Lyon County, Nevada Air Quality

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.

• Blowing Dust Advisory Blowing Dust Advisory issued September 21 at 2:42PM PDT until September 21 at 6:00PM PDT by NWS Elko NVSouthern Lander County and Southern Eureka County; Northwestern Nye County
  Full text

  * WHAT...Visibility between one-quarter and one mile in blowing dust. * WHERE...Southern Lander and Southern Eureka and Northwestern Nye Counties. * WHEN...Until 6 PM PDT this evening. * IMPACTS...Hazardous driving conditions due to reduced visibility.

All Nevada warnings

Good

Nearest monitor

Ranchos, 30 miles away (site 320050007)

Index measured

12 · Good

Measured at

Mon, 4:00 PM PDT

Fine particles

3 µg/m³

Reporting area

Gardnerville, NV, 30 miles away

Reported by

Nevada Division of Environmental Protection

Area index

12 · Good

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

Nevada Division of Environmental Protection's own forecast for Gardnerville, written by a forecaster rather than read off a model.

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 Tue, 9:00 AM PDT, from the run issued Mon, 5:00 AM PDT. This is a model, not a measurement.

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.

NOAA’s analysts have not drawn smoke over Lyon County in satellite imagery today.

NOAA’s model forecasts near-surface smoke peaking at 2.3 µg/m³ around Mon, 1:00 AM PDT.

Smoke on the radar over Lyon County

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.

The nearest towns with a page of their own, closest first.

• Yerington, NV3 miles
• Smith, NV17 miles
• Smith Valley, NV18 miles
• Topaz Ranch Estates, NV26 miles
• Dayton, NV26 miles
• Stagecoach, NV26 miles
• Silver Springs, NV27 miles
• East Valley, NV28 miles

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.