Rivers in Virginia

Flatlick Branch at Chantilly

Fairfax County, VirginiaNWS CTYV2USGS 01656903Sterling office

Below flood stage
1.11ftStage

Observed Mon, Sep 28, 11:00 PM EDT

Flood stage
9.00 ft
Record crest
9.21 ft2011

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood15.00 ft
Moderate flood10.00 ft
Minor flood9.00 ft
Action6.00 ft
  1. 15.00 ftA few homes begin to flood along the stream between Route 50 and the mouth of the stream.
  2. 10.00 ftBuildings on the right bank begin to flood.
  3. 9.00 ftParking lots on the right bank begin to flood.
  4. 6.00 ftThe banks begin to overflow into nearby floodplain, but there is no impact to life or property.

Crest history

10 crests on NOAA’s list since 2008.

#DateStage
1September 8, 20119.21 ft
2July 12, 20138.06 ft
3July 8, 20157.07 ft
4May 11, 20086.99 ft
5May 1, 20146.99 ft
6August 15, 20196.71 ft
7September 1, 20216.68 ft
8October 13, 20116.62 ft
9May 26, 20096.26 ft
10July 21, 20186.14 ft

Most recent crests

  • September 1, 2021: 6.68 ft
  • August 15, 2019: 6.71 ft
  • July 21, 2018: 6.14 ft
  • July 8, 2015: 7.07 ft
  • May 1, 2014: 6.99 ft
  • July 12, 2013: 8.06 ft
  • October 13, 2011: 6.62 ft
  • September 8, 2011: 9.21 ft
  • May 26, 2009: 6.26 ft
  • May 11, 2008: 6.99 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Middle Atlantic River Forecast Center. Forecasts are not available. Only observed stages are available for this point. Stage may be affected by ice.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.