Eastern storm cuts power to tens of thousands as California braces for flooding

Storms dumped heavy snow and freezing rain on a swath of the eastern U.S. stretching from Kentucky to the nation's capital, causing hundreds of traffic accidents, knocking out power in places and threatening to flood waterways as temperatures began rising Wednesday. California, meanwhile, was bracing for an atmospheric river that could flood areas ravaged by the recent wildfires.

The storm system that cut a path from Kentucky to Maryland and points farther north on Tuesday brought more than 14 inches (37 centimeters) of snow to Iron Gate, a tiny Appalachian town in western Virginia, and 12 inches to White Sulphur Springs, West Virginia, a small city about 65 miles (105 kilometers) to the west, the National Weather Service said.

By Wednesday, more than 190,000 customers in Virginia and nearly 10,000 in North Carolina had lost electricity, according to PowerOutage.us. Appalachian Power, which serves a million customers in West Virginia, Virginia and Tennessee, said Tuesday that it had 5,400 workers trying to restore power.

The region’s airports received several inches of snow, according to Scott Kleebauer, a meteorologist with the weather service's Weather Prediction Center.

“After a pretty quiet few seasons here, things have kind of picked back up again,” he said.

Nearly 2,500 flights were canceled or delayed across the United States on Wednesday, including about 200 into Ronald Reagan National Airport near Washington, D.C., according to the flight-tracking site FlightAware.com.

School was canceled throughout Virginia for a second straight day, and districts in the Baltimore and Washington, D.C., areas also told students and teachers to take the day off Wednesday.

Flood threat

The snow-and-ice mix was expected to become rain by Wednesday afternoon as temperatures climb. Concerns about flooding emerged as rain and melting snow wash into rivers and streams in regions already saturated from previous storms.

A flood threat through Thursday morning stretched from eastern Tennessee to southwestern Virginia into other parts of South, the weather service said.

“Our main concern once we get into Thursday will be potential flooding impacts as we see rivers and streams swell with the combined impact of melting snowpack and rain at the same time.” said Vance Joyner, a weather service meteorologist based in Blacksburg, Virginia.

Hundreds of accidents

In Kentucky, snowy roads caused a head-on fatal crash Tuesday in Nelson County, south of Louisville. The driver lost control of their car going into a curve, crossed the center line of the road and hit an oncoming semi truck head on, according to the county's emergency management director, Brad Metcalf. The driver died at the scene.

In Virginia, where Gov. Glenn Youngkin declared a state of emergency, the state police reported about 850 crashes on Tuesday and Wednesday, dozens of which involved injuries. An agency spokesperson said it's unknown if the weather caused the crashes.

Maryland State Police reported 235 crashes and 185 inoperable or unattended vehicles.

In southern West Virginia, multiple crashes temporarily shut down several major highways Tuesday.

Mess to the west

Points farther west weren't spared the wintry mess. A separate storm system was expected to dump heavy snow on an area stretching from Oklahoma to the Great Lakes on Wednesday, the weather service said.

Government offices were closed in parts of Oklahoma, Kansas and Missouri, and some universities in those states and Iowa canceled classes.

On the West Coast, officials in Oregon's Multnomah County extended a state of emergency through at least Thursday, and five emergency shelters were open through midday Wednesday. Wind chill readings could dip to 10 degrees (minus 12 Celsius) in Portland, the weather service said.

California rains

California was bracing for another atmospheric river. The long band of water vapor that can transport moisture from the tropics to more northern areas was expected to come ashore late Wednesday, likely flooding cities and suburbs across central and Southern California, according to the weather service. Along with flooding, heavy snowfall was expected in the Sierra Nevada.

More than 700,000 sandbags have been arranged across central and Southern California, according to the California Department of Water Resources.

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Associated Press journalists from across the U.S. contributed to this report.