Awendaw, South Carolina Air Quality
The nearest monitor to Awendaw, at Cape Romain, 7 miles away, measured an index of 26 at Tue, 11:00 AM EDT, which is Good for ground-level ozone. South Carolina DES forecasts Good for Charleston today. NOAA’s analysts drew light wildfire smoke over the town today.
- Measured now
- 26 · Good
- Today
- 36 · Good
- Tomorrow
- Not forecast
- Pollutant
- Ozone
Fine particles on the map
Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Awendaw, South Carolina. Open it for the live map, where it pans and zooms.
Open the live map with the particulate forecast
Map layer from NOAA National Air Quality Forecast Capability. Boundaries from the Iowa Environmental Mesonet.
Alerts in force
An Air Quality Alert is issued by the National Weather Service on behalf of a state or local agency when pollution is expected to reach a level that harms health. An Air Stagnation Advisory means the air will not move enough to clear what is already in it.
None are in force near Awendaw right now. All South Carolina warnings.
Now
Good
- Nearest monitor
- Cape Romain, 7 miles away (site 450190046)
- Index measured
- 26 · Good
- Measured at
- Tue, 11:00 AM EDT
- Fine particles
- 3.2 µg/m³
- Ozone
- 32 ppb
- Reporting area
- Charleston, SC, 26 miles away
- Reported by
- South Carolina DES
- Area index
- 43 · Good
Measured, not modeled. AirNow observations are preliminary until the operating agency certifies them, which happens months later.
Today and tomorrow
South Carolina DES's own forecast for Charleston, written by a forecaster rather than read off a model.
| Day | Category | Index | Pollutant |
|---|---|---|---|
| Today | Good | 36 | Ozone |
The forecaster’s discussion
Written by South Carolina DES for Charleston and filed with AirNow.
As of Monday afternoon, the Upstate region is trending toward code yellow territory, while all other forecast regions are trending toward a code green finish. The weather pattern will begin to change across South Carolina on Tuesday afternoon as the persistent high pressure that has dominated the region gradually weakens. Temperatures will remain above normal, with afternoon highs reaching the upper 80s to lower 90s across much of the state. Increasing moisture, along with an approaching weather disturbance and cold front, will support scattered showers and thunderstorms during the afternoon and evening - commencing initially across the Upstate region and propagating southeast’ward across the state through the evening. Increasing cloud cover and thunderstorm activity should help limit ozone formation during the latter half of the day. Cooler and drier conditions are expected to gradually arrive by mid to late week. Overall, the Upstate and Catawba regions are forecast to peak in CODE YELLOW, while all other forecast regions are expected to peak CODE GREEN.
Hour by hour
NOAA’s air quality model could not be read for this point just now. It runs twice a day and covers the lower 48, Alaska and Hawaii.
Smoke
NOAA’s Hazard Mapping System analysts drew light smoke over Awendaw in satellite imagery today (Tue, 9:00 AM EDT to Tue, 11:00 AM EDT). That is smoke seen from above; it is not always smoke at ground level.
NOAA’s model forecasts no measurable smoke near the ground here over the next two days.
What this means
Good
Air quality is satisfactory, and air pollution poses little or no risk.
- Who is affected
- Nobody is expected to be affected.
- What to do
- It is a good day to be outside.
- Index range
- 0 to 50
Category descriptions are the Environmental Protection Agency’s own.
What these numbers are. An index beside a monitor’s name is a measurement, published hourly by AirNow and preliminary until the operating agency certifies it. A category for today or tomorrow is a state or local agency forecaster’s own forecast for a reporting area. An hourly index is NOAA’s air quality model on a five-kilometer grid, not a reading from any instrument. Where a town has no monitor within reach, only the model figures appear, and the page says so.
Nearby
The nearest towns with a page of their own, closest first.
Weather forecast for AwendawWarnings in Charleston CountyLive radar over AwendawSouth Carolina air quality
Sources
Observations and daily forecasts from AirNow, the US Environmental Protection Agency’s program with NOAA, the National Park Service, NASA, tribal, state and local agencies. Hourly forecasts from NOAA’s National Air Quality Forecast Capability. Smoke analysis from NOAA’s Hazard Mapping System. Alerts from the National Weather Service. Index categories and breakpoints are EPA’s, as revised in 2024.