More heavy rain was headed for the Four Corners region this weekend after weeks of storms, NPR reported. The National Weather Service put flood watches in place for parts of Colorado, Utah and New Mexico.

Hundreds of people across the region have been forced from homes that were flooded or damaged, NPR reported. In Farmington, New Mexico, the Animas and San Juan rivers overflowed. Margret Heath said her grandmother's house was destroyed and the family barely made it to the top of a hill. "My grandma doesn't know how to swim," she said, NPR reported.

Thomas Donaldson, who runs a cleaning company in Farmington, said the damage in San Juan County looked like a movie scene. "It literally reminded me of movies of zombie apocalypse," he said, NPR reported. Dozens of homes and businesses in the Navajo Nation were also destroyed, NPR said.

Scientists say this year's strong El Niño played a part, NPR reported. This weekend, an atmospheric river, also called the Pineapple Express, is pushing more wet air into the area. "It stacks up hour after hour, day after day," said Jon Meyer, a climate expert at the Utah Climate Center, NPR reported.

The weather service office in Grand Junction, Colorado, said one to three inches of rain could fall in southwest Colorado and southeast Utah from Sunday morning into Monday morning. It warned that the ground is already soaked.

The Albuquerque office said parts of northern and west central New Mexico could get one to two inches, with close to three inches in the Tusas Mountains near Chama. Rivers will likely rise, it said.

What we know: Flood watches are in place across the region as more rain falls on soaked ground.
What we don't: How much more damage the new storms will cause, and no second outlet has confirmed the details beyond NPR and the weather service.