4-6, 1959: In Iowa, the record-breaking snowstorm on March 4-6 began with light snow in western Iowa on the morning of the 4th, then spread across the state and intensified with heavy snow falling from the night of the 4th through the 5th and into the early morning on the 6th in eastern Iowa. The snowfall and its subsequent effects were less severe in western Iowa and grew progressively worse, moving eastward. In central Iowa, snowfall amounts were generally 6 to 10 inches. In contrast, in eastern Iowa, a swath of about 12 to 20 inches of snow fell roughly from Appanoose County through Tama County and northeast to Allamakee County. Reported storm total snowfall amounts included 12.9 inches at Waterloo, 14.5 inches at Decorah, 16.0 inches at Oelwein, 17.0 inches at Oskaloosa, 17.6 inches at Dubuque, 19.8 inches at Marshalltown, where 17.8 inches fell in just 24 hours, and 22.0 inches at Fayette where 21.0 inches fell in 24 hours. Winds strengthened steadily during the storm, with speeds reaching 30 to 50 mph at times and causing extensive blowing and drifting of snow. Drifts 6 to 10 feet deep were common, and in northeastern Iowa, a few locations reported drifts 15 to 20 feet deep.

1959: Near blizzard conditions occurred over northern and central Oklahoma. Up to seven inches of snow fell and winds up to 50 mph created snow drifts 4 to 8 feet deep. In Edmond, a bus slid off the road into a ditch and overturned, injuring 16 people. The image below is from Storm Data.
