Ozone chart (data available in table below)
Ozone Air Quality Index Ozone air quality index information icon
  • Ozone air quality index icon for good condition (green)Good
  • Ozone air quality index icon for moderate condition (yellow)Moderate
  • Ozone air quality index icon for unhealthy-for-sensitive-groups condition (orange)Unhealthy for Sensitive Groups
  • Ozone air quality index icon for unhealthy condition (red)Unhealthy
  • Ozone air quality index icon for very-unhealthy condition (purple)Very Unhealthy
  • Ozone air quality index icon for no data (gray)No Data Available
PA Particulate matter (PM2.5) chart (data available in table below)
Particulate Matter (PM2.5) Nowcast Air Quality Index Particulates PM2.5 air quality index information icon
  • Particulate (PM2.5) matter air quality index icon for good condition (green)Good
  • Particulate matter (PM2.5) air quality index icon for moderate condition (yellow)Moderate
  • Particulate matter (PM2.5) air quality index icon for unhealthy-for-sensitive-groups condition (orange)Unhealthy for Sensitive Groups
  • Particulate matter (PM2.5) air quality index icon for unhealthy condition (red)Unhealthy
  • Particulate matter (PM2.5) air quality index icon for very-unhealthy condition (purple)Very Unhealthy
  • Particulate matter (PM2.5) air quality index icon for hazardous condition (maroon)Hazardous
  • Particulate matter (PM2.5) air quality index icon for no data (gray)No Data Available
Particulate matter (PM2.5) chart (data available in table below)
Particulate Matter (PM2.5) Nowcast Air Quality Index Particulates PM2.5 air quality index information icon
  • Particulate (PM2.5) matter air quality index icon for good condition (green)Good
  • Particulate matter (PM2.5) air quality index icon for moderate condition (yellow)Moderate
  • Particulate matter (PM2.5) air quality index icon for unhealthy-for-sensitive-groups condition (orange)Unhealthy for Sensitive Groups
  • Particulate matter (PM2.5) air quality index icon for unhealthy condition (red)Unhealthy
  • Particulate matter (PM2.5) air quality index icon for very-unhealthy condition (purple)Very Unhealthy
  • Particulate matter (PM2.5) air quality index icon for hazardous condition (maroon)Hazardous
  • Particulate matter (PM2.5) air quality index icon for no data (gray)No Data Available
Particulate matter (PM10) chart (data available in table below)
Particulate matter (PM10) Air Quality Index Particulates PM10 air quality index information icon
  • Particulate (PM10) matter air quality index icon for good condition (green)Good
  • Particulate matter (PM10) air quality index icon for moderate condition (yellow)Moderate
  • Particulate matter (PM10) air quality index icon for unhealthy-for-sensitive-groups condition (orange)Unhealthy for Sensitive Groups
  • Particulate matter (PM10) air quality index icon for unhealthy condition (red)Unhealthy
  • Particulate matter (PM10) air quality index icon for very-unhealthy condition (purple)Very Unhealthy
  • Particulate matter (PM10) air quality index icon for hazardous condition (maroon)Hazardous
  • Particulate matter (PM10) air quality index icon for no data (gray)No Data Available
Sulfur Dioxide (SO2) chart (data available in table below)
Wind direction chart (data available in table below)
Wind speed chart (data available in table below)
Peak wind speed chart (data available in table below)
Temperature chart (data available in table below)
Relative humidity chart (data available in table below)
Precipitation chart (data available in table below)
Solar radiation chart (data available in table below)
Barometric pressure chart (data available in table below)
Visibility chart (data available in table below)
Carbon Monoxide (CO) chart (data available in table below)
Nitrogen Oxide (NO) chart (data available in table below)
Nitrogen Dioxide (NO2) chart (data available in table below)
Total Reactive Oxides of Nitrogen (NOx) chart (data available in table below)
Total Reactive Oxides of Nitrogen (NOy) chart (data available in table below)
24-Hour Ground Level Smoke Forecast
24-Hour Ground Level Smoke Forecast Air Quality Index Ground level smoke forecast air quality index information icon

The EPA air quality index (AQI) categories below are for particulate matter, based on modeled smoke.
Particulates from other sources are present but are not included in the estimated AQI.
