HARPETH RIVER AT MCDANIEL, TN
USGS 03432100 · Tennessee · reports discharge (live), gauge height, water temperature, dissolved oxygen, pH, turbidity, specific conductance
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USGS 03432100 · Tennessee · reports discharge (live), gauge height, water temperature, dissolved oxygen, pH, turbidity, specific conductance
What the agencies suggest
Carry a pocket thermometer to monitor water temperatureNational Park Service
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 9:30 PM CST · provisional USGS data
Falling · 24 h
Discharge, last 7 days: 90 readings from Nov 2, 4:30 AM CST to Nov 5, 9:30 PM CST; ranging 0 to 565 ft³/s; latest 115 ft³/s.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Discharge (ft³/s) | Gauge height (ft) | Water temp (°F) |
|---|---|---|---|
| Nov 5, 9:30 PM CST | 115 | 2.29 | 62.8 |
| Nov 5, 8:30 PM CST | 118 | 2.31 | 63.1 |
| Nov 5, 7:30 PM CST | 124 | 2.34 | 63.3 |
| Nov 5, 6:30 PM CST | 129 | 2.37 | 63.5 |
| Nov 5, 5:30 PM CST | 134 | 2.4 | 63.7 |
| Nov 5, 4:30 PM CST | 141 | 2.44 | 63.7 |
| Nov 5, 3:30 PM CST | 145 | 2.46 | 63.7 |
| Nov 5, 2:30 PM CST | 150 | 2.49 | 63.5 |
| Nov 5, 1:30 PM CST | 154 | 2.51 | 63.3 |
| Nov 5, 12:30 PM CST | 166 | 2.57 | 63 |
| Nov 5, 11:30 AM CST | 174 | 2.61 | 62.8 |
| Nov 5, 10:30 AM CST | 182 | 2.65 | 62.4 |
| Nov 5, 9:30 AM CST | 193 | 2.7 | 62.2 |
| Nov 5, 8:30 AM CST | 208 | 2.77 | 62.2 |
| Nov 5, 7:30 AM CST | 220 | 2.82 | 62.6 |
| Nov 5, 6:30 AM CST | 236 | 2.89 | 63 |
| Nov 5, 5:30 AM CST | 254 | 2.97 | 63.3 |
| Nov 5, 4:30 AM CST | 270 | 3.04 | 63.7 |
| Nov 5, 3:30 AM CST | 289 | 3.12 | 64 |
| Nov 5, 2:30 AM CST | 314 | 3.22 | 64.4 |
| Nov 5, 1:30 AM CST | 337 | 3.31 | 64.6 |
| Nov 5, 12:30 AM CST | 348 | 3.35 | 64.8 |
| Nov 4, 11:30 PM CST | 372 | 3.44 | 64.9 |
| Nov 4, 10:30 PM CST | 403 | 3.55 | 65.1 |
| Nov 4, 9:30 PM CST | 434 | 3.66 | 65.3 |
| Nov 4, 8:30 PM CST | 467 | 3.77 | 65.7 |
| Nov 4, 7:30 PM CST | 508 | 3.9 | 65.8 |
| Nov 4, 6:30 PM CST | 539 | 4 | 66.2 |
| Nov 4, 5:30 PM CST | 551 | 4.04 | 66.2 |
| Nov 4, 4:30 PM CST | 565 | 4.09 | 66.2 |
| Nov 4, 3:30 PM CST | 548 | 4.03 | 66.2 |
| Nov 4, 2:30 PM CST | 443 | 3.69 | 66.2 |
| Nov 4, 1:30 PM CST | 345 | 3.34 | 66.2 |
| Nov 4, 12:30 PM CST | 213 | 2.79 | 66 |
| Nov 4, 11:30 AM CST | 174 | 2.61 | 65.7 |
| Nov 4, 10:30 AM CST | 189 | 2.68 | 65.3 |
| Nov 4, 9:30 AM CST | 150 | 2.49 | 64.9 |
| Nov 4, 8:30 AM CST | 124 | 2.34 | 65.1 |
| Nov 4, 7:30 AM CST | 37.9 | 1.71 | 64.4 |
| Nov 4, 6:30 AM CST | 17.7 | 1.46 | 63.3 |
