The reason is that climate change is warming the Arctic much more than it is heating up the Tropics, easing the pressure difference between the two, he said in an interview on Wednesday.
Three more rivers are expected to swell to critical levels by Thursday as water begins flowing downstream toward the coast.
SC governor Henry McMaster estimated his state has already suffered $1.2bn in damage. Trump said 1.6 million meals have been provided in North Carolina and another 400,000 are ready for victims in SC. The National Weather Service said the river could reach record flood levels late Saturday or early Sunday.
More than three dozen flood gauges in North and SC showed flooding, according to the National Weather Service.
The current push to save animals will, by necessity, be followed by a more grisly effort: The need to quickly and safely get rid of millions of carcasses that carry significant health risks. The women, Windy Newton, 45, and Nicolette Green, 43, drowned Tuesday in a prison transport van when sheriff's deputies couldn't open the doors of the vehicle, authorities said.
At least 27 of the deaths happened in North Carolina.
North Carolina's Department of Environmental Quality said on Tuesday that the walls of four pits holding hog waste, known as lagoons, had given way because of the storm, thirteen pits had overflowed due to rain, and nine were inundated by floodwaters.
Entire communities, including housing developments, shopping centers, farms, forests and roads, are completely engulfed by water.
Officials continue to be anxious about contamination and environmental hazards resulting from the storm, including the potential impact of coal ash, an industrial waste created by coal-burning power plants that can carry health risks.
More than three dozen flood gauges in North and SC showed flooding. The waters there have now receded, but only after flooding homes like Mary Mosely's. McMaster is asking for funding for half of the state's 46 counties.
The South Carolina governor estimated damage from the flood in his state at $1.2 billion.
High winds and flooding damaged two chicken farms that supply Tyson Foods Inc, the biggest US meat processor, spokesman Worth Sparkman said.
Policyholders can get up to $5,000 without an adjuster visit or providing additional documentation to their insurer, FEMA said.
While he was being briefed about the deadly hurricane-related flooding and damage, Trump asked, "How is Lake Norman doing?"