[ADEQ Forecasts] ADEQ Issues High Pollution Advisory for Thurs., March 26

[forecasts@lists.azdeq.gov]

http://www.azdeq.gov/ensemble.pdf

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

Health message for Wednesday, March 25, 2009: Unusually Sensitive People
should consider limiting prolonged or heavy exertion outdoors. 

Health message for Thursday, March 26, 2009: Active children and adults,
and people with respiratory disease, such as asthma, should limit
prolonged exertion outdoors.
	
Synopsis and Discussion
*A PM-10 HIGH POLLUTION ADVISORY HAS BEEN ISSUED FOR THURSDAY, MARCH 26,
2009*
   All local PM-10 sites were in the "Moderate" category on Monday, but
just a day later they've all fallen into the "Good" range.  That will
change in the next couple of days as another major wind event is slated
for Arizona on Thursday.  A strong disturbance will dive south into the
region on the backside of a large trough of low pressure.  This will
produce winds out of the northwest Thursday through early Friday.  Gusts
around 35-40 mph are possible at times Thursday afternoon.  There will
not be much moisture at all with this system, so blowing dust is likely
with low visibility at times in remote desert locations.  As a result,
we are issuing a PM-10 High Pollution Advisory for Thursday, March 26,
2009. 
   Ozone may experience a slight rise in concentrations ahead of this
system due to transport of precursor from the deserts west of the
forecast area.  Otherwise, values will remain in the upper "Good" range
the next several days.  Check back tomorrow for the latest.  Until then,
have a good day!  -J.Paul

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