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The confirmed death toll continued to rise as survivors prepared to spend a third day Monday digging out of the rubble and coming to terms with the devastation left behind after a historic outbreak of tornadoes and severe weather that carved a path of destruction through several states.

It was the deadliest U.S. tornado outbreak in a decade, and one single storm complex tracked for some 250 miles.

(WATCH: What Caused the Deadly Tornado Outbreak?)

Dozens of people were confirmed dead in five states, and officials said more were presumed to have perished in storms that battered the South and Midwest Friday night into Saturday.

In the heavily damaged Mayfield, Kentucky, officials initially said 40 of 110 workers at Mayfield Consumer Products had been rescued, but spokesman Bob Ferguson said Sunday more than 90 people had now been located, but that eight people are confirmed dead and another eight remain missing, the Associated Press reported.

Here are the latest updates; check back frequently for new information as it comes in:

First Identities of Victims Revealed

Victims were being identified for the first time on Monday, providing more insight into the lives of those lost. Their stories were obtained by the AP:

-Oaklynn Koon, 2 months: Douglas Koon and his wife, Jackie, put their infant daughter in a car seat to try to protect her as the tornado struck their Dawson Springs, Kentucky, home directly. She and their other three children appeared to be OK after the tornado, despite the entire family being tossed from their home by the force of the twister, but Oaklynn began to have seizures on Sunday and may have had a stroke at the hospital, her parents said in a Facebook post. The family posted Monday morning that Oaklynn had passed away in the hospital, the youngest victim of the tornado outbreak.

-Lisa Taylor, 54: A florist who worked for 14 years at a Memphis flower shop, she had recently left to take a new career with the Transportation Security Administration at the airport. Friends described Taylor as a creative person who one customer described in a note left at the flower shop as "a light in a dark world." She died as the storms hit Orange Mound, Tennessee, Friday night.

-Brian Crick, 43: A judge for two western Kentucky counties. Crick went from a public defender to private practice before earning his judgeship in 2011. Crick died at his home in Muhlenberg County, Kentucky; His wife and three children survived the storm.

-June Pennington, 52: A mother of four and grandmother of nine, she spent much of her time with them, and caring for her many pets she adopted. "She didn’t love anything as much in life as her kids and grandkids," Christie Pennington told the AP. "She was truly selfless and loved whole-heartedly." Pennington died when a tornado struck the Dollar General store in Leachville, Arkansas, where she was an assistant manager.

-Clayton Lynn Cope, 29: An employee at the Amazon warehouse struck by the tornado in Edwardsville, Illinois, Cope was fond of spending time outside riding his motorcycle and loved being with his dog, Draco.

-Ollie Borgmann, 84: Described as a sweet "typical grandmother" by family, Borgmann lived in her Defiance, Missouri, home for decades with her husband, Vernon. Ollie passed away when a tornado struck their home; Vernon, also 84, was injured but is expected to recover.

Generators Will Be Used Amid Heating Shortage – Here's How to Use One Properly

With so many spending days and possibly weeks without power, cold nights will mean generators might be the only way to stay warm. But improper use of a generator can be deadly, so be sure to follow these guidelines for safe operation:

-Position generators outdoors and well away from any structure. Running a generator inside any enclosed or partially enclosed structure can lead to dangerous and often fatal levels of carbon monoxide. Keep generators positioned outside and at least 15 feet away from open windows so exhaust does not enter your home/business or a neighboring home/business.

-Keep the generator dry. Operate your generator on a dry surface under an open, canopy-like structure and make sure your hands are dry before touching the generator. Do not use the generator in rainy or wet conditions.

-DO NOT plug the generator into a wall outlet. NEVER try to power your house/business by plugging the generator into a wall outlet or the main electrical panel. Only a licensed electrician should connect a generator to a main electrical panel by installing the proper equipment according to local electrical codes. Make sure the electrician installs an approved automatic transfer switch so you can disconnect your home’s wiring from the utility system before you use the generator.

More tips can be found here.

Biden Will Travel to Kentucky Wednesday

President Joe Biden said he will view the damage in Kentucky firsthand on Wednesday when he travels to Mayfield and Dawson Springs, he announced Monday.

He also said he was working with local officials to ensure his visit doesn't distract away from the emergency response ongoing in those areas.

Biden pledged all federal resources necessary to aid with the recovery.

"We’re going to get this done," Biden said, according to the AP. "We’re going to be there as long as it takes to help."

74 Dead, 105 Unaccounted For in Kentucky

In a Monday morning press briefing, Kentucky Gov. Andy Beshear said at least 64 people in the state were killed in the tornado outbreak and 105 people remained unaccounted for. Ten additional deaths were confirmed in the state later Monday.

This brings the overall death toll for the outbreak to 87, with six deaths confirmed in Illinois, four in Tennessee, two in Arkansas and one in Missouri.

This exceeds the 76 deaths caused by tornadoes in all of 2020.

(WATCH: Kentucky NWS Meteorologist: 'This Sickens Me')

Kentucky Gov.: 1,000-Plus Homes Destroyed

More than 1,000 homes were destroyed by the tornadoes that swept through Kentucky during the outbreak, Gov. Andy Beshear told reporters.

(WATCH: Kentucky Tornado Damage Leaves Our Meteorologists Stunned)

The death toll is still unknown, as crews are still going door-to-door in a search that has been made more difficult by the sheer amount of debris in some areas.

"There are no doors," Beshear said, according to the AP.

Kentucky Residents Endure Freezing Night With No Heat

For those who still had livable housing, electricity was out for much of Mayfield, Kentucky, as temperatures dipped below freezing overnight Sunday. And heat might not be restored to residents for a long time, Mayfield Mayor Kathy Stewart O’Nan said Monday on "CBS Mornings."

