Indiana air quality

Warrick County, Indiana Air Quality

Warrick County38.092, -87.272

The nearest monitor to Warrick County, at Boonville, 3 miles away, measured an index of 37 at Mon, 12:00 PM CDT, which is Good for ground-level ozone. Evansville EPA - Vanderburgh County Health Dept. forecasts Good for Evansville today and Moderate tomorrow.

Measured now
37 · Good
Today
— · Good
Tomorrow
— · Moderate
Pollutant
Ozone

Fine particles on the map

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

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Warrick County, Indiana 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 Warrick County right now. All Indiana warnings.

Now

Good

Nearest monitor
Boonville, 3 miles away (site 181730008)
Index measured
37 · Good
Measured at
Mon, 12:00 PM CDT
Ozone
43 ppb
Reporting area
Evansville, IN, 17 miles away
Reported by
Evansville EPA - Vanderburgh County Health Dept.
Area index
40 · Good

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

Today and tomorrow

Evansville EPA - Vanderburgh County Health Dept.'s own forecast for Evansville, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayGoodPM2.5
TomorrowModeratePM2.5
Wednesday, September 23ModeratePM2.5

The forecaster’s discussion

Written by Evansville EPA - Vanderburgh County Health Dept. for Evansville and filed with AirNow.

Southern Regions: Ozone was mostly Good, except for a couple Moderates across the state line around Louisville. As for PM2.5, it was mostly Moderate for the forecast period. (Past Friday through Sunday.) As of 12Z this morning, on the radar is a widespread area of showers and isolated thunderstorms mainly around I-70 and across portions of southern Indiana. This large body of precipitation is moving slowly east. Meanwhile, a stationary boundary is lingering to the south of Indiana, over Kentucky this morning and where it will remain today, before finally dropping south of Kentucky by this evening. Rain will eventually diminish throughout the day as the boundary drops farther south and conditions will become mostly cloudy. The southernmost counties of the area likely won't see much if any rain today, only a slight chance. Highs this afternoon will have quite the gradient ranging from the lower 70's (north) to the mid 80's (southern counties) of southern Indiana. Dew points will be in the upper 60's. Winds will be northerly at 5 to 10 mph. A weak wave moves across the area on Tuesday and could mean some isolated showers and thunderstorms. Seasonable temperatures will continue into tomorrow (Tuesday) and actually through the rest of the work week! Look for highs on Tuesday afternoon in the 70's with mostly cloudy skies. Dew points will be in the lower 60's. Winds will be northeast at 5 to 10 mph. Similar high temperatures and dew points are in store for Wednesday. Winds will continue to be from the northeast at 5 to 10 mph. As for guidance this forecast period, the Canadian is predicting Ozone to be Good through Wednesday. The 06Z BC NOAA model is also predicting Good ozone through Wednesday, which both models make sense as the area is getting a decent rain today, which may help clean out the area (at least over the northern counties of the area). Then the winds remain out of the northeast through the period at 5 to 10 mph, and it's hard to get Ozone growth with these kind of winds. Will therefore go with Good for ozone for the entire period for both sites, Evansville and Louisville. As for PM2.5, the NOAA model is predicting Good through Monday or Tuesday and then Moderate for Tuesday through Wednesday depending on which site you look at. (Louisville is a bit more robust with the Moderate.) Since the southernmost counties of the area will not get well cleaned due to a lack of rain, PM2.5 could start growing here as soon as Tuesday. So will be conservative and go with Good for today and then Moderate the rest of the period for PM2.5.

