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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 04/21, 4Z)
41
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)

6Z Model Run
8 Hour Average Ozone
Concentration (PPB)

6Z Model Run
Sun, 20 Apr  08 AM
24
25
Sun, 20 Apr  09 AM
25
25
Sun, 20 Apr  10 AM
30
26
Sun, 20 Apr  11 AM
36
27
Sun, 20 Apr  12 PM
39
28
Sun, 20 Apr  01 PM
40
30
Sun, 20 Apr  02 PM
40
32
Sun, 20 Apr  03 PM
40
34
Sun, 20 Apr  04 PM
40
36
Sun, 20 Apr   05 PM
40
38
Sun, 20 Apr   06 PM
39
39
Sun, 20 Apr   07 PM
37
40
Sun, 20 Apr   08 PM
33
39
Sun, 20 Apr   09 PM
32
38
Sun, 20 Apr   10 PM
31
36
Sun, 20 Apr   11 PM
29
35
Mon, 21 Apr   12 AM
28
34
Mon, 21 Apr   01 AM
27
32
Mon, 21 Apr   02 AM
27
30
Mon, 21 Apr   03 AM
27
29
Mon, 21 Apr   04 AM
26
28
Mon, 21 Apr   05 AM
26
28
Mon, 21 Apr   06 AM
25
27
Mon, 21 Apr   07 AM
23
26
Mon, 21 Apr   08 AM
23
25
Mon, 21 Apr   09 AM
26
25
Mon, 21 Apr   10 AM
27
25
Mon, 21 Apr   11 AM
28
26
Mon, 21 Apr   12 PM
33
26
Mon, 21 Apr   01 PM
35
28
Mon, 21 Apr   02 PM
36
29
Mon, 21 Apr   03 PM
35
30
Mon, 21 Apr   04 PM
36
32
Mon, 21 Apr   05 PM
36
33
Mon, 21 Apr   06 PM
36
34
Mon, 21 Apr   07 PM
36
35
Mon, 21 Apr   08 PM
35
36
Mon, 21 Apr   09 PM
33
35
Mon, 21 Apr   10 PM
33
35
Mon, 21 Apr   11 PM
33
35
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
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
Sun, 20 Apr  11 PM
0
0
Mon, 21 Apr  12 AM
0
0
Mon, 21 Apr  01 AM
0
0
Mon, 21 Apr  02 AM
0
0
Mon, 21 Apr  03 AM
0
0
Mon, 21 Apr  04 AM
0
0
Mon, 21 Apr  05 AM
0
0
Mon, 21 Apr  06 AM
0
0
Mon, 21 Apr  07 AM
0
0
Mon, 21 Apr  08 AM
0
0
Mon, 21 Apr  09 AM
0
0
Mon, 21 Apr  10 AM
0
0
Mon, 21 Apr  11 AM
0
0
Mon, 21 Apr  12 PM
0
0
Mon, 21 Apr  01 PM
0
0
Mon, 21 Apr  02 PM
0
0
Mon, 21 Apr  03 PM
0
0
Mon, 21 Apr  04 PM
0
0
Mon, 21 Apr  05 PM
0
0
Mon, 21 Apr  06 PM
0
0
Mon, 21 Apr  07 PM
0
0
Mon, 21 Apr  08 PM
0
0
Mon, 21 Apr  09 PM
0
0
Mon, 21 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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