South Carolina Ground-level Ozone Forecast

For 4/8/2020

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

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Overall ozone levels are trending in the high GREEN threshold this Tuesday afternoon, with an isolated low YELLOW possible in the midlands region. The Palmetto State will likely remain under the eastern edge of a broad high pressure ridge covering a large portion of the Gulf Coast states. The jet stream is forecast to remain oriented northwest to southeast across the Carolinas which will prevent a significant influx of moisture from Gulf coast and the drier conditions will likely prevail. A westerly wind flow, however, will likely persist across the state into Wednesday and observations show that the air mass being brought by these winds should be a little cleaner. Ozone levels will likely remain GREEN statewide Wednesday.
County * Color Code AQI
Abbeville Good (Green) 48
Aiken Good (Green) 45
Anderson Good (Green) 48
Barnwell Good (Green) 45
Berkeley Good (Green) 43
Calhoun Good (Green) 45
Charleston Good (Green) 43
Cherokee Good (Green) 48
Chester Good (Green) 46
Chesterfield Good (Green) 46
Darlington Good (Green) 46
Dillon Good (Green) 46
Dorchester Good (Green) 43
Edgefield Good (Green) 45
Fairfield Good (Green) 45
Florence Good (Green) 46
Greenville Good (Green) 48
Greenwood Good (Green) 48
Kershaw Good (Green) 45
Lancaster Good (Green) 46
Laurens Good (Green) 48
Lee Good (Green) 46
Lexington Good (Green) 45
Marlboro Good (Green) 46
McCormick Good (Green) 45
Newberry Good (Green) 45
Oconee Good (Green) 48
Pickens Good (Green) 48
Richland Good (Green) 45
Saluda Good (Green) 45
Spartanburg Good (Green) 48
Sumter Good (Green) 45
Union Good (Green) 48
York Good (Green) 46
GA-Columbia Good (Green) 45
GA-Richmond Good (Green) 45
* 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.