TUCSON, Ariz. (KGUN9/CNN/AP) -- For the past few days Candace Mayfield has been glued to her computer, checking in on friends and watching videos of children being rescued from rooftops.
Mayfield moved to Catalina, Arizona in June, but had lived in the Baton Rouge area and New Orleans for decades.
In some areas of Louisiana, entire neighborhoods are underwater. The unprecedented flooding is all too familiar to Mayfield, who lost everything in Hurricane Katrina.
"I couldn't see past that day," Mayfield said. "I did not know that there was going to be a tomorrow."
Over the weekend more than 20,000 people had to be rescued from their cars and homes.
"We have thousands of homes, that have never taken any water, that have flooded severely," said Louisiana Governor John Bel Edwards. "And it's been difficult to get people to leave their homes, because they think that they're safe. But you can throw all of the experience out when you break the records as we have in Louisiana."
More than 11,000 people are spending the night in shelters. Mayfield says her friend even opened up his movie studio, Celtic Studios, so people have a place to sleep.
To make it through the storm 10 years ago, Mayfield relied on donations and help from her dad. Now she wants to do something for the people of Baton Rouge.
"It's not just rescuing these people. It's these people are going to have months of rebuilding their homes, their lives," Mayfield said. "I mean these people are walking out with nothing but the clothes on their back."
People sometimes not realize, Mayfield said, that the flooding victims might not be left with anything and may need basic supplies like diapers, pots and pans and other basic supplies.