Coastal flooding

A storm system that will move into the region on Friday will create strong, gusty winds will push water levels 3 to 4 feet above normal levels.  This means moderate to severe tidal flooding along the Chesapeake Bay, Potomac River, Atlantic side of Delmarva Peninsula, and the lower James and York Rivers near the Chesapeake Bay.  For this reason, Coastal Flood Warnings are in effect for multiple counties along the Virginia coast, with some Coastal Flood Watches still in effect, and likely upgraded to warnings by Friday morning.


Wave heights along the Chesapeake Bay will range 3 to 6 feet, with wave heights approaching one foot along the Atlantic side of Delmarva Peninsula.  Strong east-southeast winds will move across much of the Mid-Atlantic Friday morning.  The strongest winds will be along the coast, where wind gusts could exceed 50 mph.


Water inundation greater than 3 feet is significant. Widespread coastal flooding inundation is likely along the lower Tidal Potomac, and adjacent tidal tributaries. Numerous roads and structures are affected. Here are a few locations across coastal Maryland and Virginia.  MOST LOCATiONS ALONG THE CHESAPEAKE BAY WILL EXPERIENCE MODERATE TIDAL FLOODING.  Across the Lower Potomac, MAJOR COASTAL FLOODING is possible.  *** BE PREPARED TO MOVE TO HIGHER GROUND ***



Tide Height Forecasts | Friday & Saturday


York River at the Chesapeake Bay


James River at the Chesapeake Bay


Chincoteague Channel (Atlantic side)



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