Air quality in Indianapolis

Central Regions: Ozone was all Good these past two days, and PM2.5 was almost all Good as well, except for yesterday the area had some Moderate in downtown Indianapolis, at all 3 sites. As of 12Z this morning, surface high pressure is over the Mid-Atlantic states. This surface high will push off to the east in advance of a cold front from the northwest. This front is currently just northwest of Chicago and will quickly move into northwest Indiana by 18Z this afternoon. By 00Z it will have crossed half the state, and finally around 06Z Thursday morning reaches the southern Indiana/Kentucky bor