At a Glance

The threat of severe weather ramped up ahead of Winter Storm Finn.Hundreds of flights were canceled or delayed at Boston, Newark and other airports Sunday.A total of 18.0 inches of snow fell in Ulster County, New York, as Winter Storm Ember moved through.

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As the Northeast cleans up from Winter Storm Ember, much of the rest of the country is bracing for what comes next.

A second storm, Finn, is taking aim at the Plains, Midwest and Great Lakes with snow, wind and dangerous travel conditions. Finn is also expected to bring severe weather to the South, including tornadoes, as well as the potential for flooding in the East.

A​ll of that could mean deadly weather heading into the week.

(​MORE: Finn's Severe Weather ForecastFinn's Flood Forecast)

Here are our updates from Sunday:

(5:30 p.m. ET) Updated Snowfall Totals In The Northeast

A total of 18.0 inches of snow is being reported in the hamlet of Milton, located in Ulster County, New York. Other from the Northeast include:

-​14.6 inches in Plattekill, New York.

-14.2 inches in Lowell, Massachusetts.

-14.0 inches in Corinth, Vermont.

-​13.0 inches in Sussex, New Jersey.

(5:00 p.m. ET) Cars Spin Out In Boston

From weather.com writer Jenn Jordan: Winter Storm Ember’s snow, slush and ice created travel impacts along highways in and around Boston.

Several vehicles, from cars to semitrailers, were involved in winter-related wrecks. Slick conditions led to spinouts, cars running off the road and a general driving experience of slipping and sliding.

for many travelers in that part of Massachusetts and much of New England.

(4:30 p.m. ET) Ice 101: How To Navigate It On Foot And In Your Car

Walking and driving on ice is sometimes a necessity, but there are ways to keep yourself and your family safe if you encounter it this week.

According to statistics from the Federal Highway Administration, 24 percent of annual weather-related vehicle crashes in the U.S. happen on snowy, slushy or icy roads.

So, a good place to start is by slowing down when you are walking or driving. Beware of roads that may look wet, but are actually frozen –

for driving and walking on ice.

(3​:20 p.m. ET) How Does A Winter Storm Bring Severe Weather?

From weather.com meteorologist : It's important to remember that when we talk about a "winter storm," it's most often specifically referring to the "wintry" SIDE of a large-scale storm system that's moving through. These storms usually have a north-south oriented cold front that can extend all the way to the Gulf of Mexico. So while there might be a blizzard going on in the Northern Plains, that same storm system can be running into air that's primed for severe weather in the Deep South, where the temps are much warmer and there's a lot more moisture around.

(​2:48 p.m. ET) Why Are Nighttime Tornadoes So Dangerous?

R​esearch has shown that nighttime tornadoes are more than twice as likely to be deadly as those that hit during the day. One reason for that is simple - people asleep in bed might not be aware of the weather.

That's why it's so important to have multiple ways to receive tornado warnings. This could include a NOAA weather radio or your smartphone with alerts enabled.

R​ead more on the dangers of nighttime tornadoes.

(​2:05 p.m. ET) Severe Weather Threat Amps Up

From weather.com meteorologist Orelon Sidney: We now have Winter Storm Finn bringing us a significant chance of severe weather for the Gulf Coast. I want to especially give a heads up to the central Gulf, from near New Orleans to Mobile into the Florida Panhandle. That is the area we're going to be looking chiefly for strong tornadoes during the overnight period from Monday night into Tuesday morning. I'm concerned about straight line winds doing damage, hail and possibly tornadoes, some of them potentially strong.

(​1:50 p.m. ET) 'Just Snow' Would Be Easier, Official Says

Some of the heaviest snowfall in New York was in the Hudson Valley, where observers in Orange County reported more than a foot in some spots. A​lan Mack, Orange County deputy commissioner of emergency management, told The Weather Channel he expects road conditions to be fine by Monday morning.

B​ut what's coming next has him more worried.

"​We'll see what happens Tuesday and Wednesday with Winter Storm Finn," Mack said. "​From a public safety standpoint we're concerned about just how much that snowmelt plus rain could give us some localized flooding in areas that were hard hit in July and still not recovered since then. it would be easier if it was just snow."

At least one person was killed in Orange County's , which left streets covered in water and trapped people in homes and cars.

(​1:34 p.m. ET) Massive Cleanup Underway In New Hampshire Before Next Storm Moves In

From weather.com writer Jenn Jordan: With the Monday morning commute and another winter storm looming, snow clearing crews in Salem, New Hampshire, were out in full force.

Parts of the state recorded more than a foot of snow over the course of the weekend as the area saw its first significant snowfall in nearly two years.

showed the efforts of emergency personnel putting shovels to sidewalks and rakes to roofs, hoping to clear the worst of it ahead of Monday morning’s commute.

(​11:30 a.m. ET) Winter Storm Ember In Photos

F​rom snowplows to snowblowers to canceled flights, photos show the impacts of Winter Storm Ember. Click through the slideshow below here to see them, or go to our photo page . We'll be adding more throughout the day, so be sure to check for more.

A plow clears snow from Broadway in Methuen, Massachusetts, on Sunday, Jan. 7, 2024. (Photo by JOSEPH PREZIOSO/AFP via Getty Images)

(11:06 a.m. ET) High Winds On Tap For Northeast, Including Boston and Philadelphia

From weather.com meteorologist Orelon Sidney: Winter Storm Ember is headed off the East Coast. You’re going to find decreasing snow but winds still remaining strong, in fact surprisingly strong. In some locations it’s going to be 20, 25, 30 mph, even a little bit more as we go into Monday morning.