Hover over the map symbols above for more detailed forecast information.
  • Ground level smoke forecast no smoke in the forecast (gray)No smoke in the forecast
  • Ground level smoke forecast air quality index icon for good condition (green), indcating either minimal or no smoke impactsGood, indicating minimal smoke in the forecast
  • Ground level smoke forecast air quality index icon for moderate condition (yellow)Moderate
  • Ground level smoke forecast air quality index icon for unhealthy-for-sensitive-groups condition (orange)Unhealthy for Sensitive Groups
  • Ground level smoke forecast air quality index icon for unhealthy condition (red)Unhealthy
  • Ground level smoke forecast air quality index icon for very-unhealthy condition (purple)Very Unhealthy
  • Ground level smoke forecast air quality index icon for hazardous condition (maroon)Hazardous
  • Ground level smoke forecast air quality data are not available (gray)Data not Available
Ozone air quality index good condition icon (green)
Good (0-54 ppb)
No cautionary statement.
Ozone air quality index moderate condition icon (yellow)
Moderate (55-70 ppb)
Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Ozone air quality index unhealthy-for-sensitive-groups condition icon (orange)
Unhealthy for Sensitive Groups (71-85 ppb)
Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy exertion outdoors.
Ozone air quality index unhealthy condition icon (red)
Unhealthy (86-105 ppb)
Active children and adults, and people with lung disease, such as asthma, should avoid prolonged or heavy exertion outdoors. Everyone else, especially children, should reduce prolonged or heavy exertion outdoors.
Ozone air quality index very-unhealthy condition icon (purple)
Very Unhealthy (106+ ppb)
Active children and adults, and people with lung disease, such as asthma, should avoid all outdoor exertion. Everyone else, especially children, should avoid prolonged or heavy exertion outdoors.
Learn more about the Air Quality Index »
Particulate matter (PM2.5) air quality index good condition icon (green)
Good (0 - 9 µg/m3)
No cautionary statement.
Particulate matter (PM2.5) air quality index moderate condition icon (yellow)
Moderate (9.1 - 35.4 µg/m3)
Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Particulate (PM2.5) matter air quality index unhealthy-for-sensitive-groups condition icon (orange)
Unhealthy for Sensitive Groups (35.5 - 55.4 µg/m3)
Children, older adults, active people, and people with heart or lung disease (such as asthma) should reduce prolonged or heavy exertion outdoors.
Particulate matter (PM2.5) air quality index unhealthy condition icon (red)
Unhealthy (55.5 - 125.4 µg/m3)
Children, older adults, active people, and people with heart or lung disease (such as asthma) should avoid prolonged or heavy exertion outdoors. Everyone else should reduce prolonged or heavy exertion outdoors.
Particulate matter (PM2.5) air quality index very-unhealthy condition icon (purple)
Very Unhealthy (125.5 - 225.4 µg/m3)
Children, older adults, active people, and people with heart or lung disease (such as asthma) should avoid all outdoor exertion. Everyone else should avoid prolonged or heavy exertion outdoors.
Particulate matter (PM2.5) air quality index hazardous condition icon (maroon)
Hazardous (> 225.4 µg/m3)
Everyone should avoid all physical activity outdoors. Children, older adults, and people with heart or lung disease (such as asthma) should remain indoors and keep activity levels low. Follow tips for keeping particle levels low indoors.
Learn more about the Air Quality Index »
Particulate matter (PM2.5) Nowcast air quality index good condition icon (green)
Good (0 - 50)
No cautionary statement.
Particulate matter (PM2.5) Nowcast air quality index moderate condition icon (yellow)
Moderate (51-100)
Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Particulate matter (PM2.5) Nowcast air quality index unhealthy-for-sensitive-groups condition icon (orange)
Unhealthy for Sensitive Groups (101-150)
Children, older adults, active people, and people with heart or lung disease (such as asthma) should reduce prolonged or heavy exertion outdoors.
Particulate matter (PM2.5) Nowcast air quality index unhealthy condition icon (red)
Unhealthy (151-200)
Children, older adults, active people, and people with heart or lung disease (such as asthma) should avoid prolonged or heavy exertion outdoors. Everyone else should reduce prolonged or heavy exertion outdoors.
