Major heat to start to July with mid to upper 90s possible in the usual warm spots on the 1st. Heat continues into Saturday with a cold front Saturday afternoon or at night with strong to possibly severe storms. We probably clear out by Monday for a dry 4th with high pressure building down from the Great Lakes.
While it took some time to find, this paper explains why the MADIS range test that the Gladstone site uses is so flawed. NYC is a chronically bad type of site mentioned below. The trees covering the ASOS has been an ongoing issue since the 1990s. http://www.thinkmind.org/articles/geoprocessing_2019_1_10_30010.pdf
Range tests are not perfect. The record high United States temperature would fail MADIS’s range test, although it would pass MesoW- est’s test. Both MADIS and MesoWest further emp