Show t The Tle heaviest cloudburst In Illinois Illinois Illi Illi- nois history ry and certainly the most stud occurred on July 8 1031 Within six hours urs as much touch as 13 inches of rain ram fell in the north central Illinois area involving parts of McLean and Livingston counties Major floods re re- suited in the Vermilion and Mackinaw Macki naw river basis In the tha square mile central area of the storm millions tons of water water water-SO 80 billion equal to atomic bombs such as the one dropped en on US U.S. Department of f Agriculture studies show that because of conservation practices soil soU loss from the storm was reduced by 85 55 per ler cent Sheet erosion en non contour farms took away awa 73 0 tons of soil soU an acre a half half- inch off ott the land On contoured farms farns the tho loss 1033 was only 10 tons an acre or or tenth one inch of soil |