Air Quality Forecast Guidance for Index, WA

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 47.99 N, longitude: 121.47 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 08/01, 4Z)
45
40
*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
Sat, 31 Jul  09 PM
39
39
Sat, 31 Jul  10 PM
37
40
Sat, 31 Jul  11 PM
35
40
Sun, 01 Aug  12 AM
31
39
Sun, 01 Aug  01 AM
29
38
Sun, 01 Aug  02 AM
31
36
Sun, 01 Aug  03 AM
28
34
Sun, 01 Aug  04 AM
24
32
Sun, 01 Aug  05 AM
20
29
Sun, 01 Aug  06 AM
23
28
Sun, 01 Aug  07 AM
24
26
Sun, 01 Aug  08 AM
24
26
Sun, 01 Aug  09 AM
23
25
Sun, 01 Aug  10 AM
21
23
Sun, 01 Aug  11 AM
20
23
Sun, 01 Aug  12 PM
27
23
Sun, 01 Aug  01 PM
34
25
Sun, 01 Aug  02 PM
37
26
Sun, 01 Aug  03 PM
37
28
Sun, 01 Aug  04 PM
37
30
Sun, 01 Aug   05 PM
38
31
Sun, 01 Aug   06 PM
43
34
Sun, 01 Aug   07 PM
50
38
Sun, 01 Aug   08 PM
52
41
Sun, 01 Aug   09 PM
50
43
Sun, 01 Aug   10 PM
48
44
Sun, 01 Aug   11 PM
46
46
Mon, 02 Aug   12 AM
43
46
Mon, 02 Aug   01 AM
40
47
Mon, 02 Aug   02 AM
40
46
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Sat, 31 Jul  09 PM
0
212
Sat, 31 Jul  10 PM
0
195
Sat, 31 Jul  11 PM
0
181
Sun, 01 Aug  12 AM
0
205
Sun, 01 Aug  01 AM
0
301
Sun, 01 Aug  02 AM
0
447
Sun, 01 Aug  03 AM
887
352
Sun, 01 Aug  04 AM
991
231
Sun, 01 Aug  05 AM
123
233
Sun, 01 Aug  06 AM
0
334
Sun, 01 Aug  07 AM
0
234
Sun, 01 Aug  08 AM
0
288
Sun, 01 Aug  09 AM
0
291
Sun, 01 Aug  10 AM
0
286
Sun, 01 Aug  11 AM
0
231
Sun, 01 Aug  12 PM
0
177
Sun, 01 Aug  01 PM
0
92
Sun, 01 Aug  02 PM
153
44
Sun, 01 Aug  03 PM
7
28
Sun, 01 Aug  04 PM
46
46
Sun, 01 Aug  05 PM
0
53
Sun, 01 Aug  06 PM
0
145
Sun, 01 Aug  07 PM
0
273
Sun, 01 Aug  08 PM
0
355
Sun, 01 Aug  09 PM
0
461
Sun, 01 Aug  10 PM
0
434

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


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