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 07/23, 4Z)
42
38
*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
Sat, 23 Jul  02 AM
26
33
Sat, 23 Jul  03 AM
24
31
Sat, 23 Jul  04 AM
23
29
Sat, 23 Jul  05 AM
22
27
Sat, 23 Jul  06 AM
21
26
Sat, 23 Jul  07 AM
21
24
Sat, 23 Jul  08 AM
24
24
Sat, 23 Jul  09 AM
26
23
Sat, 23 Jul  10 AM
27
23
Sat, 23 Jul  11 AM
28
24
Sat, 23 Jul  12 PM
29
25
Sat, 23 Jul  01 PM
30
26
Sat, 23 Jul  02 PM
30
27
Sat, 23 Jul  03 PM
31
28
Sat, 23 Jul  04 PM
31
29
Sat, 23 Jul   05 PM
31
30
Sat, 23 Jul   06 PM
30
30
Sat, 23 Jul   07 PM
30
30
Sat, 23 Jul   08 PM
28
30
Sat, 23 Jul   09 PM
26
30
Sat, 23 Jul   10 PM
23
29
Sat, 23 Jul   11 PM
23
28
Sun, 24 Jul   12 AM
23
27
Sun, 24 Jul   01 AM
21
26
Sun, 24 Jul   02 AM
19
24
Sun, 24 Jul   03 AM
17
22
Sun, 24 Jul   04 AM
14
21
Sun, 24 Jul   05 AM
13
19
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Sat, 23 Jul  02 AM
0
0
Sat, 23 Jul  03 AM
0
0
Sat, 23 Jul  04 AM
0
0
Sat, 23 Jul  05 AM
0
0
Sat, 23 Jul  06 AM
0
0
Sat, 23 Jul  07 AM
0
0
Sat, 23 Jul  08 AM
0
0
Sat, 23 Jul  09 AM
0
0
Sat, 23 Jul  10 AM
0
0
Sat, 23 Jul  11 AM
0
0
Sat, 23 Jul  12 PM
0
0
Sat, 23 Jul  01 PM
0
0
Sat, 23 Jul  02 PM
0
0
Sat, 23 Jul  03 PM
0
0
Sat, 23 Jul  04 PM
0
0
Sat, 23 Jul  05 PM
0
0
Sat, 23 Jul  06 PM
0
0
Sat, 23 Jul  07 PM
0
0
Sat, 23 Jul  08 PM
0
0
Sat, 23 Jul  09 PM
0
0
Sat, 23 Jul  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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