Particulate matter (PM2.5) air quality index very-unhealthy condition icon (purple)
Very Unhealthy (201-300)
Children, older adults, active people, and people with heart or lung disease (such as asthma) should avoid all outdoor exertion. Everyone else should avoid prolonged or heavy exertion outdoors.
Particulate matter (PM2.5) air quality index hazardous condition icon (maroon)
Hazardous (301-500)
Everyone should avoid all physical activity outdoors. Children, older adults, and people with heart or lung disease (such as asthma) should remain indoors and keep activity levels low. Follow tips for keeping particle levels low indoors.
Learn more about the Air Quality Index »
Particulate matter (PM10) air quality index good condition icon (green)
Good (0 - 54.9 µg/m3)
No cautionary statement.
Particulate matter (PM10) air quality index moderate condition icon (yellow)
Moderate (55 - 154.9 µg/m3)
Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Particulate (PM10) matter air quality index unhealthy-for-sensitive-groups condition icon (orange)
Unhealthy for Sensitive Groups (155 - 254.9 µg/m3)
Children, older adults, active people, and people with heart or lung disease (such as asthma) should reduce prolonged or heavy exertion outdoors.
Particulate matter (PM10) air quality index unhealthy condition icon (red)
Unhealthy (255 - 354.9 µg/m3)
Children, older adults, active people, and people with heart or lung disease (such as asthma) should avoid prolonged or heavy exertion outdoors. Everyone else should reduce prolonged or heavy exertion outdoors.
Particulate matter (PM10) air quality index very-unhealthy condition icon (purple)
Very Unhealthy (355 - 424.9 µg/m3)
Children, older adults, active people, and people with heart or lung disease (such as asthma) should avoid all outdoor exertion. Everyone else should avoid prolonged or heavy exertion outdoors.
Particulate matter (PM10) air quality index hazardous condition icon (maroon)
Hazardous (> 425 µg/m3)
Everyone should avoid all physical activity outdoors. Children, older adults, and people with heart or lung disease (such as asthma) should remain indoors and keep activity levels low. Follow tips for keeping particle levels low indoors.
Learn more about the Air Quality Index »
Particulate matter (PM2.5) air quality index good condition icon (green)
Good (0 - 50)
No cautionary statement.
Particulate matter (PM2.5) air quality index moderate condition icon (yellow)
Moderate (51-100)
Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Particulate matter (PM2.5) air quality index unhealthy-for-sensitive-groups condition icon (orange)
Unhealthy for Sensitive Groups (101-150)
Children, older adults, active people, and people with heart or lung disease (such as asthma) should reduce prolonged or heavy exertion outdoors.
Particulate matter (PM2.5) air quality index unhealthy condition icon (red)
Unhealthy (151-200)
Children, older adults, active people, and people with heart or lung disease (such as asthma) should avoid prolonged or heavy exertion outdoors. Everyone else should reduce prolonged or heavy exertion outdoors.
Particulate matter (PM2.5) air quality index very-unhealthy condition icon (purple)
Very Unhealthy (201-300)
Children, older adults, active people, and people with heart or lung disease (such as asthma) should avoid all outdoor exertion. Everyone else should avoid prolonged or heavy exertion outdoors.
Particulate matter (PM2.5) air quality index hazardous condition icon (maroon)
Hazardous (301-500)
Everyone should avoid all physical activity outdoors. Children, older adults, and people with heart or lung disease (such as asthma) should remain indoors and keep activity levels low. Follow tips for keeping particle levels low indoors.
Learn more about the Air Quality Index »
Understanding 24-Hour Ground Level Smoke Forecasts »

The forecast shown here displays calculated 24-hour air quality index (AQI) values for particulate matter based on the NOAA High-Resolution Rapid Refresh Smoke (HRRR-Smoke) model. This model uses satellite data to determine fire emissions and a three-dimensional weather-smoke model to simulate smoke dispersion. The forecast AQI is based on the surface smoke variable. Each symbol on the map represents a grid point of the model output (3 kilometer resolution). The model is updated hourly, and the model start time is shown above the map. The calculated AQI is only for particulate matter from surface smoke. The model does not currently provide data on other particle types and may not be as protective as the overall AQI that considers other sources of particulatematter and ozone.
Learn more about the HRRR-Smoke Model »