Update on 7/6/26: Another Flood Watch has been issued, through midnight Tuesday. From the National Weather Service:
Flood Watch issued July 6 at 4:09AM EDT by NWS Baltimore MD/Washington DC
FLOOD WATCH IN EFFECT FROM 4 P.M. MONDAY TO MIDNIGHT EDT TUESDAY.
…The combination of a slow moving frontal zone with a tropical air mass in place will increase the risk of flash flooding this afternoon and evening…
* WHAT…Flash flooding caused by excessive rainfall is possible.
* WHERE…Washington D.C., including the following areas in Maryland, Anne Arundel, Calvert, Carroll, Cecil, Central and Southeast Howard, Central and Southeast Montgomery, Charles, Frederick, Northern Baltimore, Northwest Harford, Northwest Howard, Northwest Montgomery, Prince Georges, Southeast Harford, Southern Baltimore, St. Marys and Washington, Virginia, including the following areas, Albemarle, Arlington/Falls Church/Alexandria, Central and Southeast Prince William/Manassas/Manassas Park, Clarke, Culpeper, Eastern Loudoun, Fairfax, Frederick, Greene, King George, Madison, Northern Fauquier, Northern Virginia Blue Ridge, Northwest Prince William, Orange, Page, Rappahannock, Shenandoah, Southern Fauquier, Spotsylvania, Stafford, Warren and Western Loudoun, and panhandle West Virginia, including the following areas, Berkeley, Jefferson and Morgan.
* WHEN…From 4 PM EDT this afternoon through this evening.
* IMPACTS…Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS… – Multiple rounds of heavy rainfall are possible this afternoon and evening, some of which may occur over areas which recently experienced flooding rains. Slow storm motions and repeat thunderstorm activity will occur within a tropical air mass. Hourly rainfall rates could push into the 2 to 3 inch range in the strongest storms, with even higher instantaneous rates. – 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.
Earlier: A Flood Watch and a Severe Thunderstorm Watch has been issued for Arlington and the immediate D.C. area through early Monday.
Forecasters say there are concerns about strong thunderstorms developing later today and producing torrential rainfall, which could lead to flooding. There are already Flash Flood Warnings in areas well south and west of the metro area, with the bulk of the storm activity making its way east.
The watches are in effect until 1 a.m. Monday.
More from the National Weather Service:
A severe thunderstorm watch has been issued for parts of DE, DC, MD, NJ, PA, VA, WV until 1 AM EDT pic.twitter.com/RcUUVda8m3
— NWS Baltimore-Washington (@NWS_BaltWash) July 5, 2026
Flood Watch issued July 5 at 5:22PM EDT by NWS Baltimore MD/Washington DC
FLOOD WATCH IN EFFECT FROM 5:22 P.M. SUNDAY TO 1 A.M. EDT MONDAY.
* WHAT…Flash flooding caused by excessive rainfall is possible.
* WHERE…The District of Columbia, and portions of Maryland, including the following areas, Carroll, Central and Southeast Howard, Central and Southeast Montgomery, Frederick, Northwest Howard, Northwest Montgomery and Prince Georges, and northern Virginia, including the following areas, Arlington/Falls Church/Alexandria, Eastern Loudoun and Fairfax.
* WHEN…Until 1 AM EDT Monday.
* IMPACTS…Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS… – Thunderstorms will develop into an increasingly humid airmass this evening. This, combined with recent rainfall, may result in flash flooding, particularly along small streams and in urban areas. Localized totals of 2 to 4 inches of rain are possible. – 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.
We have expanded the Flood Watch into the Washington DC metro and north central Maryland through late this evening. Rainfall totals of 2-4" are possible from thunderstorms, which could result in flash flooding. Remain weather aware, and don't drive through flooded roads! pic.twitter.com/TkdArEXUzk
— NWS Baltimore-Washington (@NWS_BaltWash) July 5, 2026
