One photo taken during the catastrophe has touched the hearts of all of Americans.
The image features a small group of elderly ladies, up to their waists in water in a nursing home.
One woman even appears to be knitting as she awaits rescue and there's a cat can be seen staying dry while perched on the back of a sofa.
La vita Bella nursing home in Dickinson Texas is almost underwater with nursing home patients pic.twitter.com/oCNkrgoRZY— Timothy J. McIntosh (@DividendsMGR) August 27, 2017
The photo was tweeted with this urgent message: "La Vita Bella nursing home in Dickinson, Texas, is almost underwater."
Timothy McIntosh, who tweeted the image, is the son-in-law of the nursing home's owner.
“We knew it was a 'life-or-death' situation,” he told Inside Edition. “You're talking about people in wheelchairs, that are on oxygen, and the water is up to their chests.”
They were all lifted to safety by a helicopter.
Social media is flooded with other desperate postings from people pleading for help.
A photo of a stroke victim came with the message: "Can anyone help this elderly bedridden sweet lady? Water is rising around her hospital bed inside her home."
A photo of a little boy trapped on a roof, seeking shelter under a quilt, came with a heartbreaking message posted to Facebook: "Anybody please my friend is losing faith. She feels like they are running out of time. Please she has five kids."
A frantic plea for help was posted on YouTube in the early hours of Sunday morning with the victim asking, “Could somebody please find me some help? Please!”
A frantic mom posted a photo of the American flag and a Marine Corps flag on her roof, with the message: "Need rescue!! Adult female, 5 yr and 2 yr old." They were ultimately saved.