Air Quality Dust Risk Forecast Here in Maricopa County: MORNING STAGNATION

ISSUED ON: Monday, September 24, 2018  This proactive, risk-based air quality forecast is part of a statewide effort to help Arizona meet health-based standards. ADEQ produces this forecast, valid for areas within and bordering Phoenix, Monday through Friday. For details about this forecast and to learn more about ADEQ statewide forecasting, visit: http://www.azdeq.gov/forecasting  Dust Risk-Based Forecast | Maricopa County Updated On: 09/24/18 - 8:31 AM Tuesday Stagnation: Morning stagnation Wind: Westerly winds 5-10 mph Wednesday Stagnation: Morning stagnation Wind: Westerly winds 5-10 mph Thursday Stagnation: Morning stagnation Wind: Light and variable winds Friday Stagnation: Morning stagnation Wind: Southwesterly winds 10-15 mph Saturday Stagnation: Light morning stagnation Wind: Southwesterly winds 15-20 mph __________________________________________________________________________ Forecast Discussion: Calm weather conditions are expected through most of the week which will likely allow particulate levels be elevated during the morning hours. Afternoon heating should be enough to keep the atmosphere mixed well enough that we don't expect particulate levels to threaten the federal health standard. By Friday and Saturday, a low pressure system will begin to approach the west coast which should help improve ventilation and lower particulate levels. Overall, the dust risk is forecast to be Low through the forecast period. - R. Nicoll ADEQ Meteorologist

View the Maricopa County Dust Control Forecast >  

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