From NWS
1929: Slow moving thunderstorms produced very heavy rain in a swath from north central through east central Iowa on the night of August 1-2. The highest reported overnight rainfall amounts included 3.75 inches at Cedar Rapids, 4.50 inches at Tipton, 4.97 inches at Marshalltown, 6.46 inches at Belle Plaine, and 8.35 inches at Toledo where nearly all of that amount fell in just two hours. Local rivers and streams, including the Iowa River and its tributaries, quickly jumped out of their banks and resulted in significant flooding across the area. Many homes and buildings were flooded and there were widespread reports of ‘highway and railway bridges washed away, stretches of track washed out, highways damaged, and much shocked grain carried away and farm animals drowned. Miles of railway were under water and many trains had to be detoured or suspended temporarily.’

2 August 1954 → Severe thunderstorms produced golf ball sized hail for 30 minutes in north central Kansas. One drift of hail measured 200 feet long, 70 feet wide and 3 feet deep. 2 August 1985 → An aircraft accident occurred at Dallas-Fort Worth International Airport at approximately 6 p.m. Neither the crew nor air traffic control was aware that below what appeared to be a rather insignificant thunderstorm existed a strong downdraft of cold, dense air. Upon final approach, the pilot of the Lockheed L-1011 ran into the microburstand was unable to lift out of it. He lost control of the aircraft, hitting several objects on the ground before finally crashing into a water tank near the runway. 133 people were killed and 31 were injured.

Posted under Weather History