Air Quality Forecast Guidance for Longmont, CO

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 40.17 N, longitude: 105.11 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 03/30, 4Z)
56
50
*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, 29 Mar  10 AM
38
20
Wed, 29 Mar  11 AM
43
21
Wed, 29 Mar  12 PM
45
23
Wed, 29 Mar  01 PM
47
27
Wed, 29 Mar  02 PM
49
32
Wed, 29 Mar  03 PM
51
38
Wed, 29 Mar  04 PM
54
44
Wed, 29 Mar  05 PM
55
48
Wed, 29 Mar   06 PM
55
50
Wed, 29 Mar   07 PM
48
51
Wed, 29 Mar   08 PM
33
49
Wed, 29 Mar   09 PM
22
46
Wed, 29 Mar   10 PM
16
42
Wed, 29 Mar   11 PM
14
37
Thu, 30 Mar   12 AM
13
32
Thu, 30 Mar   01 AM
13
27
Thu, 30 Mar   02 AM
13
22
Thu, 30 Mar   03 AM
13
17
Thu, 30 Mar   04 AM
13
15
Thu, 30 Mar   05 AM
13
14
Thu, 30 Mar   06 AM
11
13
Thu, 30 Mar   07 AM
8
12
Thu, 30 Mar   08 AM
9
12
Thu, 30 Mar   09 AM
16
12
Thu, 30 Mar   10 AM
27
14
Thu, 30 Mar   11 AM
32
16
Thu, 30 Mar   12 PM
40
20
Thu, 30 Mar   01 PM
48
24
Thu, 30 Mar   02 PM
53
29
Thu, 30 Mar   03 PM
55
35
Thu, 30 Mar   04 PM
55
41
Thu, 30 Mar   05 PM
53
45
Thu, 30 Mar   06 PM
51
48
Thu, 30 Mar   07 PM
47
50
Thu, 30 Mar   08 PM
45
51
Thu, 30 Mar   09 PM
41
50
Thu, 30 Mar   10 PM
33
47
Thu, 30 Mar   11 PM
28
44
Fri, 31 Mar   12 AM
32
41
Fri, 31 Mar   01 AM
40
40
Fri, 31 Mar   02 AM
39
38
Fri, 31 Mar   03 AM
39
37
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 Mar  10 AM
0
0
Wed, 29 Mar  11 AM
0
0
Wed, 29 Mar  12 PM
0
0
Wed, 29 Mar  01 PM
0
0
Wed, 29 Mar  02 PM
0
0
Wed, 29 Mar  03 PM
0
0
Wed, 29 Mar  04 PM
0
0
Wed, 29 Mar  05 PM
0
0
Wed, 29 Mar  06 PM
0
0
Wed, 29 Mar  07 PM
0
0
Wed, 29 Mar  08 PM
0
0
Wed, 29 Mar  09 PM
0
0
Wed, 29 Mar  10 PM
0
0
Wed, 29 Mar  11 PM
0
0
Thu, 30 Mar  12 AM
0
0
Thu, 30 Mar  01 AM
0
0
Thu, 30 Mar  02 AM
0
0
Thu, 30 Mar  03 AM
0
0
Thu, 30 Mar  04 AM
0
0
Thu, 30 Mar  05 AM
0
0
Thu, 30 Mar  06 AM
0
0
Thu, 30 Mar  07 AM
0
0
Thu, 30 Mar  08 AM
0
0
Thu, 30 Mar  09 AM
0
0
Thu, 30 Mar  10 AM
0
0
Thu, 30 Mar  11 AM
0
0
Thu, 30 Mar  12 PM
0
0
Thu, 30 Mar  01 PM
0
0
Thu, 30 Mar  02 PM
0
0
Thu, 30 Mar  03 PM
0
0
Thu, 30 Mar  04 PM
0
0
Thu, 30 Mar  05 PM
0
0
Thu, 30 Mar  06 PM
0
0
Thu, 30 Mar  07 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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