NOAA - National Weather Service/Environmental Protection Agency

Air Quality Forecast Guidance for Piedmont, AL

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 33.98 N, longitude: 85.53 W. Ozone concentrations are presented in parts per billion (PPB).
Public comments and suggestions are encouraged.
A FAQ page is available.
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24Hr Maximum Ending	Maximum 1 Hour Average Ozone Concentration (PPB)*	Maximum 8 Hour Average Ozone Concentration (PPB)*
Tomorrow (Ending 05/18, 4Z)	52	49

*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
Wed, 18 May 05 AM	14	19
Wed, 18 May 06 AM	14	17
Wed, 18 May 07 AM	13	16
Wed, 18 May 08 AM	21	16
Wed, 18 May 09 AM	36	18
Wed, 18 May 10 AM	44	22
Wed, 18 May 11 AM	46	25
Wed, 18 May 12 PM	48	29
Wed, 18 May 01 PM	49	34
Wed, 18 May 02 PM	49	38
Wed, 18 May 03 PM	49	43
Wed, 18 May 04 PM	49	46
Wed, 18 May 05 PM	49	48
Wed, 18 May 06 PM	48	48
Wed, 18 May 07 PM	42	48
Wed, 18 May 08 PM	35	46
Wed, 18 May 09 PM	27	43
Wed, 18 May 10 PM	22	40
Wed, 18 May 11 PM	20	36
Thu, 19 May 12 AM	18	33
Thu, 19 May 01 AM	19	29
Thu, 19 May 02 AM	21	25
Thu, 19 May 03 AM	17	22
Thu, 19 May 04 AM	15	20

Smoke Ending Time (Local Time)	1 Hour Surface Smoke (µg/m³) 06Z Model Run	1 Hour Column-Integrated Smoke (µg/m³) 06Z Model Run
Wed, 18 May 05 AM	0	1
Wed, 18 May 06 AM	0	1
Wed, 18 May 07 AM	0	0
Wed, 18 May 08 AM	0	0
Wed, 18 May 09 AM	0	1
Wed, 18 May 10 AM	0	1
Wed, 18 May 11 AM	0	2
Wed, 18 May 12 PM	0	2
Wed, 18 May 01 PM	0	0
Wed, 18 May 02 PM	0	1
Wed, 18 May 03 PM	0	0
Wed, 18 May 04 PM	0	0
Wed, 18 May 05 PM	0	0
Wed, 18 May 06 PM	0	1
Wed, 18 May 07 PM	0	1
Wed, 18 May 08 PM	0	1
Wed, 18 May 09 PM	0	0
Wed, 18 May 10 PM	0	1
Wed, 18 May 11 PM	0	1
Thu, 19 May 12 AM	0	1


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