Air Quality Forecast Guidance for Lake Arrowhead, CA

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 34.24 N, longitude: 117.18 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)
101
91
*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, 12 May  01 PM
76
53
Wed, 12 May  02 PM
83
59
Wed, 12 May  03 PM
90
66
Wed, 12 May  04 PM
99
73
Wed, 12 May   05 PM
101
79
Wed, 12 May   06 PM
100
84
Wed, 12 May   07 PM
94
88
Wed, 12 May   08 PM
86
91
Wed, 12 May   09 PM
73
91
Wed, 12 May   10 PM
71
89
Wed, 12 May   11 PM
64
86
Thu, 13 May   12 AM
58
81
Thu, 13 May   01 AM
56
75
Thu, 13 May   02 AM
49
69
Thu, 13 May   03 AM
47
63
Thu, 13 May   04 AM
45
58
Thu, 13 May   05 AM
44
54
Thu, 13 May   06 AM
44
51
Thu, 13 May   07 AM
41
48
Thu, 13 May   08 AM
41
46
Thu, 13 May   09 AM
48
45
Thu, 13 May   10 AM
56
46
Thu, 13 May   11 AM
61
48
Thu, 13 May   12 PM
68
51
Thu, 13 May   01 PM
75
54
Thu, 13 May   02 PM
76
58
Thu, 13 May   03 PM
76
63
Thu, 13 May   04 PM
77
67
Thu, 13 May   05 PM
79
71
Thu, 13 May   06 PM
78
74
Thu, 13 May   07 PM
75
75
Thu, 13 May   08 PM
70
76
Thu, 13 May   09 PM
56
73
Thu, 13 May   10 PM
65
72
Thu, 13 May   11 PM
60
70
Fri, 14 May   12 AM
51
67
Fri, 14 May   01 AM
52
63
Fri, 14 May   02 AM
46
59
Fri, 14 May   03 AM
43
55
Fri, 14 May   04 AM
42
52
Fri, 14 May   05 AM
43
50
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  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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