1915: An estimated F4 tornado moved northeast from northwest of Waterville, Iowa crossing the Mississippi River two miles south of Ferryville, Wisconsin. A man and his daughter were killed in one of three homes that were obliterated southwest of “Heytman,” a small railroad station on the Mississippi River. 60 buildings and eight homes were destroyed in Wisconsin. This tornado caused approximately $200,000 in damage. In addition to this tornado, another estimated F4 tornado moved northeast across Fayette and Clayton Counties in northeast Iowa. One farm was devastated, the house and barn leveled. Heavy machinery was thrown 300 yards. Clothing was carried two miles.
1948: The Columbia River Basin flood peaked on this date in the Northwest. The flood produced the highest water level in the basin since the flood there in 1894. The damage estimate for the 1948 flood was $101 million, and 75 lives were lost.