June 2, 2015 6:45 AM EDT

Millions of Americans were under the threat of flooding Tuesday as severe storms brought torrential rain from the Gulf Coast to the Northeast—including areas already waterlogged by recent downpours.

Flood watches and advisories were in place from Washington, D.C., through to Boston as heavy overnight rain was forecast to continue until the early afternoon.

Up to three inches of rain was also forecast for Virginia and the Carolinas, while the northern Plains including Nebraska and Iowa were set for repeated rounds of heavier thunderstorms with wind and hail damage, and possibly even tornadoes.

“There’s a storm system centered over Nashville, Tennessee, pulling moisture out of the Gulf all the way up the East Coast,” Weather Channel meteorologist Kevin Roth said…

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