Around 11 million Americans are under flood alerts Saturday evening as a "ring of fire" weather pattern continues to impact the eastern two-thirds of the country through the weekend.A flash flood emergency was issued near the Washington,

Thunderstorms riding along the periphery of a heat dome over the next week will bring the potential for flooding, damaging wind gusts and hail.

Slow-moving storms could bring up to 11 inches of rain, raising the risk of flash floods on Sunday, particularly in Illinois and Indiana, forecasters said.