A coastal flood warning is in effect for D.C., Arlington, Alexandria and Falls Church until 2 p.m. Saturday.
Weather forecasters say they're expecting one of the biggest tidal flood events in the past 10 to 20 years on Friday alongside a rainstorm that could set off floods away from coastal areas.
Here is how flooding has affected the area.
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BJ Forte
TIdal Basin
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Getty Images
WASHINGTON, DC – OCTOBER 29: Rising water covers a walkway along the Tidal Basin after heavy rains caused tidal flooding in the Mid-Atlantic region on October 29, 2021 in Washington, DC. A storm system with gusty winds and heavy rain is bringing significant coastal and tidal flooding to Washington DC, Virginia and Maryland. (Photo by Drew Angerer/Getty Images)
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WASHINGTON, DC – OCTOBER 29: A tree is partially submerged in the Potomac River after heavy rains caused tidal flooding in the Mid-Atlantic region on October 29, 2021 in Washington, DC. A storm system with gusty winds and heavy rain is bringing significant coastal and tidal flooding to Washington DC, Virginia and Maryland. (Photo by Drew Angerer/Getty Images)
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Getty Images
WASHINGTON, DC – OCTOBER 29: Rising water covers up stairs along the Tidal Basin after heavy rains caused tidal flooding in the Mid-Atlantic region on October 29, 2021 in Washington, DC. A storm system with gusty winds and heavy rain is bringing significant coastal and tidal flooding to Washington DC, Virginia and Maryland. (Photo by Drew Angerer/Getty Images)
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Jim Watson/AFP
A group of people walk on the sea wall as a man kayaks through the flooded parking lot in downtown Annapolis, Maryland, on Oct. 29, 2021.
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Jim Watson/AFP
A man rides a bicycle through flood waters in downtown Annapolis, Maryland, on Oct. 29, 2021.
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Getty Images
A man walks past an art shop through flood waters in downtown Annapolis, Maryland, on October 29, 2021. – The US National Weather Service implemented a flood watch for the cities of Baltimore and Annapolis as well as Anne Arundel, Baltimore and Howard counties. Washington, DC, and parts of Virginia faced the same alert. (Photo by Jim WATSON / AFP) (Photo by JIM WATSON/AFP via Getty Images)
