After Monday’s rainfall, Alexandria could see coastal flooding impacts along the Potomac River Tuesday.
The National Weather Service issued a Coastal Flood Advisory for Alexandria from 4 p.m. Tuesday to 8 p.m. Wednesday. The risk of coastal flooding on the Potomac River shoreline is higher during high tide. The next high tides will be 6:25 p.m. Tuesday and 6:38 a.m. Wednesday.
“Water is expected to approach the curb near the intersection of King Street and Strand Street in Alexandria,” the NWS said.
Alexandria was not spared from inland stormwater flooding during Monday’s rain, as water-covered streets were reported in the area of Glebe Road and Commonwealth Avenue. That’s where the city is preparing a major stormwater capacity upgrade project to address flash flooding during significant rainfall.
Glebe and Commonwealth underwater…
Again. Right after we drove through the street became fully covered and still rising. When this area is torn up for construction, let days like today be the reminder of why. #DrainALX pic.twitter.com/DhJHpcbgP5— DrainALX (@DrainALX) September 21, 2026
Forecasters expect chances of rain to continue through Wednesday, with odds decreasing by Thursday.
More from the National Weather Service:
Coastal Flood Advisory issued September 22 at 7:50AM EDT by NWS Baltimore MD/Washington DC
COASTAL FLOOD ADVISORY IN EFFECT FROM 4 P.M. TUESDAY TO 8 P.M. EDT WEDNESDAY.
* WHAT…Up to one and a half feet of inundation above ground level expected in low lying areas due to tidal flooding.
* WHERE…Shoreline in the City of Alexandria and Arlington County.
* WHEN…From 4 PM this afternoon to 8 PM EDT Wednesday, especially around the time of high tide.
* IMPACTS…Water is expected to approach the curb near the intersection of King Street and Strand Street in Alexandria..
* ADDITIONAL DETAILS…Tides one and a half to two feet above normal. The next high tide at Alexandria is at 6:25 PM and 6:38 AM.
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
