POTOMAC RIVER AT HARPERS FERRY, WV
USGS 01620000 · Maryland · reports gauge height
Reading POTOMAC RIVER AT HARPERS FERRY, WV…
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USGS 01620000 · Maryland · reports gauge height
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, 10:45 PM EST · provisional USGS data
Steady · 24 h
No flow at this gauge. USGS does not publish discharge here, so there are no flow statistics either; it reports what is shown. Flow on the same river: POTOMAC RIVER AT SHEPHERDSTOWN, WV (USGS 01618000, 8.6 miles away).
Gauge height, last 7 days: 169 readings from Oct 29, 11:45 PM EDT to Nov 5, 10:45 PM EST; ranging 0.32 to 0.88 ft; latest 0.69 ft.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Gauge height (ft) |
|---|---|
| Nov 5, 10:45 PM EST | 0.69 |
| Nov 5, 9:45 PM EST | 0.71 |
| Nov 5, 8:45 PM EST | 0.72 |
| Nov 5, 7:45 PM EST | 0.7 |
| Nov 5, 6:45 PM EST | 0.67 |
| Nov 5, 5:45 PM EST | 0.6 |
| Nov 5, 4:45 PM EST | 0.51 |
| Nov 5, 3:45 PM EST | 0.45 |
| Nov 5, 2:45 PM EST | 0.4 |
| Nov 5, 1:45 PM EST | 0.35 |
| Nov 5, 12:45 PM EST | 0.33 |
| Nov 5, 11:45 AM EST | 0.32 |
| Nov 5, 10:45 AM EST | 0.32 |
| Nov 5, 9:45 AM EST | 0.34 |
| Nov 5, 8:45 AM EST | 0.36 |
| Nov 5, 7:45 AM EST | 0.38 |
| Nov 5, 6:45 AM EST | 0.39 |
| Nov 5, 5:45 AM EST | 0.45 |
| Nov 5, 4:45 AM EST | 0.5 |
| Nov 5, 3:45 AM EST | 0.56 |
| Nov 5, 2:45 AM EST | 0.61 |
| Nov 5, 1:45 AM EST | 0.66 |
| Nov 5, 12:45 AM EST | 0.7 |
| Nov 4, 11:45 PM EST | 0.72 |
| Nov 4, 10:45 PM EST | 0.73 |
| Nov 4, 9:45 PM EST | 0.71 |
| Nov 4, 8:45 PM EST | 0.71 |
| Nov 4, 7:45 PM EST | 0.69 |
| Nov 4, 6:45 PM EST | 0.66 |
| Nov 4, 5:45 PM EST | 0.61 |
| Nov 4, 4:45 PM EST | 0.53 |
| Nov 4, 3:45 PM EST | 0.45 |
| Nov 4, 2:45 PM EST | 0.38 |
| Nov 4, 1:45 PM EST | 0.36 |
| Nov 4, 12:45 PM EST | 0.35 |
| Nov 4, 11:45 AM EST | 0.35 |
| Nov 4, 10:45 AM EST | 0.34 |
| Nov 4, 9:45 AM EST | 0.34 |
| Nov 4, 8:45 AM EST | 0.35 |
| Nov 4, 7:45 AM EST | 0.38 |
| Nov 4, 6:45 AM EST | 0.42 |
| Nov 4, 5:45 AM EST | 0.46 |
| Nov 4, 4:45 AM EST | 0.51 |
| Nov 4, 3:45 AM EST | 0.56 |
| Nov 4, 2:45 AM EST | 0.63 |
| Nov 4, 1:45 AM EST | 0.68 |
| Nov 4, 12:45 AM EST | 0.75 |
| Nov 3, 11:45 PM EST | 0.77 |
| Nov 3, 10:45 PM EST | 0.77 |
| Nov 3, 9:45 PM EST | 0.79 |
| Nov 3, 8:45 PM EST | 0.77 |
