Air Quality Forecast Guidance for Ephrata, WA

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 47.32 N, longitude: 119.55 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 08/04, 4Z)
45
45
*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
Mon, 03 Aug  10 PM
42
42
Mon, 03 Aug  11 PM
50
43
Tue, 04 Aug  12 AM
52
44
Tue, 04 Aug  01 AM
48
45
Tue, 04 Aug  02 AM
44
45
Tue, 04 Aug  03 AM
39
44
Tue, 04 Aug  04 AM
35
44
Tue, 04 Aug  05 AM
33
43
Tue, 04 Aug  06 AM
31
41
Tue, 04 Aug  07 AM
30
39
Tue, 04 Aug  08 AM
32
36
Tue, 04 Aug  09 AM
34
35
Tue, 04 Aug  10 AM
36
34
Tue, 04 Aug  11 AM
38
34
Tue, 04 Aug  12 PM
40
34
Tue, 04 Aug  01 PM
41
35
Tue, 04 Aug  02 PM
42
37
Tue, 04 Aug  03 PM
43
38
Tue, 04 Aug  04 PM
44
40
Tue, 04 Aug   05 PM
44
41
Tue, 04 Aug   06 PM
45
42
Tue, 04 Aug   07 PM
45
43
Tue, 04 Aug   08 PM
44
44
Tue, 04 Aug   09 PM
44
44
Tue, 04 Aug   10 PM
42
44
Tue, 04 Aug   11 PM
40
43
Wed, 05 Aug   12 AM
38
43
Wed, 05 Aug   01 AM
36
42
Wed, 05 Aug   02 AM
35
40
Wed, 05 Aug   03 AM
33
39
Wed, 05 Aug   04 AM
31
37
Wed, 05 Aug   05 AM
29
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
Mon, 03 Aug  10 PM
3
2
Mon, 03 Aug  11 PM
3
3
Tue, 04 Aug  12 AM
2
4
Tue, 04 Aug  01 AM
1
4
Tue, 04 Aug  02 AM
0
4
Tue, 04 Aug  03 AM
1
1
Tue, 04 Aug  04 AM
0
0
Tue, 04 Aug  05 AM
0
0
Tue, 04 Aug  06 AM
2
0
Tue, 04 Aug  07 AM
1
0
Tue, 04 Aug  08 AM
1
0
Tue, 04 Aug  09 AM
0
0
Tue, 04 Aug  10 AM
0
0
Tue, 04 Aug  11 AM
0
0
Tue, 04 Aug  12 PM
0
0
Tue, 04 Aug  01 PM
0
0
Tue, 04 Aug  02 PM
1
0
Tue, 04 Aug  03 PM
0
0
Tue, 04 Aug  04 PM
0
0
Tue, 04 Aug  05 PM
0
0
Tue, 04 Aug  06 PM
0
0
Tue, 04 Aug  07 PM
0
0
Tue, 04 Aug  08 PM
0
0
Tue, 04 Aug  09 PM
0
0
Tue, 04 Aug  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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