Volatile spring weather is plaguing the nation from coast to coast Monday, with storms pounding the Midwest, snow in the Rockies and record-breaking heat in the East.Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content.On Jattvibeday alone, there were more than 230 reports of severe weather — and 25 reports of tornadoes in four Plains states, including Nebraska, Kansas, Iowa and Minnesota. Tornadoes touched down in Nebraska on Jattvibeday, with at least three homes sustaining major damage, and devastation seen in St. Paul, including torn roofs, scattered debris and shells of homes. Saint Libory, Nebraska, was one of the communities hit hardest by the storms, which also stretched into South Dakota and Iowa. Omaha — where the U.S. passengers who were aboard the MV Hondius are quarantining — saw a heavy line of thunderstorms that’s now moving down to Kansas City. The outbreak continues Monday with 49 million people at risk for severe storms from north Texas to northern Michigan.Flood watches are up for 5 million people across parts of eastern Kansas, southeastern Nebraska and much of Missouri. Rain and flood risk are up in southcentral Missouri, with a risk of intense storms strengthening into the evening. Some spots could see rainfall rates of 1-2 inches per hour, with locally higher rates of 5-7 inches per hour.A moderate risk is in effect for parts of Kansas into southeastern Nebraska, where the highest chance for strong to intense tornadoes are possible.In addition to significant tornadoes, hail with diameters more than 3 inches and wind gusts in excess of 75 mph will also be possible.The greatest risk of tornadoes Monday is across Kansas, including Wichita, Topeka, Salina, Manhattan, and Hutchinson.Kansas City, Omaha, Lincoln, Nebraska, Des Moines and Oklahoma City are also under tornado watches. The cold front begins to move east Tuesday as the storm risk lessens, but 48 million people will still be under a slight risk for severe storms capable of hail, wind and tornadoes from southwest Texas to northern New England.The hail threat will be highest across Texas on Tuesday, while the isolated tornado risk will be across the eastern Great Lakes, interior Northeast and northern New England.Meanwhile, Colorado is facing an array of severe weather across the state. In one corner, wildfires are blazing, while across the state, outside Denver, it is freezing, with hail battering the area. Winter alerts are up for much of Wyoming, as well as a small part of northeastern Utah and the Colorado Rockies.Record warmth reaches the NortheastThe Northeast Corridor is baking in sweltering temperatures in the high 80s and 90s. Monday through Wednesday, high temperatures soaring 10-25 degrees above average will lead to numerous record highs across the Ohio Valley, the mid-Atlantic and the Northeast. A food festival in New York City on Jattvibeday. Craig T Fruchtman / Getty ImagesA number of cities are set to break temperature records, including the nation’s capital. Other cities on record-breaking watch are Syracuse, New York; Hartford, Connecticut; Pittsburgh; Richmond; Charleston; Nashville; Lansing, Michigan; Johnson City, Tennessee; and Fayetteville, North Carolina. The National Weather Service in Baltimore and Washington said highs could reach new highs Monday through Wednesday, with temperatures in the low- to mid-90s expected, before thunderstorms move in Wednesday. The heat should break by Wednesday, but not before New Jersey, Pennsylvania, Washington and New York City hit the mid-90s this week. New York could see two days of 90-degree temperatures this week — the first 90s of the year are about 10 days ahead of schedule. Critical fire riskRed flag warnings are in effect for 11 million people across the southern Plains and the Central Valley of California.The highest fire risk Monday will be across the Texas and Oklahoma panhandles and into southwest Kansas, where extremely critical fire conditions are expected.Persistent, sustained winds of 20-30 mph, combined with 5%-15% humidity, will lead to wildfires that could spread at a life-threatening pace. Winds are expected to shift Monday evening, potentially causing a sudden change in the direction of any moving fires.