Oklahoma air quality

Crescent, Oklahoma Air Quality

Logan County35.953, -97.595

The nearest monitor to Crescent, at North OKC, 24 miles away, measured an index of 47 at Sat, 4:00 AM CDT, which is Good for fine particles (PM2.5). Oklahoma Department of Environmental Quality forecasts Moderate for Oklahoma City today and Moderate tomorrow.

Measured now
47 · Good
Today
80 · Moderate
Tomorrow
70 · Moderate
Pollutant
PM2.5

Fine particles on the map

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

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Crescent, Oklahoma 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 Crescent right now. All Oklahoma warnings.

Now

Good

Nearest monitor
North OKC, 24 miles away (site 401091037)
Index measured
47 · Good
Measured at
Sat, 4:00 AM CDT
Fine particles
7.7 µg/m³
Ozone
42 ppb
Reporting area
Oklahoma City, OK, 31 miles away
Reported by
Oklahoma Department of Environmental Quality
Area index
47 · Good

Measured, not modeled. AirNow observations are preliminary until the operating agency certifies them, which happens months later.

Today and tomorrow

Oklahoma Department of Environmental Quality's own forecast for Oklahoma City, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayModerate80Ozone
TomorrowModerate70Ozone
Monday, September 28Moderate80Ozone
Tuesday, September 29Moderate60PM2.5
Wednesday, September 30Good50Ozone

The forecaster’s discussion

Written by Oklahoma Department of Environmental Quality for Oklahoma City and filed with AirNow.

A low-pressure center on the Canadian prairies will develop and induce southerly flow today. That southerly wind will bring ozone pollution and light Mesoamerican smoke or Saharan dust northward from Texas. A powerful hurricane off the Pacific coast of Mexico will continue to bring sufficient moisture into the southwest monsoon for scattered showers in western Oklahoma and especially the Panhandle. A dry atmosphere and abundant sunlight in eastern Oklahoma will foster ozone formation. This pattern of summerlike warmth and scattered showers in western Oklahoma will persist through the next week, when the precipitation expands into the eastern counties.

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 84, Moderate, around Sun, 7:00 PM CDT, from the run issued Sat, 1:00 AM CDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Sat, 5:00 AM CDT45Good7.7
Sat, 6:00 AM CDT39Good5.6
Sat, 7:00 AM CDT27Good3
Sat, 8:00 AM CDT22Good3
Sat, 9:00 AM CDT39Good5.342.8
Sat, 10:00 AM CDT40Good9.841.9
Sat, 11:00 AM CDT49Good10.441.9
Sat, 12:00 PM CDT49Good942.9
Sat, 1:00 PM CDT49Good9.144.7
Sat, 2:00 PM CDT51Moderate9.846.8
Sat, 3:00 PM CDT52Moderate9.848.1
Sat, 4:00 PM CDT50Good8.649.6
Sat, 5:00 PM CDT51Moderate9.652.2
Sat, 6:00 PM CDT53Moderate10.955.5
Sat, 7:00 PM CDT58Moderate1057.5
Sat, 8:00 PM CDT58Moderate9.757.9
Sat, 9:00 PM CDT58Moderate9.257.5
Sat, 10:00 PM CDT58Moderate8.457
Sat, 11:00 PM CDT54Moderate756.8
Sun, 12:00 AM CDT58Moderate6.457.2
Sun, 1:00 AM CDT54Moderate5.356.6
Sun, 2:00 AM CDT50Good5.655
Sun, 3:00 AM CDT49Good5.653.1
Sun, 4:00 AM CDT47Good5.851.2
Sun, 5:00 AM CDT45Good6.249.4
Sun, 6:00 AM CDT44Good5.247.1
Sun, 7:00 AM CDT41Good4.144.8
Sun, 8:00 AM CDT38Good3.941.9
Sun, 9:00 AM CDT36Good5.339.5
Sun, 10:00 AM CDT35Good6.938.2
Sun, 11:00 AM CDT40Good8.738.4
Sun, 12:00 PM CDT50Good10.940
Sun, 1:00 PM CDT54Moderate12.742.6
Sun, 2:00 PM CDT57Moderate13.845.9
Sun, 3:00 PM CDT59Moderate14.849.4
Sun, 4:00 PM CDT59Moderate13.853.5
Sun, 5:00 PM CDT59Moderate13.357.9
Sun, 6:00 PM CDT71Moderate12.862
Sun, 7:00 PM CDT84Moderate11.965
Sun, 8:00 PM CDT84Moderate11.165.6
Sun, 9:00 PM CDT80Moderate10.764.3
Sun, 10:00 PM CDT74Moderate9.462.1
Sun, 11:00 PM CDT64Moderate8.559.2
Mon, 12:00 AM CDT51Moderate7.955.4
Mon, 1:00 AM CDT47Good7.251.3
Mon, 2:00 AM CDT44Good8.246.7
Mon, 3:00 AM CDT47Good8.841.9
Mon, 4:00 AM CDT46Good8.338.1
Mon, 5:00 AM CDT46Good8.235
Mon, 6:00 AM CDT41Good6.532.3
Mon, 7:00 AM CDT33Good4.530.3
Mon, 8:00 AM CDT27Good429
Mon, 9:00 AM CDT26Good4.628.6
Mon, 10:00 AM CDT29Good5.929.3
Mon, 11:00 AM CDT36Good7.831
Mon, 12:00 PM CDT44Good9.634.1
Mon, 1:00 PM CDT52Moderate1138.2
Mon, 2:00 PM CDT54Moderate11.542.9
Mon, 3:00 PM CDT56Moderate12.947.7
Mon, 4:00 PM CDT56Moderate12.252.3
Mon, 5:00 PM CDT57Moderate12.456.3
Mon, 6:00 PM CDT64Moderate12.459.2
Mon, 7:00 PM CDT67Moderate11.460.8
Mon, 8:00 PM CDT71Moderate9.661.1
Mon, 9:00 PM CDT67Moderate8.760.2
Mon, 10:00 PM CDT61Moderate6.958.9
Mon, 11:00 PM CDT54Moderate7.156.9
Tue, 12:00 AM CDT50Good8.754.1
Tue, 1:00 AM CDT48Good9.151.1

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 Crescent in satellite imagery today.

NOAA’s model forecasts near-surface smoke peaking at 1 µg/m³ around Sun, 4:00 AM CDT.

Smoke on the radar over Crescent

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 CrescentWarnings in Logan CountyLive radar over CrescentOklahoma 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.