THE NEW YORK TIMES, June 18, 1946 

* Detroit River-Windsor F4 tornado disaster
* River Rouge, Michigan to Ontario, Canada

The top of the front page has a two column heading: "Tornado Hits River Rouge, Kills 23 in Detroit Area" with subhead. (see images) Coverage continues inside with 2 related photos. 
Complete with 46 pages, light toning at the margins, nice condition.

Background: The historical significance of the 1946 Detroit–Windsor tornado lies primarily in its status as a catastrophic transboundary disaster that exposed the deadly limitations of mid-20th-century severe weather tracking and international communication. Striking at a time before modern radar networks and unified warning systems existed, the tornado blindsided communities on both sides of the border, ultimately becoming the third-deadliest tornado in Canadian history with 17 fatalities in Ontario. Because the storm originated as a disruptive but non-fatal event in River Rouge, Michigan, before intensifying into a violent F4 monster upon crossing the Detroit River into Windsor, it served as a stark, real-world case study for meteorologists in both nations. The tragedy underscored the reality that severe weather recognizes no geopolitical borders, acting as a critical catalyst for the United States and Canada to eventually improve bilateral data-sharing, advance radar technologies, and coordinate synchronized emergency broadcast systems to ensure that an international border would never again act as a barrier to life-saving weather warnings.