Severe weather moves east after tornadoes, winds and wildfires killed at least 39 people

A dynamic storm that prompted foreboding predictions of dangerous weekend weather spawned tornadoes, dust storms and wildfires that killed at least 39 people and destroyed hundreds of homes and businesses.

The system that brought severe weather and flooding to the central and eastern part of the country over the weekend was moving off the East Coast on Monday morning with some showers lingering from the mid-Atlantic into eastern New England, according to Marc Chenard, a meteorologist with the National Weather Service.

Here’s what to know about the unusually erratic and damaging weather.

Another system is moving out of the Rockies and into the Plains in coming days, Mr. Chenard said. The threat of winter weather picks up on Tuesday into Wednesday in Kansas, Nebraska, Iowa, Wisconsin and Michigan, with significant snow and wind bringing hazardous conditions across that area. To the south, across portions of the Plains, there will be drier air, bringing fire weather risk.

The massive storm that began Friday earned an unusual “high risk” designation from meteorologists. Still, experts said it’s not unusual to see such weather extremes in March.

“It’s not that uncommon to get impacts across that many states, but this one was even on the stronger side of what we would typically see,” the meteorologist said.

There was a significant outbreak of tornadoes, with 46 tornadoes on Friday and 41 on Saturday, according to a preliminary count, Mr. Chenard said. There were no reports of tornadoes on Sunday, but there were many reports of wind damage, especially from West Virginia, Ohio, Pennsylvania and New York.

In Tylertown, Mississippi, tornadoes ripped tall trees in half and wiped out entire neighborhoods. Six people were killed and more than 200 were displaced, Gov. Tate Reeves said.

Hailey Hart and her fiancé, Steve Romero, hunkered down with their three huskies inside their 1994 Toyota Celica as a twister ripped apart their home Saturday. Mr. Romero said he prayed out loud and hugged Ms. Hart as the car rolled onto its side, windows shattering, before it landed on its wheels again.

“It was a bad dream come true,” he said. The couple escaped with only scratches.

Wayne County, Missouri, resident Dakota Henderson said he and others rescuing trapped neighbors found five bodies scattered in rubble outside what remained of his aunt’s house. Scattered twisters killed at least a dozen people in the state Friday, authorities said.

Wind-driven wildfires caused extensive damage in Oklahoma and officials in Oklahoma and Texas warned that parts of both states would again face an increased risk of fire danger this week.

Oklahoma officials said more than 130 fires were reported across Oklahoma on Friday and more than 400 homes across the state were damaged.

The Oklahoma Department of Emergency Management said Sunday evening that the Office of the Chief Medical Examiner had confirmed four fatalities related to the fires or high winds across the state.

Dust storms spurred by high winds have been deadly. Eight people died in a Kansas highway pileup involving at least 50 vehicles, according to the state highway patrol. Authorities said three people also were killed in car crashes during a dust storm in Amarillo, in the Texas Panhandle.

At least three people, including an 82-year-old woman, were killed in central Alabama when multiple tornadoes swept across the state.