On January 28, 1887, Army personnel posted on the western side of the then-Territory of Montana witnessed something astonishing. The soldiers had been sent to the Army Fort Keogh in the wake of the Little Big Horn massacre of Lt. Col. Custer’s 7th Cavalry. They had no clue that they were going to see something historic.
On this remarkable day the soldiers witnessed the falling of the largest snowflake ever, measuring a massive 15 inches wide by 8 inches thick!
According to scientific theories, these Giant snowflakes can in fact be formed easily. They are formed when a heavy, wet snow is falling with little wind. Under those conditions, flakes that have a slight surface sheen of water easily stick together and form larger flakes, sometimes baseball sized.
There may be many other larger snowflakes reported to have fallen during other snowstorms but, according to the Guinness Book of World Records, the largest ever flake to enter into their record was the one reported from Fort Keogh in the U.S. state of Montana.