| Nov 3, 7:45 PM EST | 0.75 |
| Nov 3, 6:45 PM EST | 0.68 |
| Nov 3, 5:45 PM EST | 0.61 |
| Nov 3, 4:45 PM EST | 0.54 |
| Nov 3, 3:45 PM EST | 0.48 |
| Nov 3, 2:45 PM EST | 0.43 |
| Nov 3, 1:45 PM EST | 0.39 |
| Nov 3, 12:45 PM EST | 0.39 |
| Nov 3, 11:45 AM EST | 0.38 |
| Nov 3, 10:45 AM EST | 0.39 |
| Nov 3, 9:45 AM EST | 0.39 |
| Nov 3, 8:45 AM EST | 0.4 |
| Nov 3, 7:45 AM EST | 0.42 |
| Nov 3, 6:45 AM EST | 0.46 |
| Nov 3, 5:45 AM EST | 0.51 |
| Nov 3, 4:45 AM EST | 0.56 |
| Nov 3, 3:45 AM EST | 0.61 |
| Nov 3, 2:45 AM EST | 0.7 |
| Nov 3, 1:45 AM EST | 0.74 |
| Nov 3, 12:45 AM EST | 0.79 |
| Nov 2, 11:45 PM EST | 0.8 |
| Nov 2, 10:45 PM EST | 0.82 |
| Nov 2, 9:45 PM EST | 0.84 |
| Nov 2, 8:45 PM EST | 0.81 |
| Nov 2, 7:45 PM EST | 0.78 |
| Nov 2, 6:45 PM EST | 0.75 |
| Nov 2, 5:45 PM EST | 0.69 |
| Nov 2, 4:45 PM EST | 0.64 |
| Nov 2, 3:45 PM EST | 0.6 |
| Nov 2, 2:45 PM EST | 0.58 |
| Nov 2, 1:45 PM EST | 0.57 |
| Nov 2, 12:45 PM EST | 0.57 |
| Nov 2, 11:45 AM EST | 0.56 |
| Nov 2, 10:45 AM EST | 0.57 |
| Nov 2, 9:45 AM EST | 0.56 |
| Nov 2, 8:45 AM EST | 0.55 |
| Nov 2, 7:45 AM EST | 0.56 |
| Nov 2, 6:45 AM EST | 0.56 |
| Nov 2, 5:45 AM EST | 0.58 |
| Nov 2, 4:45 AM EST | 0.6 |
| Nov 2, 3:45 AM EST | 0.6 |
| Nov 2, 2:45 AM EST | 0.61 |
| Nov 2, 1:45 AM EST | 0.63 |
| Nov 2, 12:45 AM EST | 0.65 |
| Nov 1, 11:45 PM EST | 0.67 |
| Nov 1, 10:45 PM EST | 0.67 |
| Nov 1, 9:45 PM EST | 0.67 |
| Nov 1, 8:45 PM EST | 0.68 |
| Nov 1, 7:45 PM EST | 0.67 |
| Nov 1, 6:45 PM EST | 0.68 |
| Nov 1, 5:45 PM EST | 0.67 |
| Nov 1, 4:45 PM EST | 0.66 |
| Nov 1, 3:45 PM EST | 0.65 |
| Nov 1, 2:45 PM EST | 0.65 |
| Nov 1, 1:45 PM EST | 0.63 |
| Nov 1, 12:45 PM EST | 0.62 |
| Nov 1, 11:45 AM EST | 0.62 |
| Nov 1, 10:45 AM EST | 0.61 |
| Nov 1, 9:45 AM EST | 0.62 |
| Nov 1, 8:45 AM EST | 0.61 |
| Nov 1, 7:45 AM EST | 0.61 |
| Nov 1, 6:45 AM EST | 0.62 |
| Nov 1, 5:45 AM EST | 0.63 |
| Nov 1, 4:45 AM EST | 0.65 |
| Nov 1, 3:45 AM EST | 0.66 |
| Nov 1, 2:45 AM EST | 0.68 |
| Nov 1, 1:45 AM EST | 0.7 |
| Nov 1, 1:45 AM EDT | 0.73 |
| Nov 1, 12:45 AM EDT | 0.74 |
| Oct 31, 11:45 PM EDT | 0.76 |
| Oct 31, 10:45 PM EDT | 0.76 |
| Oct 31, 9:45 PM EDT | 0.77 |
| Oct 31, 8:45 PM EDT | 0.76 |
| Oct 31, 7:45 PM EDT | 0.75 |
| Oct 31, 6:45 PM EDT | 0.73 |
