Nancy and Christian Schneider live in the Holly Lake Mobile Home park, where they haven't had electricity in their home since Hurricane Irma struck Florida over a week ago. Elissa Nadworny/NPR hide caption
A man walks through snow during the morning commute in Manhattan on Tuesday. Drew Angerer/Getty Images hide caption
When a single raindrop hits the ground, it causes tiny water droplets to shoot into the air, some containing bacteria. Joung et al. Nature Communications hide caption
An image of Western Hemisphere lightning storms, captured Feb. 14 over the course of one hour. Brighter colors indicate more lightning energy was recorded (the key is in kilowatt-hours of total optical emissions from lightning.) The most powerful storm system is located over the Gulf Coast of Texas. MATLAB/National Oceanic and Atmospheric Administration hide caption
A woman walks in whiteout conditions in Boston on Thursday. Sunday's forecast promises similarly daunting conditions, as a winter storm bears down on the Northeast. Scott Eisen/Getty Images hide caption
A composite image of Earth taken at 1:07 p.m. ET on Jan. 15 by the GOES-16 satellite. National Oceanic and Atmospheric Administration hide caption
Shanise McMorris grieves on the slab of her Hattiesburg, Miss., home after an early tornado hit the city on Saturday. Rogelio V. Solis/AP hide caption
A storm dumped rain on Hollister, Calif., on Tuesday and Wednesday, but appeared to have blown through by Thursday. Marcio Jose Sanchez/AP hide caption
A pileup begins at a street corner in Montreal. Willem Shepherd/Screenshot by NPR hide caption
A man clears the debris from a destroyed convenience store in Rosalie, Ala., on Thursday, the day after a reported tornado struck the area. Brynn Anderson/AP hide caption
A map from the National Weather Service shows tornado reports (red T), wind reports (blue W) and hail reports (green H) for Tuesday. More than 20 tornadoes were reported as a powerful storm system moved through the Southeast. Zoom in on the map here. National Weather Service/Google Maps/Screenshot by NPR hide caption
A satellite image of Hurricane Matthew off the coast of Florida. NOAA hide caption
People bike on the beach ahead of Hurricane Matthew in Atlantic Beach, Fla., on Wednesday. Droves of people in the U.S. have begun evacuating coastal areas ahead of the storm, which tracked a deadly path through the Caribbean in a maelstrom of wind, mud and water. Jewel Samad/AFP/Getty Images hide caption
Forecasters expect Hurricane Matthew to pass between Jamaica and Hispaniola before hitting parts of Cuba and the Bahamas. NHC/NOAA hide caption