The same account later posted a photo of a rescue team helping people escape they're flooding apartments, as the lower level of the city's Main Street was nearly completely submerged.
The National Weather Service said a flash flood warning has been issued for the area through Sundya evening, calling it an "extremely risky situation" and urging motorists not to attempt to navigate flooded roads.
As the flooding subsided, Governor Larry Hogan toured the area and promised "every bit of assistance we possibly can". Heavy rain is expected to continue in the area through at least 6:15 p.m., the National Weather Service reported.
Hogan said the residents of Ellicott City "went through a horrific ordeal" in 2016, when the community was struck by flash flooding that killed two people and destroyed local businesses. "Anxiously waiting for the rain to stop and floods to slow", Kat Foster, who escaped the rising waters, wrote on Twitter, posting a video of the deluge. She said the staff announced they were closing around 3:45 because of a flood warning.
Hogan said he is heading to the scene.
"It's significantly higher than it was before", she told the newspaper, comparing the floodwaters to those of 2016. The department also said swift water units from as far away as Northern Virginia were coming to help.
The videos and images are quite devastating, especially for a community that endured this only two years ago.
One person is missing following the Ellicott City flooding, Howard County Executive Allan Kittleman said Monday morning.
The group of 10 then scrambled uphill through the woods toward the Castle Angelo, a castle-like home built in the 1830s into the rocks above Ellicott City, overlooking the Patapsco River. A spokeswoman in Baltimore County said the fire department has received dozens of calls about cars stuck in high water, as well as flooded basements. The area was still working to recover after being devastated by flooding in 2016.
In Towson, less than 15 miles north of Baltimore, two cars were inundated on a flooded road and Route 1 near White Marsh had to be shut down, according to The Towson Flyer. The state will continue to provide all available resources to assist Howard County with their response to this extremely risky and ongoing situation.