July 31
edit1913: The Royal Meteorological Institute of Belgium was officially formed as an autonomous institution.
1987: The Edmonton Tornado, the second-deadliest Canadian tornado of the 20th century, killed 27 people as it cut across Alberta.
1996: Typhoon Herb struck Taiwan as a Category 4 Typhoon, causing more than $5 billion in damage.
2022: A volcano warning is accidentally issued for a wildfire in Scotts Bluff County, Nebraska.