[ADEQ Forecasts] ADEQ Daily Air Quality Forecast for Mon., May 21

[forecasts@lists.azdeq.gov]

For more information, please visit our Web page:

http://www.azdeq.gov/environ/air/ozone/ensemble.pdf

AIR QUALITY FORECAST FOR MONDAY, MAY 21, 2007
This report is updated by 1:00 p.m. Sunday thru Friday and is valid
for areas within and bordering Maricopa County in Arizona

Health message for Sunday, May 20: Unusually sensitive people should consider limiting prolonged outdoor exertion.
 
Health message for Monday, May 21: Unusually sensitive people should consider limiting prolonged outdoor exertion.

Synopsis and Discussion
All’s quiet on the home front air quality-wise.  Ozone levels did creep into the mid “Moderate” range Saturday at a couple locations, but maximum concentrations are expected to take a dip the next few days as high pressure breaks down.  A large trough of low pressure will bully its way into the western U.S. with the center well to the north of Arizona.  However, it will sag far enough south to affect the flow across the state.  Say goodbye to the moisture that produced those thunderstorm buildups in eastern Arizona.  More importantly, say goodbye those triple digit temperatures
 at least until next Friday.  Phoenix will be in the mid to upper 90s much of next week with a westerly and southwesterly flow.  Still no rain is expected for the next 10 day in Phoenix, which would put us at 36 consecutive days and counting without measurable rain (Sunday marks 29).  Particulates were in the “Good” range Saturday, but we will likely see them increase to the low “Moderate” range this week, especially if Monday’s forecasted afternoon winds of 15-25 mph hold true.  Check back tomorrow for any new weather or air quality information.  Have a good day!   –J.Paul

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