"Our infrastructure is so damaged. We have no running water. Our water tower was lost. Our wastewater management was lost, and there’s no natural gas to the city. So we have nothing to rely on there," she told CBS, according to the AP. "So that is purely survival at this point for so many of our people."

(WATCH: Kentucky Tornado Survivors Speak Out: 'We Need Places to Go')

Some 25,000 homes and businesses remained powerless across the state of Kentucky on Monday morning, according to poweroutage.us.

More Than 20 Tornadoes Confirmed

As the National Weather Service continued the long process of surveying the damage from several long-track tornadoes, meteorologists had confirmed at least 20 tornadoes were in progress during the outbreak Friday night into Saturday morning. Notable tornadoes include:

-EF3: Edwardsville, Illinois

-EF3: Defiance, Missouri

As for the tornado that may have tracked for more than 100 miles from Arkansas into Kentucky – ravaging Mayfield, among other Kentucky towns – the damage survey is expected to take days due to the sheer length of the damage swath that will need to be examined.

(MORE: Record EF5 Drought Has Spanned Eight Years)

Updates below were compiled over the weekend as part of our live updates coverage.

Four Dead in Tennessee

At least four people lost their lives in Tennessee, according to a Sunday morning update from the state emergency management agency.

Two people died in Lake County, one fatality occurred in Obion County and one in Shelby County. Lake and Obion are in the northwest corner of the state, while Shelby is near Memphis.

A state of emergency was declared, and shelters remained open in Obion, Gibson and Sumner counties.

Drone Footage Shows Devastation in Dawson Springs, Kentucky

Much of the town of Dawson Springs is gone. Homes were wiped clean away, and survivors left with nothing.

The town's 2,600 residents include relatives of Kentucky Gov. Andy Beshear. The local funeral home bears his family name.

See the drone footage here.

Death Toll Rises at Amazon Warehouse

Six people are confirmed dead in the collapse of an Amazon warehouse in Edwardsville, Illinois, the AP reported.

(WATCH: Before-and-After Images Reveal Devastation)

One injured worker was airlifted to a hospital. There were 45 survivors.

Hundreds of Homes, Businesses Destroyed in Warren County, Kentucky

Officials were assessing the damage in Bowling Green and surrounding areas in Warren County.

Some 500 homes and 100 businesses were destroyed, according to numbers announced during a news conference with the governor late Saturday afternoon.

Federal Emergency Declared

President Joe Biden issued a federal disaster declaration for more than a dozen counties in Kentucky, authorizing the Federal Emergency Management Agency to coordinate all disaster relief efforts.

Counties under the declaration include Breckenridge, Bullitt, Caldwell, Fulton, Graves, Grayson, Hickman, Hopkins, Lyon, Meade, Muhlenberg, Ohio, Shelby, Spencer, and Warren.

Dozen People Confirmed Dead in Bowling Green, Kentucky

At least 12 people died in Bowling Green, Kentucky, where roofs were ripped off buildings, trees uprooted and homes left in splintered ruins.

Warren County Coroner Kevin Irby confirmed 11 deaths late Saturday afternoon, and said children were among the victims. Those were in addition to one death announced earlier.

Photo Found in Indiana May Have Been Carried More Than 125 Miles

A woman in New Albany, Indiana, said she found a photo stuck to the window of her car Saturday. She posted it on social media, and online sleuths jumped in to help find the owner, based on information written on the back of the black-and-white picture.

In an update, Katie Posten said she had been connected with a member of the family that the photo belongs to. They're from hard-hit Dawson Springs, Kentucky, about 127 miles southwest of New Albany, which is just across the Ohio River from Louisville.

Click here to read more of the story.

'Toughest Day of My Life'

Local officials at a press conference with Kentucky Gov. Andy Beshear became emotional talking about the damage in and around Mayfield.

"This is probably the toughest day of my life," Graves County Executive Judge Jesse Perry said, his voice breaking. "The only thing I can say to you all, at this time, what we need from everyone ... We need your prayers, we need your help."

(WATCH: Mayfield Resident: Tornado 'Destroyed Everything We've Got')

Drone Footage Shows Nursing Home Devastation

Parts of the roof and walls were torn off when a tornado struck the Monette Manor nursing home in Monette, Arkansas, about 20 miles east of Jonesboro.

At least one person was killed there and five injured, and an emergency management operator for Craighead County, where the nursing home is located, told weather.com Friday night that there was extensive damage in the area.

At least one other death was confirmed, at a Dollar General store in the nearby town of Leachville.

Winter Storms Can Have a Severe Side

The storm, named Atticus by The Weather Channel, brought severe weather, high winds, snow and rain as it trekked east.

It delivered the first measurable snow of the season Thursday and Friday to areas including Salt Lake City and Denver. Snow was estimated up to 3 feet in some spots in the mountains of southern Wyoming and Colorado.

In Minnesota, the state patrol responded to more than 136 crashes as of 4 p.m. Friday and more than 200 flights were canceled at Minneapolis-St. Paul Airport. More than 20 inches of snow fell in some areas, including the Twin Cities.

It's not unusual for severe weather to accompany a winter storm's warmer side.

"Winter storms often produce strong to severe thunderstorms by pulling moist, warm and buoyant air northward from the Gulf of Mexico," weather.com meteorologist Jonathan Belles said. "Those thunderstorms feed on the jet stream that fuels the storm system, growing taller and more tilted, and the storms are eventually pushed to spin by a change in winds from the ground to the jet stream level."

The Weather Company’s primary journalistic mission is to report on breaking weather news, the environment and the importance of science to our lives. This story does not necessarily represent the position of our parent company, IBM.