[ADEQ Forecasts] ADEQ Daily Air Quality Forecast For Tuesday, June 23, 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, June 22: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors. 

Health message for Tuesday, June 23: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors. 
 
Synopsis and Discussion
Several factors are coming together that should impact local ozone levels in a negative (upward) fashion.  The upper level trough that has been overhead for several weeks is forecast to be shunted to the west by Tuesday as a westward extension of the Bermuda High approaches.  As a result, low-level southwesterly gradients are advertised to become southerly and weaken thru Wednesday with even a periodic southeasterly component at times. No significant cloud cover will be present thru Wednesday and daytime high temperatures will exceed 105 degrees F each day.  There is the potential for an outflow boundary to reach the metro area from the east as early as Tuesday evening, an event that usually precedes spikes in local ozone concentrations by 24 hours.  Of course, Ozone 2009 has been anything but a typical season thus far, so will amend forecast accordingly if the aforementioned factors do not yield the normally predictable results.

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