[ADEQ Forecasts] ADEQ Daily Air Quality Forecast for Thurs., Feb. 15

Wed Feb 14 11:32:50 MST 2007

If you have problems viewing the images, or would like more information,
please visit our Web page:

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

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 THURSDAY, FEBRUARY 15, 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

TUE 02/13/2007

NONE 

Highest AQI Reading/Site

(Preliminary data only)

TODAY

WED 02/14/2007

NONE 

TOMORROW

THU 02/15/2007

NONE

EXTENDED

FRI 02/16/2007

NONE

O3*

37

SOUTH PHOENIX

29

GOOD

33

GOOD

35

GOOD

CO*

23

WEST INDIAN SCHOOL

31

GOOD

35

GOOD

33

GOOD

PM-10*

45

BUCKEYE

49

GOOD

52

MODERATE

57

MODERATE

PM-2.5*

28

PHOENIX SUPERSITE

55

MODERATE

58

MODERATE

60

MODERATE

* 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.

Health message for Wednesday, Feb 14: Unusually sensitive people should
consider limiting prolonged exertion outdoors.

Health message for Thursday, Feb 15: Unusually sensitive people should
consider limiting prolonged exertion outdoors.

Synopsis and Discussion

Early morning scattered Valley showers have now been replaced by partly
cloudy skies.  The center of the low pressure system that brought more
rain to the Phoenix forecast area and snow to Arizona's high country is
now over central Utah and continuing to move east.  High pressure will
move over the region the next few days, resulting in mostly sunny skies,
relatively light winds and desert afternoon temperatures in the mid to
upper 70s Friday through Sunday.  All monitored pollution levels across
the Valley were in the "Good" range Tuesday.  Interestingly, however,
ozone levels increased slightly despite the clouds and breezy conditions
at times.  It's possible that there was some ozone transport entrained
in the disturbance.  Look for Particulates to increase slightly each day
through the weekend as the ground dries out a bit.  Check back tomorrow
for the latest!  Have a great Valentine's Day!  -J.Paul 

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