(​10:25 a.m. ET) Here's Why We're Calling Finn A 'Kitchen Sink Storm'

From senior meteorologist : Finn's threats cover a broad spectrum and the storm is just getting underway in the West.

Areas from the Central Plains to the upper Midwest and parts of the western and northern Great Lakes will see a combo of snow and strong winds, contributing to low visibility and dangerous travel conditions Monday through Tuesday.

In the South, we expect severe weather to possibly produce damaging winds and tornadoes along the Gulf Coast Monday and Monday night, spreading into parts of Florida and the Southeast coast Tuesday.

Meanwhile, the Northeast will see heavy rain that could cause flooding Tuesday and Tuesday night, especially where the ground is saturated and where melting snow from Ember adds to runoff.

Strong winds will accompany the front, with gusts along the Northeast coast potentially hitting 40 to 50 mph Tuesday night, which might cause some tree damage and/or power outages. Coastal flooding is also a threat as those winds push water into the mid-Atlantic and Northeast coasts.

A look at potential snow and rainfall amounts from Winter Storm Finn.

(​10:12 a.m. ET) Did New York End Its Snow Drought?

I​n short, no.

"New York City saw a burst of snow late Saturday before precipitation changed to rain," weather.com senior meteorologist Chris Dolce says. "Central Park officially measured 0.2 inches, so the record-long stretch without an inch of snowfall in a single day continues and is now growing close to 700 days."

(​9:50 a.m. ET) What's Next? Scranton, Pennsylvania, Keeping An Eye Out For Flooding

W​ith the worst of Ember's impacts gone, some cities are turning all eyes toward the potential for flooding from the next system, Winter Storm Finn.

That includes Scranton, Pennsylvania, where , director of emergency management for Lackawanna County, spoke to The Weather Channel this morning.

"So, what we do now is we keep an eye on the river levels, which right now in Lackawanna County, they're pretty low," Taylor said. "But with the and the forecasted rain, we'll just keep an eye on those river levels and let the areas that have the frequent flooding know when they should act."

Meanwhile, earlier showed snow accumulating on vehicles, houses and drives in suburbs near Philadelphia before the storm turned into sleet and rain.

Suburbs near Philadelphia recorded up to 3 inches before the storm turned into sleet and rain.

(​8:34 a.m. ET) Snow And Ice Aren't The Only Worries

W​inter Storm Finn is bringing more than snow and ice.

Warmer air on Monday and Tuesday ahead of Finn is a set up for in the South and flooding and high winds for some areas along the East Coast.

S​evere thunderstorms are possible along the Gulf Coast from Texas into the Florida Panhandle Monday, spreading across the rest of the Southeast on Tuesday, with flooding rain possible along parts of the I-95 corridor up into the Northeast.

(8:25 a.m. ET) T​racking Winter Storm Finn And Winter Storm Ember

Be sure to check these links for the latest updates from our meteorologists:

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-​ Severe Weather Forecast

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(8:21 a.m. ET) More Than 2,000 Snow Vehicles Deployed In Massachusetts

The Massachusetts Department of Transportation is conducting snow and ice operations statewide.

The department has of equipment patrolling, spreading and plowing, according to an update posted earlier this morning.

The state's isn't currently showing any major incidents, but travelers should check road conditions before heading out.

A truck plows snow in a street in Closter, New Jersey, on Jan. 6, 2024.

(KENA BETANCUR/AFP via Getty Images)

(8:08 a.m. ET) Crashes, Stalled Vehicles Clog Interstate 90

Video showed several crashed and stalled vehicles in snowy darkness along Interstate 90 between Boston and Worcester, Massachusetts.

(7:53 a.m. ET) New York Drivers Asked To Stay Home

New York State Police advised motorists to if possible.

“If you must go out, give yourself extra time, take it slow and move over for any motorists, emergency and maintenance vehicles pulled over,” the agency said in a Facebook post. “Also, bringing essentials such as non-perishable food and water, a blanket, shovel, flashlight and cell phone and charger are crucial in the event of becoming stranded.”

(​7:30 a.m. ET) Flight Delays And Cancellations Hit Boston, Newark

M​ore than are already canceled or delayed this morning at Boston Logan International Airport, according to airline tracker FlightAware. About 100 flights have been affected so far at Newark Liberty.

M​ajor airlines including Delta, United and Southwest are waiving change fees at major airports in the path of Winter Storm Ember.

(7​:12 a.m. ET) More Than A Foot Of Snow In Some Areas

More than 12 inches of snow is being reported in the Orange County, New York, town of Unionville. Other from the Northeast include:

-​12.6 inches near Wantage Township, New Jersey.

-12 inches in Norfolk, Connecticut.

-12 inches in Blakeslee and Stroudsburg, Pennsylvania.

-​9.1 inches in Sterling, Massachusetts.

(7:07 a.m. ET) Power Outages Tick Up In Massachusetts

N​early 13,000 people are in Massachusetts, nearly all in Middlesex and Worcester counties, according to PowerOutage.us. Those counties include the cities of Concord, Lexington, Worcester and Leominster.

I​f you have a power outage and are running a generator or using another source of heat such as a fireplace, remember to protect yourself against carbon monoxide poisoning. Never use a generator indoors and always have working carbon monoxide alarms on every floor of your home. Read more carbon monoxide safety tips .

Weather.com reporter Jan Childs covers breaking news and features related to weather, space, climate change, the environment and everything in between.

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, .