Here's the video:
Critics are already jumping on the joke explanation, saying it shows poor taste. Jim Manley, former spokesperson for Senate Majority Leader Harry Reid, tweeted this morning that making jokes about the storm which led to more than 20 deaths and millions in property damage shows Bachmann "has really jumped the shark."
"Her comments are morally reprehensible, cynically political and an affront to people of faith," he wrote.
The Bachmann campaign did not immediately respond to a request for comment on Manley's take.