June 23
- 1944 – an unusual and violent tornado outbreak struck the Mid Atlantic region, killing at least 154 people. At least 100 of those deaths were from a long-track F4 tornado that moved across northern West Virginia, with 72 deaths in Shinnston and nearby farming communities. Another F4 tornado or tornado family, which killed 30 people, began near Wellsburg, West Virginia, cut across southwestern Pennsylvania, and continued into Maryland. Twenty-two people died in Greene County, Pennsylvania, including 10 in Chartiers. Yet another F4 tornado killed 17 people in the devastation of McKeesport.