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Air Quality Forecast Guidance for Hillsboro, OR

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 45.52 N, longitude: 122.99 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 04/20, 4Z)
34
33
*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, 19 Apr  01 PM
33
22
Sat, 19 Apr  02 PM
34
25
Sat, 19 Apr  03 PM
33
28
Sat, 19 Apr  04 PM
33
30
Sat, 19 Apr   05 PM
34
32
Sat, 19 Apr   06 PM
33
32
Sat, 19 Apr   07 PM
33
33
Sat, 19 Apr   08 PM
33
33
Sat, 19 Apr   09 PM
33
33
Sat, 19 Apr   10 PM
33
33
Sat, 19 Apr   11 PM
32
33
Sun, 20 Apr   12 AM
31
33
Sun, 20 Apr   01 AM
30
32
Sun, 20 Apr   02 AM
29
32
Sun, 20 Apr   03 AM
27
31
Sun, 20 Apr   04 AM
27
30
Sun, 20 Apr   05 AM
27
29
Sun, 20 Apr   06 AM
24
28
Sun, 20 Apr   07 AM
20
27
Sun, 20 Apr   08 AM
19
25
Sun, 20 Apr   09 AM
21
24
Sun, 20 Apr   10 AM
29
24
Sun, 20 Apr   11 AM
37
25
Sun, 20 Apr   12 PM
41
27
Sun, 20 Apr   01 PM
43
29
Sun, 20 Apr   02 PM
44
32
Sun, 20 Apr   03 PM
44
35
Sun, 20 Apr   04 PM
44
38
Sun, 20 Apr   05 PM
43
40
Sun, 20 Apr   06 PM
40
42
Sun, 20 Apr   07 PM
38
42
Sun, 20 Apr   08 PM
34
41
Sun, 20 Apr   09 PM
33
40
Sun, 20 Apr   10 PM
33
39
Sun, 20 Apr   11 PM
33
37
Mon, 21 Apr   12 AM
32
36
Mon, 21 Apr   01 AM
32
34
Mon, 21 Apr   02 AM
31
33
Mon, 21 Apr   03 AM
30
32
Mon, 21 Apr   04 AM
29
31
Mon, 21 Apr   05 AM
27
31
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, 19 Apr  10 AM
0
0
Sat, 19 Apr  11 AM
0
0
Sat, 19 Apr  12 PM
0
0
Sat, 19 Apr  01 PM
0
0
Sat, 19 Apr  02 PM
0
0
Sat, 19 Apr  03 PM
0
0
Sat, 19 Apr  04 PM
0
0
Sat, 19 Apr  05 PM
0
0
Sat, 19 Apr  06 PM
0
0
Sat, 19 Apr  07 PM
0
0
Sat, 19 Apr  08 PM
0
0
Sat, 19 Apr  09 PM
0
0
Sat, 19 Apr  10 PM
0
0
Sat, 19 Apr  11 PM
0
0
Sun, 20 Apr  12 AM
0
0
Sun, 20 Apr  01 AM
0
0
Sun, 20 Apr  02 AM
0
0
Sun, 20 Apr  03 AM
0
0
Sun, 20 Apr  04 AM
0
0
Sun, 20 Apr  05 AM
0
0
Sun, 20 Apr  06 AM
0
0
Sun, 20 Apr  07 AM
0
0
Sun, 20 Apr  08 AM
0
0
Sun, 20 Apr  09 AM
0
0
Sun, 20 Apr  10 AM
0
0
Sun, 20 Apr  11 AM
0
0
Sun, 20 Apr  12 PM
0
0
Sun, 20 Apr  01 PM
0
0
Sun, 20 Apr  02 PM
0
0
Sun, 20 Apr  03 PM
0
0
Sun, 20 Apr  04 PM
0
0
Sun, 20 Apr  05 PM
0
0
Sun, 20 Apr  06 PM
0
0
Sun, 20 Apr  07 PM
0
0
Sun, 20 Apr  08 PM
0
0
Sun, 20 Apr  09 PM
0
0
Sun, 20 Apr  10 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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