[ADEQ Forecasts] ADEQ Daily Air Quality Forecast for Thurs., May 31

Wed May 30 11:49:21 MST 2007

For more information, or if you have problems viewing the image, 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, MAY 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

TUE 05/29/2007

NONE   

Highest AQI Reading/Site

(Preliminary data only)

TODAY

WED 05/30/2007

NONE  

TOMORROW

THU 05/31/2007

NONE 

EXTENDED

FRI 06/01/2007

NONE  

O3*

45

RIO VERDE

64

MODERATE

59

MODERATE

66

MODERATE

CO*

16

PHOENIX SUPERSITE

13

GOOD

12

GOOD

14

GOOD

PM-10*

63

 WEST FORTY THIRD

65

MODERATE

73

MODERATE

75

MODERATE

PM-2.5*

46

DURANGO

34

GOOD

35

GOOD

38

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.

* 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, May 30:   Unusually sensitive people
should consider limiting prolonged or heavy exertion outdoors.   

Health message for Thursday, May 31:   Unusually sensitive people should
consider limiting prolonged or heavy exertion outdoors. 

Synopsis and Discussion

A nearly steady-state weather pattern exists over Arizona.  The axis of
an upper level ridge is located over the west coast of the U.S. and will
be slow to move east due to a blocking upper low and trough over the
north and central Plains states.  A stronger center of high pressure
aloft - currently located over Baja California Sur - will keep a
westerly flow going over Arizona.  The strong warming trend originally
forecast to begin today has been delayed until the weekend.  Under these
circumstances, one would expect highest concentrations of coarse
particles (PM-10) and ozone (O3) to be no higher than the mid-moderate
range of the Air Quality Index thru Friday.  -Reith 

**********************************************************************
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.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.azdeq.gov/pipermail/forecasts/attachments/20070530/d1bf67a7/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 9275 bytes
Desc: image001.jpg
URL: <http://lists.azdeq.gov/pipermail/forecasts/attachments/20070530/d1bf67a7/attachment.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image002.gif
Type: image/gif
Size: 9985 bytes
Desc: image002.gif
URL: <http://lists.azdeq.gov/pipermail/forecasts/attachments/20070530/d1bf67a7/attachment.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image003.gif
Type: image/gif
Size: 2691 bytes
Desc: image003.gif
URL: <http://lists.azdeq.gov/pipermail/forecasts/attachments/20070530/d1bf67a7/attachment-0001.gif>