1865: A tornado touched down in Philadelphia around 6 PM ET, killing one person and injuring 15 others. There was great destruction to property, with 23 houses blown down, damage to the Reading Railroad depot, with the water tank, carried 150 yards. Fairmont Park was damaged to the amount of $20,000.
1934: A tremendous dust storm affected the Plains as the Dust Bowl era was in full swing. According to The New York Times, dust “lodged itself in the eyes and throats of weeping and coughing New Yorkers,” and even ships some 300 miles offshore sawdust collect on their decks.
1953: A terrifying F5 tornado rips through downtown Waco, Texas, killing 114 people and injuring nearly 600 more. More than 850 homes, 600 businesses, and 2,000 cars are destroyed or severely damaged. Losses have been estimated at $41 million. The tornado is the deadliest in Texas history and the tenth deadliest in the US.
Source: NWS Office in Dallas/Fort Worth.
2014: Ice still remained on Lake Superior following the brutally cold winter of 2013-2014.
May 11th 2014, ice still remained on Lake Superior, the brutally cold winter of 2013-2014 nearly froze over the Great Lakes, 92% ice cover pic.twitter.com/4CsD29RMTG
— NWS Gaylord (@NWSGaylord) May 11, 2017
2017: Florida saw 138 active wildfires which burned 30,863 acres on this day in 2017.
— FFS_Jacksonville (@FFS_Jax) May 11, 2017