The enormous storm has been raging since May 30.
Alberto caused flooding across much of the Southeast before making its way north, and a new weather system is bringing even more rain and flooding.
An area of low pressure near Mexico’s Yucatán Peninsula could morph into a tropical storm in the coming days.
Schools in the Northeast were shutting their doors ahead of heavy snow.
Italian astronaut Paolo Nespoli shared a timelapse of the storms over his home country.
“When Mother Nature gets to spinning, it can be an awesome but scary sight," NASA astronaut Jack Fischer tweeted.
Scientists at the Florida Institute of Technology filmed lightning at 7,000 frames per second.