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 52, Moderate, around Wed, 1:00 AM CDT, from the run issued Mon, 7:00 AM CDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Mon, 9:00 AM CDT18Good3.6
Mon, 10:00 AM CDT19Good3.6
Mon, 11:00 AM CDT18Good3
Mon, 12:00 PM CDT18Good3.6
Mon, 1:00 PM CDT22Good4.8
Mon, 2:00 PM CDT24Good4.9
Mon, 3:00 PM CDT33Good5.236.2
Mon, 4:00 PM CDT35Good5.338.7
Mon, 5:00 PM CDT37Good5.440.9
Mon, 6:00 PM CDT39Good5.642.5
Mon, 7:00 PM CDT39Good5.642.7
Mon, 8:00 PM CDT39Good4.742.2
Mon, 9:00 PM CDT38Good6.541.3
Mon, 10:00 PM CDT37Good7.639.4
Mon, 11:00 PM CDT41Good8.237.5
Tue, 12:00 AM CDT41Good7.835.5
Tue, 1:00 AM CDT41Good7.333.4
Tue, 2:00 AM CDT40Good7.230.9
Tue, 3:00 AM CDT40Good7.228.9
Tue, 4:00 AM CDT42Good7.926.9
Tue, 5:00 AM CDT44Good8.425.4
Tue, 6:00 AM CDT41Good6.723.8
Tue, 7:00 AM CDT38Good6.422.3
Tue, 8:00 AM CDT39Good6.420.8
Tue, 9:00 AM CDT37Good6.219.7
Tue, 10:00 AM CDT35Good5.618.7
Tue, 11:00 AM CDT31Good4.918.4
Tue, 12:00 PM CDT26Good4.118.6
Tue, 1:00 PM CDT23Good3.718.8
Tue, 2:00 PM CDT21Good3.520.1
Tue, 3:00 PM CDT22Good4.121.5
Tue, 4:00 PM CDT23Good4.323
Tue, 5:00 PM CDT24Good4.624.4
Tue, 6:00 PM CDT26Good5.225.8
Tue, 7:00 PM CDT29Good5.826.3
Tue, 8:00 PM CDT29Good5.526.8
Tue, 9:00 PM CDT37Good827.9
Tue, 10:00 PM CDT43Good8.928.7
Tue, 11:00 PM CDT48Good9.629.1
Wed, 12:00 AM CDT51Moderate9.929.2
Wed, 1:00 AM CDT52Moderate9.728.6
Wed, 2:00 AM CDT52Moderate9.427.9
Wed, 3:00 AM CDT51Moderate927.5
Wed, 4:00 AM CDT50Good8.927.1
Wed, 5:00 AM CDT51Moderate9.625.6
Wed, 6:00 AM CDT46Good7.223.7
Wed, 7:00 AM CDT47Good8.522
Wed, 8:00 AM CDT48Good9.120.6
Wed, 9:00 AM CDT49Good9.520.4
Wed, 10:00 AM CDT51Moderate9.720.5
Wed, 11:00 AM CDT51Moderate8.920.7
Wed, 12:00 PM CDT49Good8.420.8
Wed, 1:00 PM CDT48Good821.3
Wed, 2:00 PM CDT47Good7.822.4
Wed, 3:00 PM CDT46Good823.8
Wed, 4:00 PM CDT45Good7.925.4
Wed, 5:00 PM CDT46Good8.426.2
Wed, 6:00 PM CDT46Good8.826.7
Wed, 7:00 PM CDT47Good8.826.7
Wed, 8:00 PM CDT44Good7.126
Wed, 9:00 PM CDT44Good7.525.9
Wed, 10:00 PM CDT43Good7.425.2
Wed, 11:00 PM CDT42Good7.124.3
Thu, 12:00 AM CDT42Good7.222.8
Thu, 1:00 AM CDT41Good7.221.1
Thu, 2:00 AM CDT41Good7.319.3
Thu, 3:00 AM CDT41Good7.218
Thu, 4:00 AM CDT41Good7.217.7
Thu, 5:00 AM CDT39Good6.816.8
Thu, 6:00 AM CDT36Good5.616.3
Thu, 7:00 AM CDT36Good5.915.4

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 Warrick County in satellite imagery today.

NOAA’s model forecasts near-surface smoke peaking at 1.6 µg/m³ around Sun, 10:00 PM CDT.

Smoke on the radar over Warrick County

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 Warrick CountyWarnings in Warrick CountyLive radar over Warrick CountyIndiana 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.