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E-M:/ Smog Alert

Enviro-Mich message from "Alex J. Sagady & Associates" <ajs@sagady.com>

Yesterday (Thursday) wasn't an ozone action/warning day, but the atmosphere
of northwestern Michigan and the Upper Peninsula got the better of 
MDEQ air pollution meteorologists on Thursday.

Unhealthy for Sensitive Groups -- Code Orange--- ozone air pollution 
ranged from Muskegon to Seney in the Upper Peninsula on Thursday.   A noteworthy 
air pollution event -- to the best of this commentator's knowledge, 
yesterday was the first USG ozone event over 85 ppb ever to be detected by 
the Peshawbestown ozone monitor in the Leelanau Peninsula (subject to 
later validation).  This monitor is operated by the Grand Traverse Band of Ottawa and Chippewa 

on Thursday...8 hour averages over 85 ppb, the level of the ozone standard

Seney National Wildlife Refuge    97  -- upper peninsula
Peshawbestown    90
Benzonia   97
Scottsville   100
Muskegon  90

all data is unvalidated...

Today (Friday), however, is an ozone action day in West Michigan

At Grand Rapids at 9:13 AM this morning, monitoring is 
showing Unhealthy for Sensitive Groups for PM 2.5, although
MDEQ has a generic advisory up that their monitors can be reading 
high or low because of technical problems.


GREAT NEWS!!!   There is now operating a 
Detroit, MI Midwest HAZECAM....here it is...


The Cam seems to be located just downriver from Cobo 
hall.... Note that this morning you cannot see clear details
on Belle Isle, just a short distance away because of haze.

This Detroit cam in Michigan is in addition to Seney's cam at 

Here is ozone/PM2.5 forecast content from MDEQ for Friday....



Michigan Air Quality Forecast

Thursday, June 23rd, 2005 through Friday, June 24th, 2005 

OZONE: 8-hr concentrations are forecasted to be in the Moderate range state wide on Thursday.  Readings Friday will be in the Unhealthy for Sensitive Groups (USG) range across West Michigan with levels in the Moderate range across the rest of the state.

PM-2.5: 24-hr concentrations are forecasted to be in the Moderate range.

Forecast Discussion:
Southwest winds on the backside of a high pressure area off to our southeast will bring unseasonably warm temperatures into Michigan to end the workweek.  High temperatures well into the 80s today will be in the 90s across much of the state tomorrow.  Along with warm temperatures, plenty of sunshine will also be seen the next two days.

With a west to southwest surface and upper level wind flow, our pollutant levels will also be on the increase.  Ozone levels will be in the Moderate range today and isolated readings in the Unhealthy for Sensitive Groups (USG) range is not out of the question.  More widespread USG Ozone levels will be seen across West Michigan tomorrow, therefore, an Ozone Action Day has been issued for tomorrow across that area.  Ozone readings should stay in the mid to high end Moderate range tomorrow across the rest of the state.  PM2.5 levels will be in the Moderate range today.  Levels in the mid to upper Moderate range can be expected tomorrow.

A cold front will move in from the north late Friday, into Saturday.  This will bring us a chance for scattered storms to start the weekend.  Ozone levels should drop down into the Good range Saturday with the increased cloud cover and slightly cooler surface and upper level temperatures.  PM2.5 concentrations Saturday will remain in the Moderate range.

Extended Forecast:
By Sunday it looks like our winds switch back to the southwest bringing us another round of unseasonably warm temperatures early next week.  This will again bring us the chance for elevated readings of both Ozone and PM2.5. 

Forecast updated by Stephanie Hengesbach: Thursday, June, 23rd, 2005
Next forecast update: Friday, June 24th, 2005 


Alex J. Sagady & Associates        http://www.sagady.com

Environmental Enforcement, Permit/Technical Review, Public Policy, 
Evidence Review and Litigation Investigation on Air, Water and 
Waste/Community Environmental and Resource Protection
Prospectus at:  http://www.sagady.com/sagady.pdf 

PO Box 39,  East Lansing, MI  48826-0039  
(517) 332-6971; (517) 332-8987 (fax); ajs@sagady.com

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