Pennsylvania air quality

Oakland, Pennsylvania Air Quality

Cambria County40.307, -78.887

The nearest monitor to Oakland, at Johnstown, 2 miles away, measured an index of 23 at Mon, 9:00 PM EDT, which is Good for fine particles (PM2.5). Pennsylvania Dept. of Environmental Protection forecasts Good for Johnstown today and Good tomorrow.

Measured now
23 · Good
Today
22 · Good
Tomorrow
36 · Good
Pollutant
PM2.5

Fine particles on the map

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

Now

Good

Nearest monitor
Johnstown, 2 miles away (site 420210011)
Index measured
23 · Good
Measured at
Mon, 9:00 PM EDT
Fine particles
4.7 µg/m³
Ozone
12 ppb
Reporting area
Johnstown, PA, 2 miles away
Reported by
Pennsylvania Dept. of Environmental Protection
Area index
23 · 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 Johnstown, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayGood22PM2.5
TomorrowGood36PM2.5
Wednesday, September 30Good48Ozone
Thursday, October 1ModerateOzone

The forecaster’s discussion

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

Current Conditions at 4 PM EDT this Monday afternoon: Skies remain mostly cloudy across the area with ozone and fine particle (PM2.5) levels rather low. Air quality will deteriorate a bit the next couple of days as warmer and more humid air moves in and low level mixing is reduced. Here are the forecast details: *** Tuesday’s forecast: Areas of fog in the morning, otherwise Tuesday turns out partly sunny. Light winds and limited mixing will allow ozone and PM2.5 to rise, but still in the good range. Highs in the upper 60s. *** Extended forecast: A southwesterly flow of unseasonably warm and humid air is forecasted Wednesday and Thursday, with highs reaching the upper 70s by Thursday. A cold front will bring showers and cooler air in Friday, then the front gets hung up just to the south over the weekend with showers possible, mainly late Saturday into Sunday morning. Moderate air quality is likely Thursday, then improves to good by Friday.---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 50, Good, around Tue, 12:00 AM EDT, from the run issued Mon, 8:00 AM EDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Mon, 11:00 PM EDT49Good9.514.7
Tue, 12:00 AM EDT50Good9.111.9
Tue, 1:00 AM EDT49Good8.89.5
Tue, 2:00 AM EDT48Good8.58.1
Tue, 3:00 AM EDT46Good86.7
Tue, 4:00 AM EDT44Good7.35.8
Tue, 5:00 AM EDT41Good6.35.7
Tue, 6:00 AM EDT39Good6.75.8
Tue, 7:00 AM EDT37Good66.3
Tue, 8:00 AM EDT36Good6.37.7
Tue, 9:00 AM EDT34Good5.98.8
Tue, 10:00 AM EDT34Good5.99.1
Tue, 11:00 AM EDT32Good5.410
Tue, 12:00 PM EDT28Good4.511.2
Tue, 1:00 PM EDT27Good4.613.9
Tue, 2:00 PM EDT27Good4.917.5
Tue, 3:00 PM EDT24Good3.821.5
Tue, 4:00 PM EDT22Good324.8
Tue, 5:00 PM EDT26Good328.8
Tue, 6:00 PM EDT30Good4.532.7
Tue, 7:00 PM EDT32Good6.335.5
Tue, 8:00 PM EDT34Good7.336.7
Tue, 9:00 PM EDT37Good7.235.9
Tue, 10:00 PM EDT41Good8.232.6
Tue, 11:00 PM EDT43Good8.129.1
Wed, 12:00 AM EDT44Good8.325.9
Wed, 1:00 AM EDT43Good7.722
Wed, 2:00 AM EDT39Good6.417.9
Wed, 3:00 AM EDT34Good5.514.6
Wed, 4:00 AM EDT32Good5.412
Wed, 5:00 AM EDT29Good4.49.7
Wed, 6:00 AM EDT24Good3.69.6
Wed, 7:00 AM EDT23Good4.29
Wed, 8:00 AM EDT23Good4.17.9
Wed, 9:00 AM EDT23Good4.16.8
Wed, 10:00 AM EDT24Good4.57.1
Wed, 11:00 AM EDT22Good3.68.8
Wed, 12:00 PM EDT22Good412.6
Wed, 1:00 PM EDT22Good418
Wed, 2:00 PM EDT24Good4.923.1
Wed, 3:00 PM EDT26Good4.128.9
Wed, 4:00 PM EDT32Good5.235.3
Wed, 5:00 PM EDT38Good5.741.8
Wed, 6:00 PM EDT44Good5.947.1
Wed, 7:00 PM EDT45Good6.450
Wed, 8:00 PM EDT46Good7.750.2
Wed, 9:00 PM EDT44Good6.448.8
Wed, 10:00 PM EDT43Good7.346.2
Wed, 11:00 PM EDT39Good6.942.8
Thu, 12:00 AM EDT36Good638.3
Thu, 1:00 AM EDT31Good4.732.9
Thu, 2:00 AM EDT26Good3.827.9
Thu, 3:00 AM EDT22Good3.323.8
Thu, 4:00 AM EDT21Good3.820.3
Thu, 5:00 AM EDT18Good2.816.8
Thu, 6:00 AM EDT20Good414.8
Thu, 7:00 AM EDT37Good9.713
Thu, 8:00 AM EDT27Good3.312

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 Oakland 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 Oakland

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 OaklandWarnings in Cambria CountyLive radar over OaklandPennsylvania 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.