MEDIAN FLOW RATE · 1 YEAR
4cfs 34.4% vs avg
Optimal band: 4–6 cfs
PERIOD HIGH
314cfs
PERIOD LOW
1cfs
RUNNABLE
37%
last 1 year in band
Precipitation History
Your History · NORTHWEST BRANCH ANACOSTIA RIVER NR COLESVILLE, MD
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Station Location
39.0655, -77.0294Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-05 00:00 UTC
Site #01650500·USGS
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