For 4/26/2024
[ The forecast is updated daily by 3:30 pm EDT. ]
As of Thursday afternoon, all forecast regions are trending towards a code green finish with the exception of the Catawba, CSRA and Upstate regions, which are trending towards a code yellow finish. For Friday, high pressure both at the surface and aloft will begin to take told. Patchy cloud cover though the day is expected for the majority of the state, with clearer skies at the coast and partly sunny in the Northern regions of the state. An Easterly gentle breeze will bring an influx of surface moisture into the state raising dew points. Very clean air from over the Atlantic will be advected into South Carolina. These environmental conditions are expected to impede surface ozone production. Overall, all forecast regions are forecast to finish in code GREEN on Friday.
| County * |
Color Code |
AQI |
| Abbeville |
Good (Green) |
42 |
| Aiken |
Good (Green) |
40 |
| Anderson |
Good (Green) |
42 |
| Barnwell |
Good (Green) |
40 |
| Berkeley |
Good (Green) |
44 |
| Calhoun |
Good (Green) |
40 |
| Charleston |
Good (Green) |
44 |
| Cherokee |
Good (Green) |
42 |
| Chester |
Good (Green) |
47 |
| Chesterfield |
Good (Green) |
44 |
| Darlington |
Good (Green) |
44 |
| Dillon |
Good (Green) |
44 |
| Dorchester |
Good (Green) |
44 |
| Edgefield |
Good (Green) |
40 |
| Fairfield |
Good (Green) |
40 |
| Florence |
Good (Green) |
44 |
| Greenville |
Good (Green) |
42 |
| Greenwood |
Good (Green) |
42 |
| Kershaw |
Good (Green) |
40 |
| Lancaster |
Good (Green) |
47 |
| Laurens |
Good (Green) |
42 |
| Lee |
Good (Green) |
44 |
| Lexington |
Good (Green) |
40 |
| Marlboro |
Good (Green) |
44 |
| McCormick |
Good (Green) |
40 |
| Newberry |
Good (Green) |
40 |
| Oconee |
Good (Green) |
42 |
| Pickens |
Good (Green) |
42 |
| Richland |
Good (Green) |
40 |
| Saluda |
Good (Green) |
40 |
| Spartanburg |
Good (Green) |
42 |
| Sumter |
Good (Green) |
40 |
| Union |
Good (Green) |
42 |
| York |
Good (Green) |
47 |
| GA-Columbia |
Good (Green) |
40 |
| GA-Richmond |
Good (Green) |
40 |
| * 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.
|
