[ADEQ Forecasts] ADEQ Daily Air Quality Forecast - Thursday, April 01, 2010

[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 Wednesday, March 31: Unusually sensitive people
should consider reducing prolonged or heavy exertion. 

Health message for Thursday, April 01: No health impacts are expected.


Synopsis and Discussion
A PM-10 HEALTH WATCH REMAINS IN EFFECT UNTIL MIDNIGHT
The approach and arrival of a large and powerful upper level trough and
its accompanying surface cold front will bring a major weather change to
the Valley today and Thursday.  Strongest sustained winds aloft - 30-45
mph in 5-10K' layer - are expected to arrive over the metro area by 5:00
p.m. and then persist into the late night hours.  As a result, an
increasing amount of transported/suspended/blowing dust is still
expected to occur over the Valley during the late afternoon and evening
period and the PM-10 Health Watch issued for today will remain in effect
until midnight.  On Thursday showers and a few thunderstorms along with
plunging temperatures are on tap.  These conditions will help return air
pollutant concentrations back into the good range of the Air Quality
Index Thursday and Friday.  -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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