Phoenix
 
Data and Forecasts courtesy of:
 

 - https://files.airnowtech.org/airnow/today/cur_aqi_phoenix_az.jpg
 
Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20190825_phoenix_az.jpg
 
Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
AQI Animation - https://files.airnowtech.org/airnow/today/anim_aqi_phoenix_az.gif
 
Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
 
AQI: Good (0 - 50) AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.
AQI: Moderate (51 - 100) AQI: Moderate (51 - 100)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy for Sensitive Groups (101 - 150)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.
AQI: Unhealthy (151 - 200) AQI: Unhealthy (151 - 200)
Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects.
 AQI:Very Unhealthy (201 - 300) AQI: Very Unhealthy (201 - 300)
Health alert: everyone may experience more serious health effects.
AQI: Hazardous(301 - 500) AQI: Hazardous (301 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.
Action DayAction Day
 
Local Air Quality Resources
Maricopa County Air Quality Department | Maricopa County Dust Forecast | Today's AQI and Forecast (AZ DEQ)
 
State Air Quality Resources
ADEQ Contact Information
ADEQ Regional Haze and Visibility
American Lung Association (ALA) of Arizona
Arizona Department of Environmental Quality Air Quality Division
Clean Air Make More - Maricopa County
Gila River Indian Community DEQ Air Quality Program
 
Data and Forecasts courtesy of:
Current Conditions
Air Quality Index (AQI)
observed at 12:00 MST
39
Good
Health Message: None
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.
AQI - Pollutant Details
Ozone 39 Good
Particles (PM10) 12 Good
Particles (PM2.5) 14 Good
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
84
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
84
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
84
Moderate
Particles (PM10)
44
Good
Particles (PM2.5)
26
Good
Ozone
84
Moderate
Particles (PM10)
52
Moderate
Particles (PM2.5)
31
Good
Forecast Discussion: [View the ADEQ Hourly Forecast for Phoenix]
Thunderstorms got close! Yesterday, a lot of folks probably saw isolated storms south of the city over Pinal County before sunset. If you happened to be up late at night, more storms developed near Queen Creek and southeast of Gilbert around the midnight hour. Local airports, including Phoenix Sky Harbor, did note a wave of gusty winds coming from that direction. The PM10 network lit up as dust crossed the area. The concentrations were not too excessive, but it has resulted in hazy skies this morning.

Other news from yesterday was that faster winds in general from a low pressure trough sagging over Arizona forced ozone to plummet. Highest AQI this time around was 74 (62 parts per billion) at Tonto National Monument. Intensity of vertical winds subside today (the trough is lifting northward out of the area), but there is enough westerly flow to check ozone for most of the upcoming forecast period. Daily values at or near Health Watch criteria (90 to 100 AQI) are still anticipated.

Back to talking thunderstorms and possible blowing dust again. Walking out the door this morning you can quickly tell muggy weather has returned. With that said, we are expecting yet another round of storms getting to the fringe of the Valley later this afternoon and evening. Today and tonight is probably the best opportunity.

Saturday, potential wanes and is all but eliminated by Sunday when dry and warm air overhead caps cloud growth. The demarcation line at that point for storms shifts way southeastward toward the International Border. So, enjoy the storms chances for the moment, but also be careful of the hazards that come with them, including lightning and, of course, blowing dust. I would like to be optimistic about rain. It is just that the coverage and duration of storms that do find their way into the Valley are meager at best, similar to what occurred Thursday night.

Have a great weekend!


J. Malloy
http://azdeq.gov/phoenix/forecast
Last Update: Friday, August 23, 2019, 9:30 AM
Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)

E-Mail Notification
 
Enviroflash Email
Visibility Camera
Phoenix, AZ
 
Phoenix, AZ

View Other Visibility Cameras