The National Weather Service said a “multitude of hazardous weather” would impact the U.S. over the next several days — from thunderstorms and potentially baseball-sized hail on the Plains, to heavy mountain snow in the West and dangerous heat in the South.

Two people died in Fairfax County after fierce thunderstorms swept the Washington region Friday, toppling trees, swamping roadways, knocking out power and unleashing a wind gust of 69 mph at Reagan National Airport.

At least 27 people are dead after tornadoes and severe weather hit Kentucky, Missouri and Virginia beginning on Friday, May 16, as states brace for more bad weather.

At least seven people are dead in Missouri after strong supercell storms that spurred tornado warnings slammed into St. Louis on Friday. Two others died in Virginia.

"A maturing central U.S. storm system is expected to produce another round of dangerous severe weather and instances of flash flooding today," the National Weather Service warned Monday. The forecast discussion added that "from a broader perspective," locally heavy rain was forecast to reach from the northern Plains to Texas.

Flood advisories were in effect as a dozen states were at risk of severe storms, tornadoes and hail. Some areas could see 2 months' worth of rain.

WASHINGTON (7News) — Wet weather has damaged many parts of DMV after a storm front on Tuesday, with rain expected to continue until early Wednesday morning and likely storms on and off for the remainder of the week.

Showers and storms will redevelop Wednesday afternoon and evening. There is a Marginal Risk for severe storms (1/5).