Especially heavy snowfall — up to nearly 14 inches (25 centimeters) — was expected in parts of Virginia and West Virginia, according to the National Weather Service.
In California, an atmospheric river — a long band of water vapor that can transport moisture from the tropics to more northern areas — was expected to move in late Wednesday, likely flooding urban areas across central and Southern California, according to the weather service.
About 65 Virginia National Guard soldiers were at facilities along the Interstate 95 and state Route 29 corridors and in southwest Virginia to support the storm response, guard officials said.
Meanwhile a separate storm system was expected to dump heavy snow on an area stretching from Kansas to the Great Lakes starting Tuesday night, the weather service said.
Appalachian Power, which serves 1 million customers in West Virginia, Virginia and Tennessee, said Tuesday it had 5,400 workers dedicated to restoring power.