Pennsylvania air quality

Lamar, Pennsylvania Air Quality

Clinton County41.016, -77.531

The nearest monitor to Lamar, at State College, 23 miles away, measured an index of 24 at Sun, 12:00 PM EDT, which is Good for fine particles (PM2.5). Pennsylvania Dept. of Environmental Protection forecasts Good for State College today and Good tomorrow.

Measured now
24 · Good
Today
30 · Good
Tomorrow
38 · Good
Pollutant
PM2.5

Fine particles on the map

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

Now

Good

Nearest monitor
State College, 23 miles away (site 420270100)
Index measured
24 · Good
Measured at
Sun, 12:00 PM EDT
Fine particles
4.1 µg/m³
Ozone
24 ppb
Reporting area
State College, PA, 23 miles away
Reported by
Pennsylvania Dept. of Environmental Protection
Area index
24 · 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 State College, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayGood30Ozone
TomorrowGood38Ozone
Tuesday, September 29Good42Ozone
Wednesday, September 30GoodOzone

The forecaster’s discussion

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

Current Conditions at 3 p.m. EDT this Friday afternoon: Skies are mostly sunny with pleasant conditions weather wise. However, a change is in the offing over the weekend as a coastal storm backs westward. Showers are likely both Saturday night and Sunday, then only slow improvements Monday. Here are the forecast details: *** Saturday’s forecast: Some sun early will give way to cloudiness by afternoon. A cool wind will also be present as high temperatures reach the middle and upper 60s. Ozone and PM2.5 concentrations remain low. *** Sunday’s forecast: Mostly cloudy with a breezy north wind Sunday, along with showers from time to time. Highs will be limited to near 60. Low values of air pollutants will occur. *** Monday’s forecast: The strong low pressure system will slowly move out to sea Monday with mostly cloudy skies and good air quality. *** Extended forecast: Skies turn partly sunny Tuesday with a milder afternoon, and Wednesday brings less wind with more sunshine appearing. Air quality remains good Tuesday through the mid-week period.---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 29, Good, around Mon, 6:00 PM EDT, from the run issued Sun, 8:00 AM EDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Sun, 2:00 PM EDT9Good1.5
Sun, 3:00 PM EDT9Good1.7
Sun, 4:00 PM EDT26Good1.728.4
Sun, 5:00 PM EDT26Good2.228.9
Sun, 6:00 PM EDT27Good229.3
Sun, 7:00 PM EDT27Good2.329.4
Sun, 8:00 PM EDT27Good2.529.3
Sun, 9:00 PM EDT27Good229.4
Sun, 10:00 PM EDT27Good1.929.2
Sun, 11:00 PM EDT26Good2.228.7
Mon, 12:00 AM EDT26Good2.228
Mon, 1:00 AM EDT25Good227.2
Mon, 2:00 AM EDT24Good1.826.3
Mon, 3:00 AM EDT23Good1.825.1
Mon, 4:00 AM EDT22Good1.724
Mon, 5:00 AM EDT21Good1.423
Mon, 6:00 AM EDT19Good0.521.9
Mon, 7:00 AM EDT19Good0.421
Mon, 8:00 AM EDT19Good0.320.3
Mon, 9:00 AM EDT18Good0.219.9
Mon, 10:00 AM EDT19Good0.420
Mon, 11:00 AM EDT19Good0.820.9
Mon, 12:00 PM EDT20Good0.822.1
Mon, 1:00 PM EDT21Good0.723.4
Mon, 2:00 PM EDT23Good1.125.2
Mon, 3:00 PM EDT25Good127.1
Mon, 4:00 PM EDT27Good0.429
Mon, 5:00 PM EDT28Good0.830.7
Mon, 6:00 PM EDT29Good1.131.7
Mon, 7:00 PM EDT29Good1.331.9
Mon, 8:00 PM EDT29Good1.331.6
Mon, 9:00 PM EDT29Good1.431.3
Mon, 10:00 PM EDT28Good2.130.7
Mon, 11:00 PM EDT27Good2.329.7
Tue, 12:00 AM EDT26Good2.428.3
Tue, 1:00 AM EDT24Good2.726.7
Tue, 2:00 AM EDT23Good2.625.3
Tue, 3:00 AM EDT21Good2.524
Tue, 4:00 AM EDT20Good2.422.6
Tue, 5:00 AM EDT19Good2.221
Tue, 6:00 AM EDT18Good1.319.5
Tue, 7:00 AM EDT17Good1.418.1
Tue, 8:00 AM EDT16Good1.717.4
Tue, 9:00 AM EDT16Good1.717
Tue, 10:00 AM EDT16Good1.617.3
Tue, 11:00 AM EDT17Good2.118.3
Tue, 12:00 PM EDT18Good2.319.7
Tue, 1:00 PM EDT19Good2.221.6
Tue, 2:00 PM EDT21Good1.523.6
Tue, 3:00 PM EDT23Good125.8
Tue, 4:00 PM EDT25Good1.327.7
Tue, 5:00 PM EDT27Good0.829.3
Tue, 6:00 PM EDT28Good0.930.1
Tue, 7:00 PM EDT28Good130.4
Tue, 8:00 PM EDT28Good0.930.3
Tue, 9:00 PM EDT27Good0.329.8
Tue, 10:00 PM EDT26Good0.528.8
Tue, 11:00 PM EDT25Good0.727.4
Wed, 12:00 AM EDT24Good0.226
Wed, 1:00 AM EDT22Good0.524.6
Wed, 2:00 AM EDT21Good0.823.9
Wed, 3:00 AM EDT21Good0.823
Wed, 4:00 AM EDT20Good122
Wed, 5:00 AM EDT19Good1.121
Wed, 6:00 AM EDT18Good0.519.7
Wed, 7:00 AM EDT17Good1.118.7
Wed, 8:00 AM EDT17Good1.618

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 Lamar 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 Lamar

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 LamarWarnings in Clinton CountyLive radar over LamarPennsylvania 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.