Wisconsin air quality

Potter Lake, Wisconsin Air Quality

Walworth County42.822, -88.349

The nearest monitor to Potter Lake, at Elkhorn, 13 miles away, measured an index of 23 at Mon, 7:00 PM CDT, which is Good for ground-level ozone. Wisconsin Dept. of Natural Resources forecasts Good for Kettle Moraine South today and Good tomorrow.

Measured now
23 · Good
Today
— · Good
Tomorrow
— · Good
Pollutant
Ozone

Fine particles on the map

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

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Potter Lake, Wisconsin 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 Potter Lake right now. All Wisconsin warnings.

Now

Good

Nearest monitor
Elkhorn, 13 miles away (site 840551270006)
Index measured
23 · Good
Measured at
Mon, 7:00 PM CDT
Ozone
24 ppb
Reporting area
Kettle Moraine South, WI, 15 miles away
Reported by
Wisconsin Dept. of Natural Resources
Area index
24 · Good

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

Today and tomorrow

Wisconsin Dept. of Natural Resources's own forecast for Kettle Moraine South, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayGoodOzone
TomorrowGoodOzone
Wednesday, September 23GoodOzone
Thursday, September 24GoodOzone

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 34, Good, around Wed, 10:00 PM CDT, from the run issued Mon, 7:00 AM CDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Mon, 9:00 AM CDT4Good1
Mon, 10:00 AM CDT4Good1
Mon, 11:00 AM CDT7Good1.6
Mon, 12:00 PM CDT7Good1.5
Mon, 1:00 PM CDT7Good1.2
Mon, 2:00 PM CDT7Good1.5
Mon, 3:00 PM CDT19Good0.720.9
Mon, 4:00 PM CDT19Good0.521
Mon, 5:00 PM CDT19Good0.621.4
Mon, 6:00 PM CDT19Good0.821.4
Mon, 7:00 PM CDT19Good1.421.2
Mon, 8:00 PM CDT19Good3.121.2
Mon, 9:00 PM CDT19Good2.520.9
Mon, 10:00 PM CDT19Good2.320.5
Mon, 11:00 PM CDT19Good1.920.4
Tue, 12:00 AM CDT19Good1.120.9
Tue, 1:00 AM CDT19Good0.321.8
Tue, 2:00 AM CDT20Good0.422.7
Tue, 3:00 AM CDT21Good0.423.4
Tue, 4:00 AM CDT21Good0.523.8
Tue, 5:00 AM CDT22Good0.524.2
Tue, 6:00 AM CDT22Good0.724.4
Tue, 7:00 AM CDT22Good0.624.2
Tue, 8:00 AM CDT21Good0.623.1
Tue, 9:00 AM CDT19Good1.421.7
Tue, 10:00 AM CDT19Good1.620.7
Tue, 11:00 AM CDT19Good1.420.2
Tue, 12:00 PM CDT19Good220.4
Tue, 1:00 PM CDT19Good2.721
Tue, 2:00 PM CDT20Good3.722.2
Tue, 3:00 PM CDT21Good1.923.6
Tue, 4:00 PM CDT23Good1.325.4
Tue, 5:00 PM CDT24Good1.426.8
Tue, 6:00 PM CDT25Good0.927.5
Tue, 7:00 PM CDT25Good1.327.1
Tue, 8:00 PM CDT23Good325.8
Tue, 9:00 PM CDT21Good3.823.9
Tue, 10:00 PM CDT20Good1.922.3
Tue, 11:00 PM CDT19Good1.221.4
Wed, 12:00 AM CDT19Good0.720.6
Wed, 1:00 AM CDT19Good0.820.3
Wed, 2:00 AM CDT19Good1.420.4
Wed, 3:00 AM CDT19Good1.521.1
Wed, 4:00 AM CDT20Good2.422
Wed, 5:00 AM CDT21Good3.823.1
Wed, 6:00 AM CDT21Good3.523.5
Wed, 7:00 AM CDT21Good3.423.2
Wed, 8:00 AM CDT20Good3.122.5
Wed, 9:00 AM CDT22Good4.621.6
Wed, 10:00 AM CDT21Good3.621.4
Wed, 11:00 AM CDT19Good321.6
Wed, 12:00 PM CDT19Good2.921.9
Wed, 1:00 PM CDT20Good3.422
Wed, 2:00 PM CDT23Good522.4
Wed, 3:00 PM CDT23Good4.323.1
Wed, 4:00 PM CDT22Good2.624.2
Wed, 5:00 PM CDT22Good3.325
Wed, 6:00 PM CDT23Good3.125.1
Wed, 7:00 PM CDT22Good4.524.6
Wed, 8:00 PM CDT27Good624.3
Wed, 9:00 PM CDT33Good7.123.9
Wed, 10:00 PM CDT34Good6.223.6
Wed, 11:00 PM CDT31Good5.123.1
Thu, 12:00 AM CDT29Good4.922.4
Thu, 1:00 AM CDT29Good5.421.7
Thu, 2:00 AM CDT31Good6.121.6
Thu, 3:00 AM CDT29Good4.722.1
Thu, 4:00 AM CDT24Good3.722.3
Thu, 5:00 AM CDT20Good122.6
Thu, 6:00 AM CDT20Good0.922.4
Thu, 7:00 AM CDT19Good1.421.8

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 Potter Lake in satellite imagery today.

NOAA’s model forecasts no measurable smoke near the ground here over the next two days.

Smoke on the radar over Potter Lake

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 Potter LakeWarnings in Walworth CountyLive radar over Potter LakeWisconsin 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.