Phoenix
 
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AQI Forecast - http://www.epa.gov/airnow/today/forecast_aqi_20140916_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.
 - http://www.epa.gov/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 Animation - http://www.epa.gov/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: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) 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

AirNow.gov is undergoing maintenance. Updates for the forecasts and current conditions are not available between midnight and 4 am EST.

Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
44 
Good
Health Message: None
Data Not Available
AQI - Pollutant Details
Ozone
44 
Good
Particles (PM10)
27 
Good
Particles (PM2.5)
20 
Good
Carbon Monoxide
Good
Data Not Available
Forecast Discussion: Arizona is in a prime spot to see a rather dramatic increase in moisture over the next few days! Regional weather balloons already show a jump in precipitable water (i.e., a measure of atmospheric moisture). As a result, an uptick in thunderstorm coverage over the mountainous terrain is expected today, but energy for storms over the lower deserts is still only marginal. As distant storms collapse, breezy winds during the evening are possible in the Valley. The only air quality concern is that ozone could push into the lower Moderate range with the start of the work week and mostly sunny skies. By tonight, the weather picture changes. Currently, Hurricane Odile is over the Baja Peninsula at Category 2 strength with winds sustained at 100 mph. The tropical system will likely weaken substantially in the near-term as it moves over the higher terrain of Baja; however, its remnants are projected to drift into the Southwest. As this happens, there is the potential for periods of widespread and prolonged showers, with embedded thunderstorms, starting early Tuesday morning and lasting through Friday. At this time, total rainfall amounts could range between 1" and 2"+. Localized flooding in the deserts would be a concern, especially if stronger convection develops. Timing wise, the highest accumulations look to occur early Tuesday morning, Wednesday afternoon/evening, and Friday morning/early afternoon. All four major pollutants are anticipated to stay in the Good AQI after today. Check back tomorrow for the latest. Until then, have a good day! -J.Malloy

Current Conditions
Data Not Available

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