[ADEQ Forecasts] ADEQ Daily Air Quality Forecast - Tuesday, June 15, 2010

Mon Jun 14 11:57:34 MST 2010

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Health message for Monday, June 14: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.

Health message for Tuesday, June 15: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors. 

Synopsis and Discussion
As one upper level trough in the mid-latitude storm track moves east away from AZ today, another is forecast to develop over the western U.S. on Wednesday and remain in that position at least into the weekend.  Under these circumstances, low-level gradient winds over the metro area will work in concert with upslope winds due to daytime heating to produce breezy to gusty afternoon winds by Wednesday.  This situation is advertised to be similar to that of last week during which period local ozone levels were rather low - since accumulation was below average.  Also, it now appears that winds aloft will not be conducive to a significant influx of additional ozone or precursors from CA.  Thus, forecasted peak Valley ozone levels have been pared back some with highest concentrations mostly confined to the northeast and east portions of the metro area.  -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


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