(CNN) Two people died on Thursday as a result of a severe storm system that caused blizzard conditions in the US Midwest and torrential rain and flood threats in the South.

A 58-year-old woman in Ponchatoula, Louisiana, died after a tree fell on her camper trailer Wednesday night, Tangipahoa Parish Sheriff Daniel Edwards tells CNN affiliate WDSU.

Eleven inches of rain has fallen in areas of Washington Parish, Louisiana, and Walthall County, Mississippi, according to the National Weather Service office in Slidell, Louisiana.

NWS Meteorologist Bob Wagner told CNN the weather system stalled in this one small area for the last five or six hours.

"There's still rain sitting on the Louisiana Coast that could keep streaming on them for the next 3 to 6 hours," Wagner said. He said he's heard reports of some water rescues, but luckily the area is sparsely populated.

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