India, April 3 -- A firehose of moisture is likely to produce repeating thunderstorms along with torrential downpours over the middle of the US through this week, AccuWeather reported. Over a foot of rain may pour down from portions of Arkansas to Kentucky and Ohio, which likely trigger major and historic flooding, meteorologists have warned.

Intense rainfall is likely to affect more than 46 million people over the central US, of which at least 13 million will be within a high- to extreme-flood risk zone. There is also a risk of catastrophic flooding in some communities within the higher-risk zones.

From Wednesday night, March 2, heavy rain and flooding could start escalating. The downpours' normal west-to-east or northwest-to-southeast...