[ADEQ Forecasts] ADEQ Daily Air Quality Forecast for Sat., Mar. 31

[forecasts@lists.azdeq.gov]

VERY UNHEALTHY  (201-300)

 

UNHEALTHY (151-200)

 

UNHEALTHY FOR SENSITIVE GROUPS (101-150)

 

MODERATE (51-100)

 

GOOD (0-50)

For more information visit:

http://www.epa.gov/airnow/aqibroch

 

 




*LINK TO EXCEEDANCE & HEALTH STATEMENT INFO FOR THE 2005-06 & 2006-07
FORECAST SEASONS* <http://www.azdeq.gov/environ/air/ozone/pmstats.pdf> 


AIR QUALITY FORECAST FOR SATURDAY, MARCH 31, 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

 

FORECAST

DATE

 

NOTICES

(*SEE BELOW FOR DETAILS) 

 

 

 

 

AIR POLLUTANT

YESTERDAY

THU 03/29/2007

 

 

NONE 

 

 

 

 

 

 

Highest AQI Reading/Site

(Preliminary data only)

TODAY

FRI 03/30/2007

 

 

NONE

TOMORROW

SAT 03/31/2007

 

 

NONE

EXTENDED

SUN 04/01/2007

 

 

NONE

 


O3*


40


APACHE JUNCTION


49


GOOD


54


MODERATE


56


MODERATE

 


CO*

8


WEST PHOENIX

15

GOOD

20

GOOD

18

GOOD

 


PM-10*


53


MULTIPLE SITES


56


MODERATE


50


GOOD


48


GOOD

 


PM-2.5*


22


DURANGO


35


GOOD


30


GOOD


28


GOOD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

* O3 = Ozone      CO = Carbon Monoxide      PM-10 = Particles 10 microns
& smaller      PM-2.5 = Particles smaller than 2.5 microns

 

*"Ozone Health Watch" means that the highest concentration of OZONE may
approach the federal health standard.

"PM-10 or PM-2.5 Health Watch" means that the highest concentration of
PM-10 or PM-2.5 may approach the federal health standard.

"High Pollution Advisory" means that the highest concentration of OZONE,
PM-10, or PM-2.5 may exceed the federal health standard.

"DUST" means that short periods of high PM-10 concentrations caused by
outflow from thunderstorms are possible.

Synopsis and Discussion

A few more clouds and some gusty evening winds were the parting gifts
left behind by the low pressure system earlier this week that produced
some of the highest PM-10 levels in a couple of months.  Thursday
night's disturbance is now lighting up Texas in the way of severe
thunderstorm and tornado warnings.  The exact opposite is will be the
rule in the desert southwest through next week as high pressure
strengthens.  We will see afternoon temperatures in the upper 80s to low
90s through next Friday under mostly sunny skies and relatively light
winds.  This will lead to lower Particulate levels but possibly higher
Ozone levels.  This weekend looks great both weather and air
quality-wise.  Check back Sunday for next week's outlook.  Have a great
weekend!  -J.Paul

 

 

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