[ADEQ Forecasts] ADEQ Daily Air Quality Forecast - Tuesday, November 10, 2009

[forecasts@lists.azdeq.gov]

For more information, please visit our Web page:
http://www.azdeq.gov/ensemble.pdf

For transportation alternatives:
http://www.valleymetro.org


Health message for Monday November 09: Unusually sensitive people should consider reducing prolonged or heavy exertion.

Health message for Tuesday November 10: Unusually sensitive people should consider reducing prolonged or heavy exertion.


Synopsis and Discussion
Another stagnant day in progress out there, augmented by the overnight formation of a strong (6-7 deg C) surface-based radiation inversion (see http://www.phoenixvis.net/.  This, along with higher weekday PM-10 (coarse particle) emissions, has resulted in some elevated hourly readings this a.m. - including 104.3ug/m3 at the West Phoenix monitoring site, 144.8.0ug/m3 at Greenwood, 150.4ug/m3 at West Forty Third, and 156.0ug/m3 at Durango.  Fortunately, although a strong upper level ridge will remain over AZ thru Tuesday with rather stagnant air mass conditions continuing, a synoptic weather pattern change is on the horizon.  By Wednesday a large Pacific trough in the mid-latitude storm will move slowly toward the local forecast area with an increase in afternoon winds helping out with dispersion.  Strong and gusty winds are possible on Thursday; even though this will increase the potential for some afternoon blowing dust, a major dust event does not look likely at this point.  -Reith 


If you have any questions or comments regarding this forecast please contact:

Arizona Department of Environmental Quality
Office of Communications
1110 W. Washington St., Phoenix, AZ 85007
(602) 771-2215
ms15@azdeq.gov


 
 

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