The third storm to race across the country this week has already started in the West, unleashing havoc on the highways and threatening mudslides in parts of California.

Valentine's Day could bring a dazzling display of the northern lights for stargazers in some parts of the U.S.

A storm has left tornado damage along the Gulf Coast and up to 1 foot of snow in the Plains and the Midwest.

ABC News' Matt Gutman shares the latest as heavy rain sweeps across the West Coast, causing flash flooding and a threat for mudslides in the regions hit hard by the wildfires last month.

ABC News’ Ginger Zee has the latest as two separate storms hit the country, bringing snow, ice, flash flooding and tornadoes to multiple states.

Two storms are forecast to traverse the country through the week’s end, bringing hazardous ice and snow to the Midwest, severe storms to the Gulf Coast and flooding to California.

As the Mid-Atlantic digs out from a snowstorm, a new winter storm is underway in the Plains that will move through the Midwest before slamming the East Coast.

ABC News Chief Meteorologist Ginger Zee shares the latest track and timing of the second winter storm hitting the country in days.

More than a million Americans are waking Wednesday up to an onslaught of snow and ice after a blitz of winter storms ravaged several states.

Snow, sleet and freezing rain are expected to continue pummeling the central Appalachians and mid-Atlantic states, while California readies for a storm that could flood areas ravaged by the recent wildfires

A dangerous mix of snow, freezing rain and ice is wreaking havoc across half the country, from the mid-Atlantic to Houston. It's been causing accidents on the road and weighing down power lines.

Major winter storms are bearing down on the U.S. this week.

ABC News’ Chief Meteorologist Ginger Zee has the latest as the first of three storms threatens to bring snow, ice and possible flooding to millions.

The first of two winter storms is forecast to hit Tuesday, stretching from Texas to Washington, D.C. The second begins Wednesday, bringing rain and snow from the Midwest to the East Coast.

The peak of the current solar cycle is ongoing, bringing spectacular views of the northern lights to several U.S. states.

ABC News Chief Meteorologist Ginger Zee shares the latest track and timing on the storms set to sweep across the country this week.

More than 18 million people were under winter storm alerts as of Sunday night, from North Carolina to New Jersey.

Drone footage captured a beach in Southampton, New York, covered in snow after a winter storm hit the region.

More than 18 million people across a large portion of the nation were under winter storm alerts on Super Bowl Sunday morning.

Over 90 million people are under winter weather alerts from the Midwest to the Northeast, as a significant winter storm brings snow and ice this weekend.

ABC News Meteorologist Somara Theodore reports on the storm impacting the Northeast, putting 15 million people under winter alerts.

The storm that hit the West Coast is making the trek across the country to bring a significant snowstorm to the Northeast this weekend.

As one winter storm leaves the Northeast area, another is expected to hit similar regions over the weekend, bringing several inches of snow.

Plus, an EF-1 tornado tore through Hart County, Kentucky, on Thursday.

Winter weather alerts were issued Thursday for 100 million people across 22 states, from Nebraska to Massachusetts, due to a storm that brought snow, sleet and freezing rain.

A winter storm has pummeled the Midwest and the Northeast with sleet, freezing rain and snow, leaving dangerous travel conditions for millions.

New Jersey Department of Transportation’s Chris Feinthel on what drivers should do in icy conditions.

Millions of Americans are hunkering down as a winter storm sweeps across the country and an icy mix creates hazardous conditions up and down the East Coast and parts of the Midwest.

ABC News’ Ginger Zee has the latest track and timing of the icy winter storm.

Two experienced hikers were rescued after an hourslong ordeal in which they became stranded in waist-deep snow and whiteout conditions on New Hampshire's challenging Mount Washington

ABC News Chief Meteorologist Ginger Zee has the latest on the storm system moving from the Midwest over to the Northeast.

Millions from Iowa to Massachusetts are bracing for the storm, with alerts issued in D.C., Philadelphia, Hartford and Boston. Meanwhile, an atmospheric river continues from California to Montana.

The FAA is investigating after a large chunk of ice slammed into a home in Palm Coast, Florida, smashing through the metal room and landing in the living room on Monday.

Winter weather will be absent for a large portion of the country as record heat blankets much of the South.

An atmospheric river is pounding Northern California with heavy rain and the threat of flooding before heading to Southern California.

An atmospheric river is pounding Northern California with heavy rain and the threat of flooding before heading to Southern California.

ABC News chief meteorologist Ginger Zee on what to avoid online when it comes to looking at your forecast.

ABC News Chief Meteorologist Ginger Zee tracks the latest path and timing as cold weather moves from the Midwest to the Northeast.

Numerous weather alerts are in effect from California to Montan, with deep snow, heavy rain and mudslides possible. Ice and snow are expected to move toward the East Coast starting Wednesday.

A flood watch is in place in cities like Washington, D.C., Philadelphia, New York and Boston, with rain and snow expected. An atmospheric river is also taking aim at northern California.

The storm put more than 50 million under wind alerts from North Carolina to Massachusetts. Further inland, winter weather advisories and storm warnings are in effect as heavy snow moves through.

A storm is bearing down on the southern Plains and Texas, where residents are bracing for severe weather, including flash flooding.

A storm is bearing down on the southern Plains and Texas, where residents are bracing for severe weather including flash flooding.

A storm system that brought rain and snow to Southern California will move into Texas and the South by Wednesday, bringing flash flood and severe weather threat.

The same system dropped up to an inch of rain on Southern California, causing flash floods and mudslides in the wake of the wildfires. Interstate 5 was closed early Monday due to heavy snow.

Less than a week after a massive wildfire shut down California's Interstate 5, the traffic artery was closed again due to heavy snow, authorities said.

A flood watch is in effect through the hillside areas in Los Angeles that have substantial burn scars from the wildfires.

ABC News’ Chief Meteorologist Ginger Zee has the latest on the rain and mudslide threat in the region after the devastating wildfires this month.

The heavy rain striking Southern California could trigger mudslides in “burn scar” areas following weeks of wildfires in the region.?

Rain was falling across Southern California on Sunday, bringing some relief to thousands of firefighters who have been battling multiple major wildfires in the LA area.