Severe storms with lightning, heavy rain and strong winds rolled through Philadelphia during the Democratic convention Monday night, leading city officials to urge political protesters and rally attendees to seek shelter and organizers to recommend that media members evacuate a tent outside the arena.

umbrella (Alexey Klementiev, ThinkStock)
umbrella (Alexey Klementiev, ThinkStock)

The Philadelphia Office of Emergency Management urged those in FDR Park to seek shelter beneath an interstate underpass after the National Weather Service issued a severe thunderstorm and flash flood warning for the city.

The park near the Wells Fargo Center is one of the main protest sites and was filled with both Bernie Sanders supporters and those listening to Green Party presidential candidate Jill Stein when the storm hit.

Protesters largely scattered as rain pelted the crowds gathered outside the arena. While dozens of Sanders supporters stood firm as delegate buses drove past the fences and they continued their chants of "Shut them down!" others ran for shelter.

Organizers also recommended that media members evacuate a tent in the parking lot of the Wells Fargo Center, saying that it was not designed "to fully protect inhabitants in the event of a direct lightning strike."

Video posted by members of the media showed the roof of the temporary tent swaying and water pouring in.

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