South Carolina air quality

Ware Shoals, South Carolina Air Quality

Greenwood County34.398, -82.247

The nearest monitor to Ware Shoals, at Hillcrest, 24 miles away, measured an index of 44 at Mon, 5:00 PM EDT, which is Good for ground-level ozone. South Carolina DES forecasts Moderate for Greenville-Spartanburg today and Moderate tomorrow.

Measured now
44 · Good
Today
51 · Moderate
Tomorrow
90 · Moderate
Pollutant
Ozone

Fine particles on the map

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Ware Shoals, South Carolina. Open it for the live map, where it pans and zooms.

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Ware Shoals, South Carolina 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 Ware Shoals right now. All South Carolina warnings.

Now

Good

Nearest monitor
Hillcrest, 24 miles away (site 450450016)
Index measured
44 · Good
Measured at
Mon, 5:00 PM EDT
Ozone
54 ppb
Reporting area
Greenville-Spartanburg, SC, 36 miles away
Reported by
South Carolina DES
Area index
44 · 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 Greenville-Spartanburg, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayModerate51Ozone
TomorrowModerate90Ozone

The forecaster’s discussion

Written by South Carolina DES for Greenville-Spartanburg and filed with AirNow.

As of Monday mid-afternoon, the Upstate is trending Code Yellow for ground-level ozone concentration while the remaining forecast zones are trending Code Green for the rest of the day. The upper-level trough currently over South Carolina will weaken as the surface high pressure builds, resulting in warmer conditions while maintaining a dry air mass. Abundant sunshine is probable in addition to a stable atmosphere. Temperatures are forecast to rise to slightly above normal levels with highs in the 80s and lows in the low to mid-60s. Winds are expected to either be calm or light and variable statewide, which would allow ozone pollutants to pool in their originating location. Considering how dry and stagnant the air mass would be, the lack of dispersion has the potential to be the most crucial factor toward significant ozone production. Therefore, the ozone forecast for Tuesday projects all forecast zones to peak at CODE YELLOW.

Hour by hour

NOAA’s National Air Quality Forecast Capability, bias-corrected against monitors, for this town’s own coordinate. The worst hour ahead is an index of 47, Good, around Wed, 11:00 AM EDT, from the run issued Mon, 8:00 AM EDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Mon, 7:00 PM EDT42Good3.945.5
Mon, 8:00 PM EDT42Good3.245.6
Mon, 9:00 PM EDT42Good4.145.1
Mon, 10:00 PM EDT41Good4.244
Mon, 11:00 PM EDT39Good4.342.4
Tue, 12:00 AM EDT37Good4.440.5
Tue, 1:00 AM EDT35Good4.938.1
Tue, 2:00 AM EDT32Good5.235.9
Tue, 3:00 AM EDT31Good5.934
Tue, 4:00 AM EDT32Good6.432.3
Tue, 5:00 AM EDT33Good6.230.4
Tue, 6:00 AM EDT33Good5.828.4
Tue, 7:00 AM EDT31Good5.426.3
Tue, 8:00 AM EDT29Good4.523.8
Tue, 9:00 AM EDT28Good4.721.4
Tue, 10:00 AM EDT29Good5.920.2
Tue, 11:00 AM EDT31Good621
Tue, 12:00 PM EDT30Good5.323.2
Tue, 1:00 PM EDT29Good4.826.2
Tue, 2:00 PM EDT29Good5.429.7
Tue, 3:00 PM EDT31Good5.234.2
Tue, 4:00 PM EDT36Good5.439.2
Tue, 5:00 PM EDT41Good5.544.4
Tue, 6:00 PM EDT44Good5.548.5
Tue, 7:00 PM EDT46Good4.750.6
Tue, 8:00 PM EDT46Good4.150.8
Tue, 9:00 PM EDT46Good4.350.1
Tue, 10:00 PM EDT44Good4.848.7
Tue, 11:00 PM EDT43Good5.246.3
Wed, 12:00 AM EDT40Good5.543
Wed, 1:00 AM EDT36Good5.539.6
Wed, 2:00 AM EDT32Good6.136
Wed, 3:00 AM EDT33Good6.832.8
Wed, 4:00 AM EDT37Good7.430.2
Wed, 5:00 AM EDT41Good827.7
Wed, 6:00 AM EDT43Good8.125.3
Wed, 7:00 AM EDT44Good8.223.4
Wed, 8:00 AM EDT42Good7.422.1
Wed, 9:00 AM EDT42Good7.720.9
Wed, 10:00 AM EDT45Good8.821.4
Wed, 11:00 AM EDT47Good9.122.9
Wed, 12:00 PM EDT47Good8.625.5
Wed, 1:00 PM EDT46Good7.928.7
Wed, 2:00 PM EDT45Good7.632.5
Wed, 3:00 PM EDT44Good7.236.6
Wed, 4:00 PM EDT41Good6.540.5
Wed, 5:00 PM EDT41Good6.744.4
Wed, 6:00 PM EDT43Good6.446.9
Wed, 7:00 PM EDT44Good6.147.6
Wed, 8:00 PM EDT43Good647
Wed, 9:00 PM EDT43Good5.546.1
Wed, 10:00 PM EDT41Good6.244.5
Wed, 11:00 PM EDT39Good7.342
Thu, 12:00 AM EDT38Good7.739.2
Thu, 1:00 AM EDT38Good7.236.3
Thu, 2:00 AM EDT38Good6.733.5
Thu, 3:00 AM EDT37Good6.531.1
Thu, 4:00 AM EDT36Good5.828.9
Thu, 5:00 AM EDT34Good5.826
Thu, 6:00 AM EDT33Good5.323.8
Thu, 7:00 AM EDT32Good5.222.1
Thu, 8:00 AM EDT28Good4.520.8

Fine particles in micrograms per cubic meter, ozone in parts per billion as an 8-hour average. The index for each hour is EPA’s: the ozone figure is already the 8-hour average the ozone index is defined on, and the particle figure is run through EPA’s NowCast, which is how an hourly PM2.5 concentration becomes an index.

Smoke

NOAA’s analysts have not drawn smoke over Ware Shoals in satellite imagery today.

NOAA’s model forecasts near-surface smoke peaking at 0.4 µg/m³ around Wed, 12:00 AM EDT.

Smoke on the radar over Ware Shoals

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 Ware ShoalsWarnings in Greenwood CountyLive radar over Ware ShoalsSouth 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.