NOTE: So far this year, NE Ohio has experienced ozone exceedances of the USEPA health-based standard on April 15, May 27, June 18, and July 3, 4, 6, 7, 8, and 15.  Hot summer, folks!

 
Northeast Ohio - Temperatures will be in the 90's tomorrow, and humidity will be very high.  The wind will be almost calm in Northeast Ohio.  Consequently, an Air Quality Advisory is being issued for the counties of Ashtabula, Cuyahoga, Geauga, Lake, Lorain, Medina, Portage, and Summit for Thursday, July 15.

Ozone will form in the afternoon and evening after it "cooks" in hot sunlight during the first part of the day.  Ozone occurs regionally.  Fine particle pollution may also form because the water molecules give the pollution something to latch onto.  Fine particles tend to form locally, often in urban areas, near heavy truck traffic, or near industrial sites.

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