Air Quality Forecast Guidance for Portland, TX

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 27.79 N, longitude: 97.39 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 /, 4Z)
0
0
*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
Sun, 19 Sep  12 AM
26
34
Sun, 19 Sep  01 AM
25
33
Sun, 19 Sep  02 AM
22
30
Sun, 19 Sep  03 AM
20
28
Sun, 19 Sep  04 AM
16
26
Sun, 19 Sep  05 AM
15
23
Sun, 19 Sep  06 AM
15
21
Sun, 19 Sep  07 AM
15
19
Sun, 19 Sep  08 AM
14
18
Sun, 19 Sep  09 AM
13
16
Sun, 19 Sep  10 AM
18
16
Sun, 19 Sep  11 AM
25
16
Sun, 19 Sep  12 PM
32
18
Sun, 19 Sep  01 PM
38
21
Sun, 19 Sep  02 PM
42
25
Sun, 19 Sep  03 PM
43
28
Sun, 19 Sep  04 PM
43
32
Sun, 19 Sep  05 PM
37
35
Sun, 19 Sep  06 PM
34
37
Sun, 19 Sep   07 PM
30
37
Sun, 19 Sep   08 PM
27
37
Sun, 19 Sep   09 PM
24
35
Sun, 19 Sep   10 PM
22
33
Sun, 19 Sep   11 PM
22
30
Mon, 20 Sep   12 AM
23
27
Mon, 20 Sep   01 AM
22
26
Mon, 20 Sep   02 AM
20
24
Mon, 20 Sep   03 AM
21
23
Mon, 20 Sep   04 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

National Weather Service Air Quality Program Page
Environmental Protection Agency AirNow Forecast Page
Graphical Air Quality Forecast Guidance
FAQ


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