Expect some flooding near the waterfront in Old Town tonight.
The National Weather Service has issued a Coastal Flood Advisory, set to go into effect at 8 p.m. and run overnight. The Potomac River is expected to be up to 2 feet above its normal levels at high tide, around 12:30 a.m., approaching the curb at the intersection of King and Strand streets.
Old Town last experienced significant coastal flooding just over a month ago.
More from the National Weather Service:
…COASTAL FLOOD ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 5 AM EST TUESDAY… THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS ISSUED A COASTAL FLOOD ADVISORY, WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO 5 AM EST TUESDAY. * LOCATIONS…SHORELINE IN THE DISTRICT OF COLUMBIA AND ARLINGTON COUNTY AND THE CITY OF ALEXANDRIA. * TIDAL DEPARTURE…ONE AND A HALF TO TWO FEET ABOVE NORMAL. * TIMING…AROUND THE TIME OF HIGH TIDE. HIGH TIDE AT WASHINGTON CHANNEL IS AT 12:12 AM OVERNIGHT. HIGH TIDE AT ALEXANDRIA IS AT 12:30 AM OVERNIGHT. * IMPACTS…SHORELINE INUNDATION IS EXPECTED ALONG PORTIONS OF THE SEAWALL ADJACENT TO OHIO DRIVE AND THE HAINS POINT LOOP ROAD AND NEAR THE TIDAL BASIN. WATER IS EXPECTED TO APPROACH THE CURB NEAR THE INTERSECTION OF KING STREET AND STRAND STREET IN ALEXANDRIA. MINOR SHORELINE INUNDATION UP TO ONE FOOT ABOVE GROUND IS POSSIBLE ELSEWHERE. PRECAUTIONARY/PREPAREDNESS ACTIONS… A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE. &&
Coastal Flood Warnings and Advisories were issued for most of our coastal zones as the next high tide will reach minor to moderate flooding. Visit our website for additional details: https://t.co/t54l4ELo2o pic.twitter.com/A7U6j8o5OI
— NWS DC/Baltimore (@NWS_BaltWash) November 18, 2019