A Flood Watch will be going into effect early Wednesday amid a threat of heavy rainfall tomorrow morning.
After a humid weekend that saw more than 3 inches of rain fall on parts of Arlington, the area got to enjoy a sunny and considerably less sweltering Tuesday. That’s all about to change, though.
A Flood Watch has been issued for Arlington, Falls Church and the immediate D.C. area due to the possibility of storms packing very heavy rainfall. The watch will take effect overnight and is set to expire at 11 a.m. Wednesday.
More, below, from the National Weather Service.
FLOOD WATCH IN EFFECT FROM 4 A.M. TO 11 A.M. EDT WEDNESDAY.
* WHAT…Flash flooding caused by excessive rainfall is possible.
* WHERE…The District of Columbia, in Maryland for the following areas, Central and Southeast Montgomery, Charles and Prince Georges, and Virginia, including the following areas, Arlington/Falls Church/Alexandria, Central and Southeast Prince William/Manassas/Manassas Park, Fairfax, Southern Fauquier, Spotsylvania and Stafford.
* WHEN…From late tonight through Wednesday morning.
* IMPACTS…Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS… – Showers are likely with isolated thunderstorms late tonight into Wednesday morning as a warm front lifts through the area. Rainfall will likely be heavy at times, with localized rainfall amounts around 2-4 inches within an hour or two possible. This may cause flash flooding in urban areas along with the possibility for creeks and streams to rise quickly out of their banks. – Please visit www.weather.gov/safety/flood for flood safety and preparedness information
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
A Flood Watch has been issued for portions of the DC Metro southward toward Fredericksburg from 4 AM-11 AM tomorrow (August 5th). Heavy rainfall may produce instances of flash flooding during that time, especially in urban areas. pic.twitter.com/bPdtKLCdnk
— NWS Baltimore-Washington (@NWS_BaltWash) August 4, 2026
