Air Quality Alert
Issued by NWS Greer, SC
Issued by NWS Greer, SC
140 AEUS72 KGSP 171857 AQAGSP Air Quality Alert Message Relayed by National Weather Service Greenville-Spartanburg SC 257 PM EDT Fri Jul 17 2026 SCZ009-014-180000- York-Chester- Including the cities of Catawba, Rock Hill, Blackstock, Chester, Cornwell, and Great Falls 257 PM EDT Fri Jul 17 2026 ...AIR QUALITY ALERT IN EFFECT UNTIL 8 PM EDT THIS EVENING... The South Carolina Department of Environmental Services (SCDES) has issued a Code Orange Ground Level Ozone Action Day for the Catawba region of South Carolina, until 8 PM EDT this evening. The South Carolina Department of Environmental Services (SCDES) has issued a Code Orange Ground Level Ozone Action Day for the Catawba region of South Carolina, through 8 PM EDT this evening. Dominant high pressure will ensure minimal cloud cover and light and variable winds. Long-range wildfire smoke will also transport ozone precursors into the area. These factors will allow for sufficient ozone production, compounding with weak dispersion characteristics of an already pollutant-loaded atmosphere. An ozone action day means that atmospheric conditions will likely produce unhealthy concentrations of ground level ozone air pollution. A Code Orange forecast indicates that ground level ozone concentrations are expected to be unhealthy for sensitive groups, which includes people with lung disease, older adults, and children. Sensitive groups should reduce prolonged or heavy outdoor exertion, take more breaks, and do less intense activities, especially during afternoon and early evening hours. You can help prevent ozone pollution by walking or riding your bicycle, taking your lunch to work, reducing idling, conserving energy, and keeping your vehicle properly tuned. For additional information, please visit the South Carolina Department of Environmental Services website at http://www.des.sc.gov/ozone or the Environmental Protection Agency AirNow website at https://www.airnow.gov. $$ NCZ037-180000- Davie- Including the cities of Farmington, Fork Church, Mocksville, and Advance 257 PM EDT Fri Jul 17 2026 ...AIR QUALITY ALERT IN EFFECT UNTIL 8 PM EDT THIS EVENING... The Forsyth County Environmental Affairs Department in Winston Salem NC has issued a Code Orange Air Quality Action Day for Ground Level Ozone for the Davie County Triad area, until 8 PM EDT this evening. An Air Quality Action Day means that Ground Level Ozone concentrations within the region may approach or exceed unhealthy standards. For additional information, please visit the Forsyth County Environmental Affairs Department Web site at https://forsyth.cc/EAP/dailyforecast.aspx. $$ NCZ070-071-180000- Gaston-Mecklenburg- Including the cities of Gastonia and Charlotte 257 PM EDT Fri Jul 17 2026 ...AIR QUALITY ALERT IN EFFECT UNTIL 8 PM EDT THIS EVENING... The North Carolina Department of Environmental Quality in Raleigh NC has issued a Code Orange Air Quality Action Day for Ground Level Ozone for Gaston and Mecklenburg Counties, until 8 PM EDT this evening. An Air Quality Action Day means that Ground Level Ozone concentrations within the region may approach or exceed unhealthy standards. For additional information, please visit the North Carolina Division of Air Quality Web site at https://airquality.climate.ncsu.edu/. $$