Station Name: NORTHEAST BRANCH ANACOSTIA RIVER AT RIVERDALE, MD
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 23 feet

Nearest Address:
5199 Riverdale Rd
Riverdale Park, MD 20737
Prince George's County

GPS Coordinates: 38.96025, -76.9259722

Nearby Water Temperatures

Flash Flood Warning issued August 5 at 11:55AM EDT until August 5 at 3:00PM EDT by NWS Baltimore MD/Washington DC

Effective: Wed August 5, 2026, 11:55 AM
Expires: Wed August 5, 2026, 3:00 PM

FFWLWX The National Weather Service in Sterling Virginia has issued a * Flash Flood Warning for... Southeastern Baltimore County in northern Maryland... * Until 300 PM EDT. * At 1155 AM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. The expected rainfall rate is 1 to 2 inches in 1 hour. Additional rainfall amounts of 0.5 to 1.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Baltimore... Sparrows Point... Dundalk... Essex... Rosedale... Edgemere... Turners Station... Eastpoint...

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.

Flood Watch issued August 5 at 10:15AM EDT until August 5 at 4:00PM EDT by NWS Baltimore MD/Washington DC

Effective: Wed August 5, 2026, 10:15 AM
Expires: Wed August 5, 2026, 4:00 PM

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of central and northern Maryland, including the following areas, in central Maryland, Anne Arundel. In northern Maryland, Southeast Harford and Southern Baltimore. * WHEN...Until 4 PM EDT this afternoon. * 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... - Showers and a few thunderstorms with very heavy rain are likely through this afternoon. Rainfall rates of 1 to 2 inches per hour may result in localized totals of 2 to 3 inches, which would result in flooding mainly in urban and poor drainage areas. - 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.

Flood Watch issued August 5 at 8:53AM EDT until August 5 at 4:00PM EDT by NWS Baltimore MD/Washington DC

Effective: Wed August 5, 2026, 8:53 AM
Expires: Wed August 5, 2026, 4:00 PM

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of central and northern Maryland, including the following areas, in central Maryland, Anne Arundel. In northern Maryland, Southeast Harford and Southern Baltimore. * WHEN...Until 4 PM EDT this afternoon. * 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... - Showers and a few thunderstorms with very heavy rain are likely through this afternoon. Rainfall rates of 1 to 2 inches per hour may result in localized totals of 2 to 3 inches, which would result in flooding mainly in urban and poor drainage areas. - 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.