14
18
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, 18 Oct  09 AM
0
0
Mon, 18 Oct  10 AM
0
0
Mon, 18 Oct  11 AM
0
0
Mon, 18 Oct  12 PM
0
0
Mon, 18 Oct  01 PM
0
0
Mon, 18 Oct  02 PM
0
0
Mon, 18 Oct  03 PM
0
0
Mon, 18 Oct  04 PM
0
0
Mon, 18 Oct  05 PM
0
0
Mon, 18 Oct  06 PM
0
0
Mon, 18 Oct  07 PM
0
0
Mon, 18 Oct  08 PM
0
0
Mon, 18 Oct  09 PM
0
0
Mon, 18 Oct  10 PM
0
0
Mon, 18 Oct  11 PM
0
0
Tue, 19 Oct  12 AM
0
0
Tue, 19 Oct  01 AM
0
0
Tue, 19 Oct  02 AM
0
1
Tue, 19 Oct  03 AM
0
1
Tue, 19 Oct  04 AM
0
1
Tue, 19 Oct  05 AM
0
1
Tue, 19 Oct  06 AM
0
2
Tue, 19 Oct  07 AM
0
4
Tue, 19 Oct  08 AM
0
7
Tue, 19 Oct  09 AM
0
4
Tue, 19 Oct  10 AM
0
4
Tue, 19 Oct  11 AM
0
4
Tue, 19 Oct  12 PM
0
4
Tue, 19 Oct  01 PM
0
4
Tue, 19 Oct  02 PM
1
3
Tue, 19 Oct  03 PM
1
2
Tue, 19 Oct  04 PM
3
2
Tue, 19 Oct  05 PM
3
2
Tue, 19 Oct  06 PM
6
3
Tue, 19 Oct  07 PM
5
2
Tue, 19 Oct  08 PM
3
1
Tue, 19 Oct  09 PM
2
1
Tue, 19 Oct  10 PM
3
2

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


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