MASON CITY, Iowa–So much rain fell so fast that the roof of the Walmart Supercenter in Mason City collapsed under the weight and force of the precipitation, according to Mason City police.
Police say the roof fell around 8am Saturday. People noticed a strong odor of natural gas following the collapse. One employee, who had been working outside the store, dove into a trailer to escape the debris. Rescue crews had to help him out. They say the man wasn’t seriously hurt. No one else was reported injured.
The National Weather Service reported 1.8 inches of rain fell over a three-hour period Saturday morning between 8 and 11.