Air Quality Forecast Guidance for Knollwood, TX

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 33.72 N, longitude: 96.67 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 08/17, 4Z)
59
55
*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
Tue, 16 Aug  09 AM
21
17
Tue, 16 Aug  10 AM
35
18
Tue, 16 Aug  11 AM
45
21
Tue, 16 Aug  12 PM
47
25
Tue, 16 Aug  01 PM
50
30
Tue, 16 Aug  02 PM
52
34
Tue, 16 Aug  03 PM
52
39
Tue, 16 Aug  04 PM
52
44
Tue, 16 Aug  05 PM
53
48
Tue, 16 Aug  06 PM
55
51
Tue, 16 Aug   07 PM
57
52
Tue, 16 Aug   08 PM
59
54
Tue, 16 Aug   09 PM
56
55
Tue, 16 Aug   10 PM
48
54
Tue, 16 Aug   11 PM
42
53
Wed, 17 Aug   12 AM
35
51
Wed, 17 Aug   01 AM
30
48
Wed, 17 Aug   02 AM
21
43
Wed, 17 Aug   03 AM
16
38
Wed, 17 Aug   04 AM
12
32
Wed, 17 Aug   05 AM
11
27
Wed, 17 Aug   06 AM
10
22
Wed, 17 Aug   07 AM
8
18
Wed, 17 Aug   08 AM
7
14
Wed, 17 Aug   09 AM
16
13
Wed, 17 Aug   10 AM
25
13
Wed, 17 Aug   11 AM
36
16
Wed, 17 Aug   12 PM
46
20
Wed, 17 Aug   01 PM
50
25
Wed, 17 Aug   02 PM
49
30
Wed, 17 Aug   03 PM
48
35
Wed, 17 Aug   04 PM
47
40
Wed, 17 Aug   05 PM
47
44
Wed, 17 Aug   06 PM
48
46
Wed, 17 Aug   07 PM
49
48
Wed, 17 Aug   08 PM
49
48
Wed, 17 Aug   09 PM
46
48
Wed, 17 Aug   10 PM
42
47
Wed, 17 Aug   11 PM
40
46
Thu, 18 Aug   12 AM
34
44
Thu, 18 Aug   01 AM
32
42
Thu, 18 Aug   02 AM
31
40
Thu, 18 Aug   03 AM
32
38
Thu, 18 Aug   04 AM
33
36
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Tue, 16 Aug  08 AM
0
0
Tue, 16 Aug  09 AM
0
0
Tue, 16 Aug  10 AM
0
0
Tue, 16 Aug  11 AM
0
0
Tue, 16 Aug  12 PM
0
0
Tue, 16 Aug  01 PM
0
0
Tue, 16 Aug  02 PM
0
0
Tue, 16 Aug  03 PM
0
0
Tue, 16 Aug  04 PM
0
0
Tue, 16 Aug  05 PM
0
0
Tue, 16 Aug  06 PM
0
0
Tue, 16 Aug  07 PM
0
0
Tue, 16 Aug  08 PM
0
0
Tue, 16 Aug  09 PM
0
0
Tue, 16 Aug  10 PM
0
0
Tue, 16 Aug  11 PM
0
0
Wed, 17 Aug  12 AM
0
0
Wed, 17 Aug  01 AM
0
0
Wed, 17 Aug  02 AM
0
0
Wed, 17 Aug  03 AM
0
0
Wed, 17 Aug  04 AM
0
0
Wed, 17 Aug  05 AM
0
0
Wed, 17 Aug  06 AM
0
0
Wed, 17 Aug  07 AM
0
0
Wed, 17 Aug  08 AM
0
0
Wed, 17 Aug  09 AM
0
0
Wed, 17 Aug  10 AM
0
0
Wed, 17 Aug  11 AM
0
0
Wed, 17 Aug  12 PM
0
0
Wed, 17 Aug  01 PM
0
0
Wed, 17 Aug  02 PM
0
0
Wed, 17 Aug  03 PM
0
0
Wed, 17 Aug  04 PM
0
0
Wed, 17 Aug  05 PM
0
0
Wed, 17 Aug  06 PM
0
0
Wed, 17 Aug  07 PM
0
0
Wed, 17 Aug  08 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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