[ADEQ Forecasts] ADEQ AIR QUALITY FORECAST FOR SATURDAY, MARCH 28, 2009

[forecasts@lists.azdeq.gov]

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

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

Health message for Friday, March 27, 2009: Unusually Sensitive People
should consider limiting prolonged or heavy exertion outdoors.

Health message for Saturday, March 28, 2009: Unusually Sensitive People
should consider limiting prolonged or heavy exertion outdoors.
	
Synopsis and Discussion
   Very strong winds cause damage across the Valley on Thursday, with
downed tree limbs and a few broken power lines, but it was the dust that
was the biggest problem.  The site at West 43rd Ave, near the Salt River
bottom, exceeded the health standard for the second time in five days
due to strong sustained winds.  Unlike Monday, however, Friday appears
to have much less residual dust in the air.  That's great news for
people with respiratory issues.  This weekend looks much better as high
pressure slides east just enough to increase afternoon desert
temperatures to the mid to upper 80s on Saturday and Sunday.  Winds may
increase a bit Sunday afternoon as another disturbance slides south
through the Four Corners region, but we won't see winds this weekend
anywhere close to those on Sunday and Thursday.  Thus, most PM-10
monitors will likely slide into the "Good" range with a few locations in
the lower "Moderate" category.  Ozone, despite the strong winds on
Thursday, nearly reached that range at a couple of locations.  Thus,
we'll probable see low "Moderate" ozone on Saturday and Sunday.
Remember, the ozone forecasting season for Phoenix begins next Wednesday
(April 1st).  Check back on Sunday for look at the coming workweek's
weather and related air quality.  Until then, have a great weekend!
-J.Paul

**********************************************************************
NOTICE: This e-mail (and any attachments) may contain PRIVILEGED OR CONFIDENTIAL information and is intended only for the use of the specific individual(s) to whom it is addressed. It may contain information that is privileged and confidential under state and federal law. This information may be used or disclosed only in accordance with law, and you may be subject to penalties under law for improper use or further disclosure of the information in this e-mail and its attachments. If you have received this e-mail in error, please immediately notify the person named above by reply e-mail, and then delete the original e-mail. Thank you.