| Nov 4, 5:30 AM CST | 9.45 | 1.31 | 64.4 |
| Nov 4, 4:30 AM CST | 4.5 | 1.18 | 63.7 |
| Nov 4, 3:30 AM CST | 3.93 | 1.16 | 64 |
| Nov 4, 2:30 AM CST | 3.65 | 1.15 | 63.5 |
| Nov 4, 1:30 AM CST | 3.93 | 1.16 | 62.2 |
| Nov 4, 12:30 AM CST | 3.39 | 1.14 | 64 |
| Nov 3, 11:30 PM CST | 2.68 | 1.11 | 62.8 |
| Nov 3, 10:30 PM CST | 2.06 | 1.08 | 63.1 |
| Nov 3, 9:30 PM CST | 2.06 | 1.08 | 62.6 |
| Nov 3, 8:30 PM CST | 2.06 | 1.08 | 62.6 |
| Nov 3, 7:30 PM CST | 1.87 | 1.07 | 62.4 |
| Nov 3, 6:30 PM CST | 1.87 | 1.07 | 62.6 |
| Nov 3, 5:30 PM CST | 1.87 | 1.07 | 62.6 |
| Nov 3, 4:30 PM CST | 1.87 | 1.07 | 61.9 |
| Nov 3, 3:30 PM CST | 1.87 | 1.07 | 61.5 |
| Nov 3, 2:30 PM CST | 1.87 | 1.07 | 62.4 |
| Nov 3, 1:30 PM CST | 1.53 | 1.05 | – |
| Nov 3, 12:30 PM CST | 1.87 | 1.07 | – |
| Nov 3, 11:30 AM CST | 1.87 | 1.07 | – |
| Nov 3, 10:30 AM CST | 1.87 | 1.07 | – |
| Nov 3, 9:30 AM CST | 1.87 | 1.07 | – |
| Nov 3, 8:30 AM CST | 1.87 | 1.07 | – |
| Nov 3, 7:30 AM CST | 1.87 | 1.07 | – |
| Nov 3, 6:30 AM CST | 1.7 | 1.06 | – |
| Nov 3, 5:30 AM CST | 1.7 | 1.06 | – |
| Nov 3, 4:30 AM CST | 1.7 | 1.06 | – |
| Nov 3, 3:30 AM CST | 1.87 | 1.07 | – |
| Nov 3, 2:30 AM CST | 1.7 | 1.06 | – |
| Nov 3, 1:30 AM CST | 1.7 | 1.06 | – |
| Nov 3, 12:30 AM CST | 1.7 | 1.06 | – |
| Nov 2, 11:30 PM CST | 1.7 | 1.06 | – |
| Nov 2, 10:30 PM CST | 1.53 | 1.05 | – |
| Nov 2, 9:30 PM CST | 1.53 | 1.05 | – |
| Nov 2, 8:30 PM CST | 1.53 | 1.05 | – |
| Nov 2, 7:30 PM CST | 1.53 | 1.05 | – |
| Nov 2, 6:30 PM CST | 1.53 | 1.05 | – |
| Nov 2, 5:30 PM CST | 1.38 | 1.04 | – |
| Nov 2, 4:30 PM CST | 1.53 | 1.05 | – |
| Nov 2, 3:30 PM CST | 1.38 | 1.04 | – |
| Nov 2, 2:30 PM CST | 1.23 | 1.03 | – |
| Nov 2, 1:30 PM CST | 0.97 | 1.01 | – |
| Nov 2, 12:30 PM CST | 1.23 | 1.03 | – |
| Nov 2, 11:30 AM CST | 1.1 | 1.02 | – |
| Nov 2, 10:30 AM CST | 0.74 | 0.99 | – |
| Nov 2, 9:30 AM CST | 0.74 | 0.99 | – |
| Nov 2, 8:30 AM CST | 0.55 | 0.97 | – |
| Nov 2, 7:30 AM CST | 0.38 | 0.95 | – |
| Nov 2, 6:30 AM CST | 0.2 | 0.92 | – |
| Nov 2, 5:30 AM CST | 0.06 | 0.88 | – |
| Nov 2, 4:30 AM CST | 0 | 0.84 | – |
Water temperature, last 7 days: 169 readings from Oct 29, 10:30 PM CDT to Nov 5, 9:30 PM CST; ranging 55.2 to 66.2 °F; latest 62.8 °F.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Water temperature (°F) |
|---|---|
| Nov 5, 9:30 PM CST | 62.8 |
| Nov 5, 8:30 PM CST | 63.1 |
| Nov 5, 7:30 PM CST | 63.3 |
| Nov 5, 6:30 PM CST | 63.5 |
| Nov 5, 5:30 PM CST | 63.7 |
| Nov 5, 4:30 PM CST | 63.7 |
| Nov 5, 3:30 PM CST | 63.7 |
