ALBUQUERQUE, N.M. — Yet more flooding made parts of the normally arid Four Corners region look more like an ocean than a desert Monday as locals kept a wary eye on a forecast for still more rain ahead.

Damage in New Mexico alone after more than four days of flooding — only the latest in a deadly autumn of soaking rains in the U.S. Southwest — could total $300 million, Gov. Michelle Lujan Grisham said.

The latest town to evacuate was tiny Bluff in southeastern Utah after San Juan River flooding swamped parts of cities and towns upstream in Colorado and New Mexico.

With parts of his town of 250 underwater, Mayor Josh Ewing was worried by a forecast for yet more heavy rain this weekend. After a few days of sunny, dry weather, more rounds of rain are predicted Friday night and again on Sunday, according to the National Weather Service.

“It’s the second flood that really gets you, you know, because everything is completely saturated.…