The U.S. Southwest was bracing for another surge of rain from the remnants of a tropical storm after intense flooding in southern Colorado over the weekend caused some northwestern New Mexico rivers to rise.

The San Juan River rose to one of its highest levels in history in Colorado, news outlets reporteds. The San Juan and Animas rivers were both running high in New Mexico, though below the flood stage, said meteorologist Brian Guyer of the National Weather Service's Albuquerque office.

Guyer said Colorado's flooding also caused Navajo Reservoir — which stretches from southwestern Colorado into northwestern New Mexico — to rise 3 feet so far, with more to come.

"That's a huge reservoir, so that's quite a bit of water," he said.

Meteorologists expect more rainfall through late Tuesday,

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