Air Quality Forecast Guidance

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 47.59 N, longitude: 123.29 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 06/10, 4Z)
27
23
*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
Fri, 09 Jun  11 AM
9
10
Fri, 09 Jun  12 PM
10
9
Fri, 09 Jun  01 PM
9
9
Fri, 09 Jun  02 PM
8
9
Fri, 09 Jun  03 PM
9
8
Fri, 09 Jun  04 PM
9
9
Fri, 09 Jun   05 PM
10
9
Fri, 09 Jun   06 PM
13
10
Fri, 09 Jun   07 PM
16
10
Fri, 09 Jun   08 PM
21
12
Fri, 09 Jun   09 PM
25
14
Fri, 09 Jun   10 PM
26
16
Fri, 09 Jun   11 PM
24
18
Sat, 10 Jun   12 AM
22
20
Sat, 10 Jun   01 AM
22
21
Sat, 10 Jun   02 AM
22
22
Sat, 10 Jun   03 AM
22
23
Sat, 10 Jun   04 AM
22
23
Sat, 10 Jun   05 AM
21
23
Sat, 10 Jun   06 AM
21
22
Sat, 10 Jun   07 AM
18
21
Sat, 10 Jun   08 AM
13
20
Sat, 10 Jun   09 AM
12
19
Sat, 10 Jun   10 AM
12
18
Sat, 10 Jun   11 AM
15
17
Sat, 10 Jun   12 PM
19
16
Sat, 10 Jun   01 PM
20
16
Sat, 10 Jun   02 PM
21
16
Sat, 10 Jun   03 PM
22
17
Sat, 10 Jun   04 PM
22
18
Sat, 10 Jun   05 PM
23
19
Sat, 10 Jun   06 PM
24
21
Sat, 10 Jun   07 PM
26
22
Sat, 10 Jun   08 PM
30
24
Sat, 10 Jun   09 PM
33
25
Sat, 10 Jun   10 PM
30
26
Sat, 10 Jun   11 PM
27
27
Sun, 11 Jun   12 AM
25
27
Sun, 11 Jun   01 AM
23
27
Sun, 11 Jun   02 AM
22
27
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)
06Z Model Run
Fri, 09 Jun  11 AM
0
0
Fri, 09 Jun  12 PM
0
0
Fri, 09 Jun  01 PM
0
0
Fri, 09 Jun  02 PM
0
0
Fri, 09 Jun  03 PM
0
0
Fri, 09 Jun  04 PM
0
0
Fri, 09 Jun  05 PM
0
0
Fri, 09 Jun  06 PM
0
0
Fri, 09 Jun  07 PM
0
0
Fri, 09 Jun  08 PM
0
0
Fri, 09 Jun  09 PM
0
0
Fri, 09 Jun  10 PM
0
0
Fri, 09 Jun  11 PM
0
0
Sat, 10 Jun  12 AM
0
0
Sat, 10 Jun  01 AM
0
0
Sat, 10 Jun  02 AM
0
0
Sat, 10 Jun  03 AM
0
0
Sat, 10 Jun  04 AM
0
0
Sat, 10 Jun  05 AM
0
0
Sat, 10 Jun  06 AM
0
0
Sat, 10 Jun  07 AM
0
0
Sat, 10 Jun  08 AM
0
0
Sat, 10 Jun  09 AM
0
0
Sat, 10 Jun  10 AM
0
0
Sat, 10 Jun  11 AM
0
0
Sat, 10 Jun  12 PM
0
0
Sat, 10 Jun  01 PM
0
0
Sat, 10 Jun  02 PM
0
0
Sat, 10 Jun  03 PM
0
0
Sat, 10 Jun  04 PM
0
0
Sat, 10 Jun  05 PM
0
0
Sat, 10 Jun  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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