Air Quality Forecast Guidance for Keswick, CA

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 40.61 N, longitude: 122.46 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 09/21, 4Z)
46
42
*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
Mon, 21 Sep  12 AM
19
32
Mon, 21 Sep  01 AM
20
29
Mon, 21 Sep  02 AM
17
25
Mon, 21 Sep  03 AM
17
22
Mon, 21 Sep  04 AM
18
21
Mon, 21 Sep  05 AM
18
20
Mon, 21 Sep  06 AM
20
19
Mon, 21 Sep  07 AM
21
19
Mon, 21 Sep  08 AM
21
19
Mon, 21 Sep  09 AM
19
19
Mon, 21 Sep  10 AM
26
20
Mon, 21 Sep  11 AM
38
23
Mon, 21 Sep  12 PM
49
26
Mon, 21 Sep  01 PM
55
31
Mon, 21 Sep  02 PM
53
35
Mon, 21 Sep  03 PM
53
39
Mon, 21 Sep  04 PM
46
42
Mon, 21 Sep   05 PM
53
47
Mon, 21 Sep   06 PM
57
51
Mon, 21 Sep   07 PM
48
52
Mon, 21 Sep   08 PM
33
50
Mon, 21 Sep   09 PM
27
46
Mon, 21 Sep   10 PM
28
43
Mon, 21 Sep   11 PM
24
40
Tue, 22 Sep   12 AM
20
36
Tue, 22 Sep   01 AM
20
32
Tue, 22 Sep   02 AM
21
28
Tue, 22 Sep   03 AM
22
24
Tue, 22 Sep   04 AM
20
23
Tue, 22 Sep   05 AM
19
22
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Mon, 21 Sep  12 AM
0
47
Mon, 21 Sep  01 AM
0
132
Mon, 21 Sep  02 AM
99
191
Mon, 21 Sep  03 AM
55
210
Mon, 21 Sep  04 AM
0
214
Mon, 21 Sep  05 AM
6
186
Mon, 21 Sep  06 AM
0
154
Mon, 21 Sep  07 AM
18
139
Mon, 21 Sep  08 AM
11
142
Mon, 21 Sep  09 AM
10
131
Mon, 21 Sep  10 AM
3
141
Mon, 21 Sep  11 AM
0
177
Mon, 21 Sep  12 PM
0
214
Mon, 21 Sep  01 PM
102
232
Mon, 21 Sep  02 PM
194
212
Mon, 21 Sep  03 PM
279
259
Mon, 21 Sep  04 PM
299
427
Mon, 21 Sep  05 PM
312
513
Mon, 21 Sep  06 PM
251
518
Mon, 21 Sep  07 PM
97
510
Mon, 21 Sep  08 PM
3
449
Mon, 21 Sep  09 PM
0
385
Mon, 21 Sep  10 PM
0
282

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Environmental Protection Agency AirNow Forecast Page
Graphical Air Quality Forecast Guidance
FAQ


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