A student made a video from a distance, including the sheltering.
After a week of torrential rains in some areas, it’s well to remember that very severe weather can occur east of the Appalachians. It’s not clear if climate change could make large tornadoes more common in the area, or if actually less frequent, as cold fronts from the north would become usually weaker.
There was a local story about flooded basements in Berwyn Heights, near College Park. I drove through the town, saw a little damage; but I noticed that the infrastructure looked heltter skelter. Some of these areas with flood problems have old infrastructure that has not been properly maintained.
It's well to remember that there was an EF4 tornado in La Plata, MD (on US 301) in southern Maryland in April 2002,crossing near this site today.