| Oct 31, 5:45 PM EDT | 0.71 |
| Oct 31, 4:45 PM EDT | 0.68 |
| Oct 31, 3:45 PM EDT | 0.66 |
| Oct 31, 2:45 PM EDT | 0.63 |
| Oct 31, 1:45 PM EDT | 0.62 |
| Oct 31, 12:45 PM EDT | 0.62 |
| Oct 31, 11:45 AM EDT | 0.61 |
| Oct 31, 10:45 AM EDT | 0.63 |
| Oct 31, 9:45 AM EDT | 0.62 |
| Oct 31, 8:45 AM EDT | 0.62 |
| Oct 31, 7:45 AM EDT | 0.63 |
| Oct 31, 6:45 AM EDT | 0.64 |
| Oct 31, 5:45 AM EDT | 0.66 |
| Oct 31, 4:45 AM EDT | 0.68 |
| Oct 31, 3:45 AM EDT | 0.71 |
| Oct 31, 2:45 AM EDT | 0.75 |
| Oct 31, 1:45 AM EDT | 0.78 |
| Oct 31, 12:45 AM EDT | 0.82 |
| Oct 30, 11:45 PM EDT | 0.84 |
| Oct 30, 10:45 PM EDT | 0.85 |
| Oct 30, 9:45 PM EDT | 0.86 |
| Oct 30, 8:45 PM EDT | 0.86 |
| Oct 30, 7:45 PM EDT | 0.85 |
| Oct 30, 6:45 PM EDT | 0.82 |
| Oct 30, 5:45 PM EDT | 0.8 |
| Oct 30, 4:45 PM EDT | 0.77 |
| Oct 30, 3:45 PM EDT | 0.72 |
| Oct 30, 2:45 PM EDT | 0.69 |
| Oct 30, 1:45 PM EDT | 0.69 |
| Oct 30, 12:45 PM EDT | 0.69 |
| Oct 30, 11:45 AM EDT | 0.69 |
| Oct 30, 10:45 AM EDT | 0.7 |
| Oct 30, 9:45 AM EDT | 0.7 |
| Oct 30, 8:45 AM EDT | 0.7 |
| Oct 30, 7:45 AM EDT | 0.7 |
| Oct 30, 6:45 AM EDT | 0.72 |
| Oct 30, 5:45 AM EDT | 0.73 |
| Oct 30, 4:45 AM EDT | 0.75 |
| Oct 30, 3:45 AM EDT | 0.78 |
| Oct 30, 2:45 AM EDT | 0.81 |
| Oct 30, 1:45 AM EDT | 0.85 |
| Oct 30, 12:45 AM EDT | 0.88 |
| Oct 29, 11:45 PM EDT | 0.88 |
USGS keeps no flow statistics at this gauge, so there is no normal range for flow; the chart shows gauge height as USGS publishes it.
Map of USGS gauge 01620000 and the river around it
Where POTOMAC RIVER AT HARPERS FERRY, WV sits, with 4 other gauges on the same river.
No current water-temperature reading at this gauge, so no temperature guidance is given. Take a stream thermometer: the trout lines Maryland DNR uses are 65°F and 68°F.
Steady over 24 hours (gauge height −0.04 ft). 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.
Species list not on file for this gauge. Check the Maryland Department of Natural Resources: Maryland trout stocking · Maryland 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)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.
The National Weather Service has no flood-stage gauge here, so no official flood category is shown.
Checked Nov 5, 10:58 PM EST; 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.