These forecasts cover the northeastern area of the U.S. and most of the territory of the Canadian provinces of Ontario and Quebec. The computations use a high-resolution grid and include satellite NRT (near-real-time) data to account for the dispersion of pollutants generated by wildfires. The area encompasses 3.6 million sq km (1,390,500 mi2) and covers the states of Connecticut, Delaware, Kentucky, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, and the District of Columbia. Full forecasts for this region are available from the AWS Data Exchange portal (https://aws.amazon.com/marketplace/pp/prodview-dppkud7hnfzj6?sr=0-2&ref_=beagle&applicationId=AWSMPContessa) and represent hourly averages for over 100 species plus AQIs for PM2.5, PM1, PM10, SO2, O3, CO and NO2.