| Nov 5, 2:30 PM CST | 63.5 |
| Nov 5, 1:30 PM CST | 63.3 |
| Nov 5, 12:30 PM CST | 63 |
| Nov 5, 11:30 AM CST | 62.8 |
| Nov 5, 10:15 AM CST | 62.4 |
| Nov 5, 9:15 AM CST | 62.2 |
| Nov 5, 8:15 AM CST | 62.2 |
| Nov 5, 7:15 AM CST | 62.6 |
| Nov 5, 6:15 AM CST | 63 |
| Nov 5, 5:15 AM CST | 63.3 |
| Nov 5, 4:15 AM CST | 63.7 |
| Nov 5, 3:15 AM CST | 64 |
| Nov 5, 2:15 AM CST | 64.4 |
| Nov 5, 1:15 AM CST | 64.6 |
| Nov 5, 12:15 AM CST | 64.8 |
| Nov 4, 11:15 PM CST | 64.9 |
| Nov 4, 10:15 PM CST | 65.1 |
| Nov 4, 9:15 PM CST | 65.3 |
| Nov 4, 8:15 PM CST | 65.7 |
| Nov 4, 7:15 PM CST | 65.8 |
| Nov 4, 6:15 PM CST | 66.2 |
| Nov 4, 5:15 PM CST | 66.2 |
| Nov 4, 4:15 PM CST | 66.2 |
| Nov 4, 3:15 PM CST | 66.2 |
| Nov 4, 2:15 PM CST | 66.2 |
| Nov 4, 1:15 PM CST | 66.2 |
| Nov 4, 12:15 PM CST | 66 |
| Nov 4, 11:15 AM CST | 65.7 |
| Nov 4, 10:15 AM CST | 65.3 |
| Nov 4, 9:15 AM CST | 64.9 |
| Nov 4, 8:15 AM CST | 65.1 |
| Nov 4, 7:15 AM CST | 64.4 |
| Nov 4, 6:15 AM CST | 63.3 |
| Nov 4, 5:15 AM CST | 64.4 |
| Nov 4, 4:15 AM CST | 63.7 |
| Nov 4, 3:15 AM CST | 64 |
| Nov 4, 2:15 AM CST | 63.5 |
| Nov 4, 1:15 AM CST | 62.2 |
| Nov 4, 12:15 AM CST | 64 |
| Nov 3, 11:15 PM CST | 62.8 |
| Nov 3, 10:15 PM CST | 63.1 |
| Nov 3, 9:15 PM CST | 62.6 |
| Nov 3, 8:15 PM CST | 62.6 |
| Nov 3, 7:15 PM CST | 62.4 |
| Nov 3, 6:15 PM CST | 62.6 |
| Nov 3, 5:15 PM CST | 62.6 |
| Nov 3, 4:15 PM CST | 61.9 |
| Nov 3, 3:15 PM CST | 61.5 |
| Nov 3, 2:15 PM CST | 62.4 |
| Nov 3, 1:00 PM CST | 63 |
| Nov 3, 12:00 PM CST | 62.6 |
| Nov 3, 11:00 AM CST | 61.5 |
| Nov 3, 10:00 AM CST | 60.6 |
| Nov 3, 9:00 AM CST | 60.1 |
| Nov 3, 8:00 AM CST | 59.9 |
| Nov 3, 7:00 AM CST | 60.1 |
| Nov 3, 6:00 AM CST | 60.3 |
| Nov 3, 5:00 AM CST | 60.6 |
| Nov 3, 4:00 AM CST | 60.6 |
| Nov 3, 3:00 AM CST | 60.6 |
| Nov 3, 2:00 AM CST | 60.8 |
| Nov 3, 1:00 AM CST | 60.8 |
| Nov 3, 12:00 AM CST | 60.8 |
| Nov 2, 11:00 PM CST | 60.8 |
| Nov 2, 10:00 PM CST | 60.8 |
| Nov 2, 9:00 PM CST | 60.8 |
| Nov 2, 8:00 PM CST | 60.8 |
| Nov 2, 7:00 PM CST | 60.8 |
| Nov 2, 6:00 PM CST | 60.6 |
| Nov 2, 5:00 PM CST | 60.4 |
| Nov 2, 4:00 PM CST | 60.1 |
| Nov 2, 3:00 PM CST | 60.4 |
| Nov 2, 2:00 PM CST | 59.9 |
| Nov 2, 1:00 PM CST | 59.4 |
| Nov 2, 12:00 PM CST | 58.8 |
| Nov 2, 11:00 AM CST | 58.5 |
| Nov 2, 10:00 AM CST | 58.3 |
| Nov 2, 9:00 AM CST | 58.1 |
| Nov 2, 8:00 AM CST | 58.1 |
| Nov 2, 7:00 AM CST | 58.1 |
| Nov 2, 6:00 AM CST | 58.1 |
| Nov 2, 5:00 AM CST | 58.1 |
| Nov 2, 4:00 AM CST | 58.1 |
| Nov 2, 3:00 AM CST | 58.1 |
