Live National Weather Service alerts, NEXRAD weather radar, USGS river and stream gauges, Storm Prediction Center convective outlooks, Local Storm Reports, 5-day forecast, air quality, and severe-weather notifications for Charleston County, SC (FIPS 45019) in South Carolina. Free, no login, no ads.
Charleston County, SC is one of the counties of South Carolina covered by BloomWX. Charleston County, SC has a population of approximately 409,840 (2022 estimate, US Census Bureau). The county covers 918 square miles of land area. The county seat is Charleston.
Charleston, North Charleston, Mount Pleasant, James Island, Hollywood.
Charleston County, SC is served by the National Weather Service CHS forecast office for warnings, watches, advisories, and decision-support services. The same office produces the Hazardous Weather Outlook, Area Forecast Discussion, and DSS briefing packets you'll see on the BloomWX dashboard for this county.
BloomWX also covers the surrounding counties: Dorchester County, SC, Berkeley County, SC, Colleton County, SC, Georgetown County, SC.
BloomWX is a free weather operations dashboard for SKYWARN storm spotters, emergency management volunteers, ham radio nets, and anyone in Charleston County, SC who needs the official NWS data without the consumer-app cruft. Data is pulled directly from weather.gov and refreshes every 60 seconds. Sources: National Weather Service, Storm Prediction Center, USGS Water Data, NOAA Space Weather Prediction Center, Open-Meteo (Air Quality), and the Citizen Weather Observer Program.
Read the BloomWX learn library for beginner-friendly explainers on every dashboard surface, including SPC convective outlooks (TSTM/MRGL/SLGT/ENH/MDT/HIGH), NEXRAD radar, USGS flood gauges, and WPC surface analysis charts. See all South Carolina county weather dashboards on BloomWX.