A little more than a week after dramatic flooding played out in Phoenix, Tucson and Las Vegas, meteorologists are warning people in the U.S. Southwest to prepare for another onslaught of rain.

The remnants of Odile, which slammed into Mexico as a hurricane this weekend, are expected to bring as much as 7 inches of rain into the region through Thursday. Forecasters expect the worst to begin Wednesday. 

(FORECAST: Track the Southwest Flood Threat)

Tucson could see the heaviest rain, but forecasters warn people in Phoenix should expect rain and gusty wind, too.

Residents flocked to fire stations in Mesa and Phoenix to get sandbags to place them around their homes as protection against floodwaters.

"It flooded my whole property, my horse pens, and my garage was under about 2 feet of water," Roger Fuller told the Associated Press. "This time around, we're trying to keep the water off the property. Hopefully, it will work."

This will be the second time in less than two weeks a tropical system that impacted Mexico will take an unusual path into the desert Southwest. On September 8, the remnants of Norbert moved into the region, killing two people in Tuscon, and damaging interstates near Las Vegas.

MORE ON WEATHER.COM: U.S. Southwest Flooding Early September 2014