Air Quality Forecast Guidance for Lake Arrowhead, CA

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 34.25 N, longitude: 117.21 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 05/13, 4Z)
103
90
*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
Wed, 12 May  09 AM
49
40
Wed, 12 May  10 AM
58
42
Wed, 12 May  11 AM
59
44
Wed, 12 May  12 PM
62
48
Wed, 12 May  01 PM
70
52
Wed, 12 May  02 PM
79
57
Wed, 12 May  03 PM
86
63
Wed, 12 May  04 PM
90
69
Wed, 12 May   05 PM
98
75
Wed, 12 May   06 PM
104
81
Wed, 12 May   07 PM
98
86
Wed, 12 May   08 PM
88
89
Wed, 12 May   09 PM
74
90
Wed, 12 May   10 PM
76
89
Wed, 12 May   11 PM
69
87
Thu, 13 May   12 AM
60
83
Thu, 13 May   01 AM
57
78
Thu, 13 May   02 AM
52
72
Thu, 13 May   03 AM
53
66
Thu, 13 May   04 AM
47
61
Thu, 13 May   05 AM
46
58
Thu, 13 May   06 AM
44
54
Thu, 13 May   07 AM
41
50
Thu, 13 May   08 AM
43
48
Thu, 13 May   09 AM
48
47
Thu, 13 May   10 AM
58
47
Thu, 13 May   11 AM
62
49
Thu, 13 May   12 PM
66
51
Thu, 13 May   01 PM
73
54
Thu, 13 May   02 PM
76
58
Thu, 13 May   03 PM
75
63
Thu, 13 May   04 PM
76
67
Thu, 13 May   05 PM
76
70
Thu, 13 May   06 PM
78
73
Thu, 13 May   07 PM
79
75
Thu, 13 May   08 PM
75
76
Thu, 13 May   09 PM
67
75
Thu, 13 May   10 PM
69
74
Thu, 13 May   11 PM
62
73
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, 12 May  09 AM
0
0
Wed, 12 May  10 AM
0
0
Wed, 12 May  11 AM
0
0
Wed, 12 May  12 PM
0
0
Wed, 12 May  01 PM
0
0
Wed, 12 May  02 PM
0
0
Wed, 12 May  03 PM
0
0
Wed, 12 May  04 PM
0
0
Wed, 12 May  05 PM
0
0
Wed, 12 May  06 PM
0
0
Wed, 12 May  07 PM
0
0
Wed, 12 May  08 PM
0
0
Wed, 12 May  09 PM
0
0
Wed, 12 May  10 PM
0
0
Wed, 12 May  11 PM
0
0
Thu, 13 May  12 AM
0
0
Thu, 13 May  01 AM
0
0
Thu, 13 May  02 AM
0
0
Thu, 13 May  03 AM
0
0
Thu, 13 May  04 AM
0
0
Thu, 13 May  05 AM
0
0
Thu, 13 May  06 AM
0
0
Thu, 13 May  07 AM
0
0
Thu, 13 May  08 AM
0
0
Thu, 13 May  09 AM
0
0
Thu, 13 May  10 AM
0
0
Thu, 13 May  11 AM
0
0
Thu, 13 May  12 PM
0
0
Thu, 13 May  01 PM
0
0
Thu, 13 May  02 PM
0
0
Thu, 13 May  03 PM
0
0
Thu, 13 May  04 PM
0
0
Thu, 13 May  05 PM
0
0
Thu, 13 May  06 PM
0
0
Thu, 13 May  07 PM
0
0
Thu, 13 May  08 PM
0
0
Thu, 13 May  09 PM
0
0
Thu, 13 May  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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