| Nov 2, 2:00 AM CST | 58.1 |
| Nov 2, 1:00 AM CST | 58.1 |
| Nov 2, 12:00 AM CST | 58.1 |
| Nov 1, 11:00 PM CST | 58.3 |
| Nov 1, 10:00 PM CST | 58.3 |
| Nov 1, 9:00 PM CST | 58.3 |
| Nov 1, 8:00 PM CST | 58.3 |
| Nov 1, 7:00 PM CST | 58.3 |
| Nov 1, 6:00 PM CST | 58.5 |
| Nov 1, 5:00 PM CST | 58.5 |
| Nov 1, 4:00 PM CST | 58.5 |
| Nov 1, 3:00 PM CST | 58.6 |
| Nov 1, 2:00 PM CST | 58.5 |
| Nov 1, 1:00 PM CST | 58.6 |
| Nov 1, 12:00 PM CST | 58.6 |
| Nov 1, 11:00 AM CST | 58.6 |
| Nov 1, 10:00 AM CST | 58.6 |
| Nov 1, 9:00 AM CST | 58.6 |
| Nov 1, 8:00 AM CST | 58.8 |
| Nov 1, 7:00 AM CST | 59 |
| Nov 1, 6:00 AM CST | 59.2 |
| Nov 1, 5:00 AM CST | 59.4 |
| Nov 1, 4:00 AM CST | 59.5 |
| Nov 1, 3:00 AM CST | 59.7 |
| Nov 1, 2:00 AM CST | 59.9 |
| Nov 1, 1:00 AM CST | 60.1 |
| Nov 1, 1:00 AM CDT | 60.3 |
| Nov 1, 12:00 AM CDT | 60.4 |
| Oct 31, 11:00 PM CDT | 60.6 |
| Oct 31, 10:00 PM CDT | 60.8 |
| Oct 31, 9:00 PM CDT | 61 |
| Oct 31, 8:00 PM CDT | 61.2 |
| Oct 31, 7:00 PM CDT | 61.2 |
| Oct 31, 6:00 PM CDT | 61.2 |
| Oct 31, 5:00 PM CDT | 61.3 |
| Oct 31, 4:00 PM CDT | 61.9 |
| Oct 31, 3:00 PM CDT | 61.3 |
| Oct 31, 2:00 PM CDT | 61.2 |
| Oct 31, 1:00 PM CDT | 60.1 |
| Oct 31, 12:00 PM CDT | 59.4 |
| Oct 31, 11:00 AM CDT | 57.9 |
| Oct 31, 10:00 AM CDT | 57.7 |
| Oct 31, 9:00 AM CDT | 57.7 |
| Oct 31, 8:00 AM CDT | 57.7 |
| Oct 31, 7:00 AM CDT | 57.7 |
| Oct 31, 6:00 AM CDT | 57.9 |
| Oct 31, 5:00 AM CDT | 58.1 |
| Oct 31, 4:00 AM CDT | 58.5 |
| Oct 31, 3:00 AM CDT | 58.6 |
| Oct 31, 2:00 AM CDT | 59 |
| Oct 31, 1:00 AM CDT | 59.2 |
| Oct 31, 12:00 AM CDT | 59.5 |
| Oct 30, 11:00 PM CDT | 59.7 |
| Oct 30, 10:00 PM CDT | 59.9 |
| Oct 30, 9:00 PM CDT | 60.1 |
| Oct 30, 8:00 PM CDT | 60.3 |
| Oct 30, 7:00 PM CDT | 60.3 |
| Oct 30, 6:00 PM CDT | 60.4 |
| Oct 30, 5:00 PM CDT | 60.1 |
| Oct 30, 4:00 PM CDT | 59.9 |
| Oct 30, 3:00 PM CDT | 59.4 |
| Oct 30, 2:00 PM CDT | 58.8 |
| Oct 30, 1:00 PM CDT | 57.7 |
| Oct 30, 12:00 PM CDT | 56.1 |
| Oct 30, 11:00 AM CDT | 55.8 |
| Oct 30, 10:00 AM CDT | 55.4 |
| Oct 30, 9:00 AM CDT | 55.2 |
| Oct 30, 8:00 AM CDT | 55.2 |
| Oct 30, 7:00 AM CDT | 55.6 |
| Oct 30, 6:00 AM CDT | 55.9 |
| Oct 30, 5:00 AM CDT | 56.3 |
| Oct 30, 4:00 AM CDT | 56.5 |
| Oct 30, 3:00 AM CDT | 56.8 |
| Oct 30, 2:00 AM CDT | 57.2 |
| Oct 30, 1:00 AM CDT | 57.6 |
| Oct 30, 12:00 AM CDT | 58.1 |
| Oct 29, 11:00 PM CDT | 58.5 |
| Oct 29, 10:30 PM CDT | 58.8 |
Map of USGS gauge 03432100 and the river around it
Where HARPETH RIVER AT MCDANIEL, TN sits, with 5 other gauges on the same river.
