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 09/01, 4Z)
36
35
*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, 31 Aug  06 PM
36
35
Mon, 31 Aug  07 PM
35
35
Mon, 31 Aug  08 PM
33
35
Mon, 31 Aug  09 PM
30
34
Mon, 31 Aug  10 PM
29
34
Mon, 31 Aug  11 PM
28
33
Tue, 01 Sep  12 AM
26
32
Tue, 01 Sep  01 AM
24
30
Tue, 01 Sep  02 AM
23
29
Tue, 01 Sep  03 AM
21
27
Tue, 01 Sep  04 AM
20
25
Tue, 01 Sep  05 AM
19
24
Tue, 01 Sep  06 AM
18
22
Tue, 01 Sep  07 AM
17
21
Tue, 01 Sep  08 AM
18
20
Tue, 01 Sep  09 AM
21
20
Tue, 01 Sep  10 AM
26
20
Tue, 01 Sep  11 AM
31
21
Tue, 01 Sep  12 PM
33
23
Tue, 01 Sep  01 PM
34
25
Tue, 01 Sep  02 PM
35
27
Tue, 01 Sep  03 PM
36
29
Tue, 01 Sep  04 PM
37
32
Tue, 01 Sep   05 PM
37
34
Tue, 01 Sep   06 PM
38
35
Tue, 01 Sep   07 PM
38
36
Tue, 01 Sep   08 PM
35
36
Tue, 01 Sep   09 PM
30
36
Tue, 01 Sep   10 PM
26
35
Tue, 01 Sep   11 PM
25
33
Wed, 02 Sep   12 AM
24
32
Wed, 02 Sep   01 AM
25
30
Wed, 02 Sep   02 AM
27
29
Wed, 02 Sep   03 AM
26
27
Wed, 02 Sep   04 AM
23
26
Wed, 02 Sep   05 AM
22
25
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, 31 Aug  06 PM
0
0
Mon, 31 Aug  07 PM
0
0
Mon, 31 Aug  08 PM
0
0
Mon, 31 Aug  09 PM
0
0
Mon, 31 Aug  10 PM
0
0
Mon, 31 Aug  11 PM
0
0
Tue, 01 Sep  12 AM
0
0
Tue, 01 Sep  01 AM
0
0
Tue, 01 Sep  02 AM
0
0
Tue, 01 Sep  03 AM
0
0
Tue, 01 Sep  04 AM
0
0
Tue, 01 Sep  05 AM
0
0
Tue, 01 Sep  06 AM
0
0
Tue, 01 Sep  07 AM
0
0
Tue, 01 Sep  08 AM
0
0
Tue, 01 Sep  09 AM
0
0
Tue, 01 Sep  10 AM
0
0
Tue, 01 Sep  11 AM
0
0
Tue, 01 Sep  12 PM
0
0
Tue, 01 Sep  01 PM
0
0
Tue, 01 Sep  02 PM
0
0
Tue, 01 Sep  03 PM
0
0
Tue, 01 Sep  04 PM
1
0
Tue, 01 Sep  05 PM
0
0
Tue, 01 Sep  06 PM
0
0
Tue, 01 Sep  07 PM
0
0
Tue, 01 Sep  08 PM
0
0
Tue, 01 Sep  09 PM
0
0
Tue, 01 Sep  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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