Norris Dam Marina
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Around Norris Dam Marina
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US
Typical flow by month
1958 to 2026
The water at Norris Dam Marina typically runs highest in March, at a median 114 cfs, and lowest in September, at 12 cfs. The highest flow on record for any single day is 7,400 cfs, in 1977.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 88 | 55 to 158 |
| February | 103 | 63 to 185 |
| March | 114 | 70 to 198 |
| April | 87 | 57 to 147 |
| May | 48 | 29 to 85 |
| June | 27 | 19 to 48 |
| July | 20 | 13 to 36 |
| August | 16 | 11 to 29 |
| September | 12 | 8.5 to 20 |
| October | 16 | 9.8 to 27 |
| November | 23 | 14 to 49 |
| December | 65 | 28 to 133 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 54 years of record. Statistics published by the US Geological Survey for Bullrun Creek near Halls Crossroads, TN (site 03535000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Current conditions
Today · Fri
85Go/ 100
FogHigh 65°F, low 47°FRain 0%Wind 9 kt, gusts 21
Streamflow
18 cfs
Normal (40th)
Water level
1.67 ft
Air quality
17 Good
SPRINGHILL monitor, 30 km
National Weather Service
Flood stage 10 ft.
Forecast from Open-Meteo global models (NOAA & ECMWF). Flood stages and forecasts: NOAA National Weather Service. Air quality: Knox County Dept. of Air Quality Management via EPA AirNow. Preliminary data, not verified. See full conditions →
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