Federal guidance. Tennessee Wildlife Resources Agency publishes no water-temperature line for trout anglers that we found. The lines below are the National Park Service's, federal guidance, not a Tennessee rule:
USGS publishes no daily statistics for this gauge, so the reading is not compared with the record.
Falling over 24 hours: discharge down 73.5%, from 434 to 115 ft³/s. Rising or falling means a change of more than 10% in discharge (or 0.2 ft of gauge height) over 24 hours; our rule of thumb, not a USGS class.
Under the federal 68°F line. Water 62.8°F now; the highest in the last 24 hours was 65.1°F. That is under the 68°F at which the National Park Service, at Grand Teton National Park, recommends anglers stop fishing in the afternoon (“cease fishing at 2 p.m. when water temperatures are likely to exceed 68°F”). Water warms through the afternoon, so check again later in the day: “Carry a pocket thermometer to monitor water temperature.”
High water temperatures prompt fishing advisory in Grand Teton National Park (29 July 2022) (National Park Service)Species list not on file for this gauge. Check the Tennessee Wildlife Resources Agency: Tennessee trout fishing and stockings · Tennessee fishing regulations.
Turn Around Don't Drown. “A mere 6 inches of fast-moving flood water can knock over an adult.” No flow number makes a crossing safe; if in doubt, stay out.
Turn Around Don't Drown (National Weather Service)Dissolved oxygen 7.4 mg/L at Nov 5, 9:30 PM CST; 7-day range 1–7.6 mg/L
Enough oxygen for coldwater fish: 7.4 mg/L meets the 6.5 mg/L EPA sets for coldwater fish (other life stages; eggs and fry need a 8 mg/L minimum).
Quality Criteria for Water 1986 (“Gold Book”): dissolved oxygen, Table 1; pH (U.S. Environmental Protection Agency)pH 7.6 at Nov 5, 9:30 PM CST; 7-day range 7.4–7.6
Within EPA's freshwater range: pH 7.6 is within the 6.5–9 range EPA gives for freshwater aquatic life.
Quality Criteria for Water 1986 (“Gold Book”): dissolved oxygen, Table 1; pH (U.S. Environmental Protection Agency)Turbidity 13.6 FNU at Nov 5, 9:30 PM CST; 7-day range 2.6–238 FNU
Water clarity: Turbidity measures the relative clarity of water: higher means murkier. No agency publishes a fishing threshold for it; compare with this gauge's own recent readings.
Turbidity and Water (U.S. Geological Survey)Specific conductance 388 µS/cm at Nov 5, 9:30 PM CST; 7-day range 263–559 µS/cm
Dissolved ions: Specific conductance rises with the ions dissolved in the water. No fishing threshold is published for it; compare with this gauge's own recent readings.
Conductivity (Electrical Conductance) and Water (U.S. Geological Survey)Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.
NWS observed 2.29 ft stage at Nov 5, 9:30 PM CST (NWS gauge MDNT1; its stage datum can differ from the USGS gauge height).
NWS has not set flood categories for this gauge.
Forecasts are not available. Only observed stages are available for this point.
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 10:24 PM CST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.