For 4/27/2024
[ The forecast is updated daily by 3:30 pm EDT. ]
As of Friday afternoon, all forecast regions are trending towards a code green finish. For Saturday conditions look to remain much of the same. The dominant features are again the high pressure in the region both at the surface and aloft. This is driving the Easterly gentle breeze that is expected across the state and steering the onshore flow. Partly sunny skies are anticipated in the morning, with clouds rolling in from the West and transitioning to overcast conditions by midday. A largely clean airmass will continue to be advected into the state. Overall, all forecast regions are projected to peak in code GREEN for Saturday.
| County * |
Color Code |
AQI |
| Abbeville |
Good (Green) |
40 |
| Aiken |
Good (Green) |
44 |
| Anderson |
Good (Green) |
40 |
| Barnwell |
Good (Green) |
44 |
| Berkeley |
Good (Green) |
47 |
| Calhoun |
Good (Green) |
44 |
| Charleston |
Good (Green) |
47 |
| Cherokee |
Good (Green) |
40 |
| Chester |
Good (Green) |
40 |
| Chesterfield |
Good (Green) |
43 |
| Darlington |
Good (Green) |
43 |
| Dillon |
Good (Green) |
43 |
| Dorchester |
Good (Green) |
47 |
| Edgefield |
Good (Green) |
44 |
| Fairfield |
Good (Green) |
44 |
| Florence |
Good (Green) |
43 |
| Greenville |
Good (Green) |
40 |
| Greenwood |
Good (Green) |
40 |
| Kershaw |
Good (Green) |
44 |
| Lancaster |
Good (Green) |
40 |
| Laurens |
Good (Green) |
40 |
| Lee |
Good (Green) |
43 |
| Lexington |
Good (Green) |
44 |
| Marlboro |
Good (Green) |
43 |
| McCormick |
Good (Green) |
44 |
| Newberry |
Good (Green) |
44 |
| Oconee |
Good (Green) |
40 |
| Pickens |
Good (Green) |
40 |
| Richland |
Good (Green) |
44 |
| Saluda |
Good (Green) |
44 |
| Spartanburg |
Good (Green) |
40 |
| Sumter |
Good (Green) |
44 |
| Union |
Good (Green) |
40 |
| York |
Good (Green) |
40 |
| GA-Columbia |
Good (Green) |
44 |
| GA-Richmond |
Good (Green) |
44 |
| * 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.
|
