Rivers in Maryland

Northwest Branch at Kemp Mill

Montgomery County, MarylandNWS CLAM2USGS 01650500Sterling office

Below flood stage
1.67ftStage

Observed Tue, Sep 22, 2:45 AM EDT

Flood stage
9.00 ft
Record crest
15.89 ft1972

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood19.00 ft
Moderate flood12.00 ft
Minor flood9.00 ft
Action6.00 ft
  1. 19.00 ftWater reaches Randolph Road.
  2. 13.00 ftWater approaches a home on Kemps Mill Road.
  3. 12.00 ftKemps Mill Road begins to flood between Old Randolph Road and Glenallan Avenue.
  4. 10.50 ftWater covers the old bridge over Northwest Branch at Old Randolph Road.
  5. 9.00 ftBackyards of homes on Kemps Mill Road just south of Randolph Road are flooded.
  6. 7.00 ftWater begins to flood low-lying portions of the old Indian Spring Country Club.
  7. 6.00 ftThe upper portion of the Northwest Branch Trail is flooded. Lowland flooding begins along the creek but is affecting nothing other than the trail.

Crest history

79 crests on NOAA’s list since 1924.

#DateStage
1June 22, 197215.89 ft
2June 26, 200613.61 ft
3April 30, 201412.26 ft
4July 15, 197512.24 ft
5September 5, 197911.47 ft
6August 8, 195310.99 ft
7June 10, 201310.13 ft
8July 3, 202210.11 ft
9October 30, 201210.07 ft
10September 23, 20039.92 ft
11July 29, 20179.88 ft
12August 4, 19719.87 ft
13December 11, 20039.85 ft
14May 16, 20149.81 ft
15September 1, 19529.74 ft
16November 25, 19509.70 ft
17June 23, 20019.65 ft
18September 14, 19669.57 ft
19June 27, 20159.51 ft
20September 1, 20219.50 ft
21January 26, 19789.36 ft
22September 16, 19999.32 ft
23August 17, 20219.31 ft
24August 23, 19339.30 ft
25May 2, 20169.30 ft

Most recent crests

  • January 10, 2024: 9.26 ft
  • July 3, 2022: 10.11 ft
  • September 1, 2021: 9.50 ft
  • August 17, 2021: 9.31 ft
  • December 16, 2018: 9.27 ft
  • April 16, 2018: 8.72 ft
  • July 29, 2017: 9.88 ft
  • May 2, 2016: 9.30 ft
  • June 27, 2015: 9.51 ft
  • May 16, 2014: 9.81 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.