The rising water levels have prompted rescues and road closures. The storm, which has killed at least 16 people, doesn’t show signs of letting up.

© Austin Anthony for The New York Times

It could be the biggest storm the area has seen so far this winter.

Atmospheric river conditions could bring multiple feet of snow to the northern Sierra Nevada. Other areas face a risk of flooding as the ground becomes increasingly saturated.

Cooler, wet weather is forecast to bring moisture to the parched landscape and reduce the fire threat. But heavy rainfall could also trigger flash floods in burn scars.

Meteorologists said there was a chance the winds would be as severe as those that fueled the Palisades and Eaton fires, but that different locations would likely be affected.

While many Angelenos have been devastated by the fires, others in the sprawling city have had to balance helping out with “normal life.”

All highways in northeastern Kansas were closed on Sunday evening, bringing traffic to a standstill in some parts.

Officials are bracing for a dreadful mix of sleet, snow and freezing rain that is forecast to hit from Kansas to Virginia this weekend.