Pennsylvania air quality

West Kittanning, Pennsylvania Air Quality

Armstrong County40.810, -79.529

The nearest monitor to West Kittanning, at Kittanning, 2 miles away, measured an index of 21 at Tue, 3:00 PM EDT, which is Good for ground-level ozone. Pennsylvania Dept. of Environmental Protection forecasts Good for Indiana County today and Good tomorrow.

Measured now
21 · Good
Today
24 · Good
Tomorrow
28 · Good
Pollutant
Ozone

Fine particles on the map

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

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over West Kittanning, Pennsylvania 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 West Kittanning right now. All Pennsylvania warnings.

Now

Good

Nearest monitor
Kittanning, 2 miles away (site 420050001)
Index measured
21 · Good
Measured at
Tue, 3:00 PM EDT
Fine particles
1.4 µg/m³
Ozone
24 ppb
Reporting area
Indiana County, PA, 24 miles away
Reported by
Pennsylvania Dept. of Environmental Protection
Area index
22 · Good

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

Today and tomorrow

Pennsylvania Dept. of Environmental Protection's own forecast for Indiana County, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayGood24Ozone
TomorrowGood28Ozone
Thursday, September 24Good31Ozone
Friday, September 25GoodOzone

The forecaster’s discussion

Written by Pennsylvania Dept. of Environmental Protection for Indiana County and filed with AirNow.

Current Conditions at 4 PM EDT this Tuesday afternoon: Skies remain overcast across the area with light rain, fog, and drizzle lingering about. A brisk east-northeast wind has brought in very clean air, so fine particle (PM2.5) and ozone concentrations are rather low. While levels of these pollutants increase a bit over the next couple of days, good air quality is still expected. Here are the forecast details: *** Wednesday’s forecast: Morning clouds and fog will break for some afternoon sunshine with high temperatures reaching the lower to middle 60s. Breezy east winds will again maintain low levels of PM2.5 and ozone. *** Extended forecast: High pressure then controls the weather for the period Thursday through Saturday with areas of morning fog, then mostly sunny by day. Temperatures will slowly get back to normal over the weekend. Good air quality also continues Thursday into the weekend.---McAuliffe

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 39, Good, around Thu, 5:00 AM EDT, from the run issued Tue, 8:00 AM EDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Tue, 10:00 AM EDT24Good4.1
Tue, 11:00 AM EDT19Good2.7
Tue, 12:00 PM EDT16Good2.4
Tue, 1:00 PM EDT12Good1.4
Tue, 2:00 PM EDT9Good1.5
Tue, 3:00 PM EDT8Good1.4
Tue, 4:00 PM EDT23Good1.425.1
Tue, 5:00 PM EDT21Good1.323.8
Tue, 6:00 PM EDT20Good1.322.9
Tue, 7:00 PM EDT20Good0.722.7
Tue, 8:00 PM EDT21Good1.123
Tue, 9:00 PM EDT20Good222.5
Tue, 10:00 PM EDT20Good1.922.1
Tue, 11:00 PM EDT20Good3.222.1
Wed, 12:00 AM EDT20Good2.322.7
Wed, 1:00 AM EDT21Good2.123.5
Wed, 2:00 AM EDT22Good2.324.7
Wed, 3:00 AM EDT22Good224.8
Wed, 4:00 AM EDT22Good1.524.3
Wed, 5:00 AM EDT22Good1.524.3
Wed, 6:00 AM EDT22Good2.524.1
Wed, 7:00 AM EDT21Good2.323.7
Wed, 8:00 AM EDT21Good1.323.1
Wed, 9:00 AM EDT20Good0.422.6
Wed, 10:00 AM EDT19Good0.221.6
Wed, 11:00 AM EDT19Good0.821.1
Wed, 12:00 PM EDT19Good0.820.8
Wed, 1:00 PM EDT19Good0.820.5
Wed, 2:00 PM EDT19Good0.820.2
Wed, 3:00 PM EDT19Good0.920
Wed, 4:00 PM EDT18Good119.9
Wed, 5:00 PM EDT18Good0.419.2
Wed, 6:00 PM EDT18Good0.719.1
Wed, 7:00 PM EDT18Good0.919.7
Wed, 8:00 PM EDT19Good1.320.2
Wed, 9:00 PM EDT18Good2.920
Wed, 10:00 PM EDT18Good3.420
Wed, 11:00 PM EDT19Good3.120.3
Thu, 12:00 AM EDT19Good4.320.3
Thu, 1:00 AM EDT23Good521
Thu, 2:00 AM EDT27Good5.321.3
Thu, 3:00 AM EDT30Good6.120.8
Thu, 4:00 AM EDT34Good6.819.9
Thu, 5:00 AM EDT39Good7.919.4
Thu, 6:00 AM EDT38Good6.619.2
Thu, 7:00 AM EDT33Good5.318
Thu, 8:00 AM EDT27Good3.716.7
Thu, 9:00 AM EDT23Good3.715.4
Thu, 10:00 AM EDT13Good0.714.5
Thu, 11:00 AM EDT13Good114.2
Thu, 12:00 PM EDT13Good0.914.6
Thu, 1:00 PM EDT14Good0.715.9
Thu, 2:00 PM EDT16Good0.717.1
Thu, 3:00 PM EDT18Good0.719.3
Thu, 4:00 PM EDT19Good0.721.8
Thu, 5:00 PM EDT21Good0.723.7
Thu, 6:00 PM EDT23Good0.725.2
Thu, 7:00 PM EDT24Good0.626.2
Thu, 8:00 PM EDT24Good0.926.1
Thu, 9:00 PM EDT22Good1.124.5
Thu, 10:00 PM EDT20Good0.322
Thu, 11:00 PM EDT18Good4.219
Fri, 12:00 AM EDT21Good5.216.2
Fri, 1:00 AM EDT28Good6.313.7
Fri, 2:00 AM EDT30Good5.811.3
Fri, 3:00 AM EDT29Good59.1
Fri, 4:00 AM EDT27Good4.77.7
Fri, 5:00 AM EDT25Good4.27.1
Fri, 6:00 AM EDT17Good1.77.1
Fri, 7:00 AM EDT17Good37
Fri, 8:00 AM EDT15Good2.56.7

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 West Kittanning 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 West Kittanning

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 West KittanningWarnings in Armstrong CountyLive radar over West KittanningPennsylvania 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.