Maryland air quality

Willards, Maryland Air Quality

Wicomico County38.391, -75.348

The nearest monitor to Willards, at SEAFORD, 23 miles away, measured an index of 24 at Wed, 3:00 AM EDT, which is Good for fine particles (PM2.5). Delaware Dept. of Natural Resources and Environment forecasts Good for Sussex County today and Good tomorrow.

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

Fine particles on the map

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

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

Now

Good

Nearest monitor
SEAFORD, 23 miles away (site 100051002)
Index measured
24 · Good
Measured at
Wed, 3:00 AM EDT
Fine particles
4.6 µg/m³
Ozone
25 ppb
Reporting area
Sussex County, DE, 21 miles away
Reported by
Delaware Dept. of Natural Resources and Environment
Area index
24 · Good

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

Today and tomorrow

Delaware Dept. of Natural Resources and Environment's own forecast for Sussex County, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayGood30Ozone
TomorrowGood33Ozone
Friday, September 25Good37Ozone

The forecaster’s discussion

Written by Delaware Dept. of Natural Resources and Environment for Sussex County and filed with AirNow.

Wednesday, September 23 through Friday, September 25: As a surface low gradually strengthens offshore, and a surface high remains anchored to the north, gusty northeasterly winds will aid dispersion and transport clean air into the Mid-Atlantic each day. In addition, partly to mostly cloudy skies and cool temperatures will hinder ozone development. As a result, AQI levels are anticipated to be Good for ozone and PM2.5 on all three days.

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 28, Good, around Fri, 2:00 AM EDT, from the run issued Tue, 11:00 PM EDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Tue, 10:00 AM EDT6Good1.3
Tue, 11:00 AM EDT7Good1.3
Tue, 12:00 PM EDT6Good1.1
Tue, 1:00 PM EDT6Good1.1
Tue, 2:00 PM EDT7Good1.6
Tue, 3:00 PM EDT8Good1.7
Tue, 4:00 PM EDT24Good1.226.5
Tue, 5:00 PM EDT23Good0.925.7
Tue, 6:00 PM EDT23Good0.725.1
Tue, 7:00 PM EDT22Good0.824.7
Tue, 8:00 PM EDT22Good0.924.4
Tue, 9:00 PM EDT22Good2.124
Tue, 10:00 PM EDT21Good223.9
Tue, 11:00 PM EDT21Good1.924
Wed, 12:00 AM EDT22Good1.724.3
Wed, 1:00 AM EDT22Good1.924.5
Wed, 2:00 AM EDT22Good1.924.9
Wed, 3:00 AM EDT23Good2.125.3
Wed, 4:00 AM EDT23Good226
Wed, 5:00 AM EDT24Good1.826.7
Wed, 6:00 AM EDT25Good127.3
Wed, 7:00 AM EDT25Good1.227.7
Wed, 8:00 AM EDT25Good1.627.9
Wed, 9:00 AM EDT25Good1.527.8
Wed, 10:00 AM EDT25Good1.127.4
Wed, 11:00 AM EDT24Good0.726.9
Wed, 12:00 PM EDT24Good0.726.1
Wed, 1:00 PM EDT23Good0.825.2
Wed, 2:00 PM EDT22Good0.724.5
Wed, 3:00 PM EDT21Good0.823.8
Wed, 4:00 PM EDT21Good123.1
Wed, 5:00 PM EDT20Good0.722.7
Wed, 6:00 PM EDT20Good0.522.5
Wed, 7:00 PM EDT20Good0.522.5
Wed, 8:00 PM EDT20Good0.422.6
Wed, 9:00 PM EDT20Good1.822.5
Wed, 10:00 PM EDT20Good2.122.3
Wed, 11:00 PM EDT20Good2.222.2
Thu, 12:00 AM EDT20Good2.222.4
Thu, 1:00 AM EDT20Good1.822.8
Thu, 2:00 AM EDT21Good1.523.1
Thu, 3:00 AM EDT21Good1.623.4
Thu, 4:00 AM EDT21Good1.523.9
Thu, 5:00 AM EDT22Good1.624.5
Thu, 6:00 AM EDT23Good0.825.4
Thu, 7:00 AM EDT24Good0.826.3
Thu, 8:00 AM EDT24Good0.926.9
Thu, 9:00 AM EDT24Good0.727
Thu, 10:00 AM EDT24Good0.626.9
Thu, 11:00 AM EDT24Good0.726.8
Thu, 12:00 PM EDT24Good0.626.4
Thu, 1:00 PM EDT24Good0.526
Thu, 2:00 PM EDT23Good0.625.4
Thu, 3:00 PM EDT22Good0.624.9
Thu, 4:00 PM EDT22Good0.624.6
Thu, 5:00 PM EDT22Good0.724.7
Thu, 6:00 PM EDT23Good0.825.2
Thu, 7:00 PM EDT23Good0.925.7
Thu, 8:00 PM EDT24Good0.926.3
Thu, 9:00 PM EDT25Good127
Thu, 10:00 PM EDT25Good1.127.9
Thu, 11:00 PM EDT26Good1.328.7
Fri, 12:00 AM EDT27Good1.429.3
Fri, 1:00 AM EDT27Good1.529.8
Fri, 2:00 AM EDT28Good1.730.1
Fri, 3:00 AM EDT28Good230.1
Fri, 4:00 AM EDT27Good230
Fri, 5:00 AM EDT27Good1.729.6
Fri, 6:00 AM EDT27Good229.2
Fri, 7:00 AM EDT26Good2.228.7
Fri, 8:00 AM EDT25Good2.128

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 Willards 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 Willards

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 WillardsWarnings in Wicomico CountyLive radar over WillardsMaryland 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.