South Carolina Ground-level Ozone Forecast

For 5/25/2019

[ The forecast is updated daily by 3:30 pm EDT. ]

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We should see a mixture of CODE GREEN and CODE YELLOW for ground-level ozone this Friday afternoon. The upper-level ridge over the southeastern part of the country continues to build over the region and it should continue building on Saturday. This may make air stagnation a potential problem in the Palmetto State. Northwesterly winds should be quite weak early, then become light and variable in the afternoon. With mostly sunny skies and hot conditions, ozone concentrations should remain elevated statewide. Thus, all zones should be at CODE YELLOW on Saturday.
County * Color Code AQI
Abbeville Moderate (Yellow) 54
Aiken Moderate (Yellow) 54
Anderson Moderate (Yellow) 54
Barnwell Moderate (Yellow) 54
Berkeley Moderate (Yellow) 74
Calhoun Moderate (Yellow) 71
Charleston Moderate (Yellow) 74
Cherokee Moderate (Yellow) 54
Chester Moderate (Yellow) 51
Chesterfield Moderate (Yellow) 51
Darlington Moderate (Yellow) 51
Dillon Moderate (Yellow) 51
Dorchester Moderate (Yellow) 74
Edgefield Moderate (Yellow) 54
Fairfield Moderate (Yellow) 71
Florence Moderate (Yellow) 51
Greenville Moderate (Yellow) 54
Greenwood Moderate (Yellow) 54
Kershaw Moderate (Yellow) 71
Lancaster Moderate (Yellow) 51
Laurens Moderate (Yellow) 54
Lee Moderate (Yellow) 51
Lexington Moderate (Yellow) 71
Marlboro Moderate (Yellow) 51
McCormick Moderate (Yellow) 54
Newberry Moderate (Yellow) 71
Oconee Moderate (Yellow) 54
Pickens Moderate (Yellow) 54
Richland Moderate (Yellow) 71
Saluda Moderate (Yellow) 71
Spartanburg Moderate (Yellow) 54
Sumter Moderate (Yellow) 71
Union Moderate (Yellow) 54
York Moderate (Yellow) 51
GA-Columbia Moderate (Yellow) 54
GA-Richmond Moderate (Yellow) 54
* Ozone forecasts are not issued for counties not listed in this table.
AQI Color Code (Value) Cautionary Statement

Good
(0-50)

No health effects are expected.

Moderate
(51-100)

Unusually sensitive people should consider limiting prolonged outdoor exertion.

Unhealthy for Sensitive Groups
(101-150)

The following groups should limit prolonged outdoor exertion:

  • People with lung disease, such as asthma
  • Children and older adults
  • People who are active outdoors

Unhealthy
(151-200)

The following groups should avoid prolonged outdoor exertion:

  • People with lung disease, such as asthma
  • Children and older adults
  • People who are active outdoors

Everyone else should limit prolonged outdoor exertion.

Very Unhealthy
(200+)

The following groups should avoid all outdoor exertion:

  • People with lung disease, such as asthma
  • Children and older adults
  • People who are active outdoors

Everyone else should limit outdoor exertion.