Air Quality Forecast Guidance for Ukiah, CA

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 39.15 N, longitude: 123.21 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 07/30, 4Z)
54
52
*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
Wed, 29 Jul  01 PM
53
43
Wed, 29 Jul  02 PM
53
46
Wed, 29 Jul  03 PM
54
48
Wed, 29 Jul  04 PM
53
51
Wed, 29 Jul   05 PM
49
52
Wed, 29 Jul   06 PM
43
51
Wed, 29 Jul   07 PM
41
50
Wed, 29 Jul   08 PM
39
48
Wed, 29 Jul   09 PM
34
46
Wed, 29 Jul   10 PM
31
43
Wed, 29 Jul   11 PM
30
40
Thu, 30 Jul   12 AM
30
37
Thu, 30 Jul   01 AM
30
35
Thu, 30 Jul   02 AM
30
33
Thu, 30 Jul   03 AM
29
32
Thu, 30 Jul   04 AM
29
30
Thu, 30 Jul   05 AM
28
30
Thu, 30 Jul   06 AM
28
29
Thu, 30 Jul   07 AM
29
29
Thu, 30 Jul   08 AM
32
29
Thu, 30 Jul   09 AM
40
31
Thu, 30 Jul   10 AM
50
33
Thu, 30 Jul   11 AM
54
36
Thu, 30 Jul   12 PM
54
39
Thu, 30 Jul   01 PM
52
42
Thu, 30 Jul   02 PM
50
45
Thu, 30 Jul   03 PM
48
47
Thu, 30 Jul   04 PM
47
49
Thu, 30 Jul   05 PM
46
50
Thu, 30 Jul   06 PM
43
49
Thu, 30 Jul   07 PM
41
48
Thu, 30 Jul   08 PM
39
46
Thu, 30 Jul   09 PM
35
44
Thu, 30 Jul   10 PM
32
41
Thu, 30 Jul   11 PM
29
39
Fri, 31 Jul   12 AM
27
36
Fri, 31 Jul   01 AM
25
34
Fri, 31 Jul   02 AM
24
31
Fri, 31 Jul   03 AM
23
29
Fri, 31 Jul   04 AM
23
27
Fri, 31 Jul   05 AM
23
26
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Wed, 29 Jul  01 PM
0
1
Wed, 29 Jul  02 PM
0
1
Wed, 29 Jul  03 PM
0
0
Wed, 29 Jul  04 PM
0
0
Wed, 29 Jul  05 PM
0
0
Wed, 29 Jul  06 PM
0
0
Wed, 29 Jul  07 PM
0
0
Wed, 29 Jul  08 PM
0
0
Wed, 29 Jul  09 PM
0
0
Wed, 29 Jul  10 PM
0
0
Wed, 29 Jul  11 PM
0
0
Thu, 30 Jul  12 AM
0
0
Thu, 30 Jul  01 AM
0
0
Thu, 30 Jul  02 AM
0
0
Thu, 30 Jul  03 AM
0
0
Thu, 30 Jul  04 AM
0
0
Thu, 30 Jul  05 AM
0
0
Thu, 30 Jul  06 AM
0
0
Thu, 30 Jul  07 AM
0
0
Thu, 30 Jul  08 AM
1
0
Thu, 30 Jul  09 AM
1
0
Thu, 30 Jul  10 AM
0
0
Thu, 30 Jul  11 AM
0
0
Thu, 30 Jul  12 PM
0
0
Thu, 30 Jul  01 PM
0
0
Thu, 30 Jul  02 PM
0
0
Thu, 30 Jul  03 PM
0
0
Thu, 30 Jul  04 PM
0
0
Thu, 30 Jul  05 PM
0
0
Thu, 30 Jul  06 PM
0
0
Thu, 30 Jul  07 PM
0
0
Thu, 30 Jul  08 PM
0
0
Thu, 30 Jul  09 PM
0
1
Thu, 30 Jul  10 PM
0
1

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


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