October 6 edit
1941: A major hurricane made landfall in southern Florida, killing at least 10 people in the US and Bahamas.
1981: NLM CityHopper Flight 431, a short-range passenger flight, flew into a tornado and broke apart near Moerdijk, Netherlands. All 17 on board were killed.
1985: Record rainfall caused flooding and landslides across Puerto Rico, killing 180 people, including 130 in a single village destroyed by a landslide.
2008: Tropical Storm Marco formed in the Bay of Campeche, Marco had tropical-storm-force winds extending only 11.5 miles (18.5 km) from the center of the storm, making it the smallest tropical cyclone on record.