GUNPOWDER FALLS AT GLENCOE, MD
USGS 01582500 · Maryland · reports discharge (live), gauge height
Reading GUNPOWDER FALLS AT GLENCOE, MD…
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USGS 01582500 · Maryland · reports discharge (live), 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, 7:20 PM EST · provisional USGS data
Below normal for Nov 5 Steady · 24 h Below NWS action stage
Discharge, last 7 days: 185 readings from Oct 29, 8:20 PM EDT to Nov 5, 7:20 PM EST; ranging 66.4 to 71.6 ft³/s; latest 71.6 ft³/s; shaded band: typical range (25th–75th percentile) for each date.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Discharge (ft³/s) | Gauge height (ft) | Normal, 25th–75th (ft³/s) |
|---|---|---|---|
| Nov 5, 7:20 PM EST | 71.6 | 0.85 | 91–194 |
| Nov 5, 6:25 PM EST | 71.6 | 0.85 | 91–194 |
| Nov 5, 5:30 PM EST | 71.6 | 0.85 | 91–194 |
| Nov 5, 4:35 PM EST | 71.6 | 0.85 | 91–194 |
| Nov 5, 3:40 PM EST | 71.6 | 0.85 | 91–194 |
| Nov 5, 2:45 PM EST | 71.6 | 0.85 | 91–194 |
| Nov 5, 1:50 PM EST | 71.6 | 0.85 | 91–194 |
| Nov 5, 12:55 PM EST | 70.3 | 0.84 | 91–194 |
| Nov 5, 12:00 PM EST | 70.3 | 0.84 | 91–194 |
| Nov 5, 11:05 AM EST | 70.3 | 0.84 | 91–194 |
| Nov 5, 10:10 AM EST | 70.3 | 0.84 | 91–194 |
| Nov 5, 9:15 AM EST | 70.3 | 0.84 | 91–194 |
| Nov 5, 8:20 AM EST | 70.3 | 0.84 | 91–194 |
| Nov 5, 7:25 AM EST | 69 | 0.83 | 91–194 |
| Nov 5, 6:30 AM EST | 69 | 0.83 | 91–194 |
| Nov 5, 5:35 AM EST | 69 | 0.83 | 91–194 |
| Nov 5, 4:40 AM EST | 69 | 0.83 | 91–194 |
| Nov 5, 3:45 AM EST | 69 | 0.83 | 91–194 |
| Nov 5, 2:50 AM EST | 69 | 0.83 | 91–194 |
| Nov 5, 1:55 AM EST | 67.7 | 0.82 | 91–194 |
| Nov 5, 1:00 AM EST | 67.7 | 0.82 | 91–194 |
| Nov 5, 12:05 AM EST | 67.7 | 0.82 | 91–194 |
| Nov 4, 11:10 PM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 10:15 PM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 9:20 PM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 8:25 PM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 7:30 PM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 6:35 PM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 5:40 PM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 4:45 PM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 3:50 PM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 2:55 PM EST | 69 | 0.83 | 84–196 |
| Nov 4, 2:00 PM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 1:05 PM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 12:10 PM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 11:15 AM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 10:20 AM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 9:25 AM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 8:30 AM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 7:35 AM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 6:40 AM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 5:45 AM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 4:50 AM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 3:55 AM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 3:00 AM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 2:05 AM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 1:10 AM EST | 67.7 | 0.82 | 84–196 |
| Nov 4, 12:15 AM EST | 67.7 | 0.82 | 84–196 |
| Nov 3, 11:20 PM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 10:25 PM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 9:30 PM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 8:35 PM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 7:40 PM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 6:45 PM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 5:50 PM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 4:55 PM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 4:00 PM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 3:05 PM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 2:10 PM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 1:15 PM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 12:20 PM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 11:25 AM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 10:30 AM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 9:35 AM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 8:40 AM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 7:45 AM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 6:50 AM EST | 66.4 | 0.81 | 91–197 |
| Nov 3, 5:55 AM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 5:00 AM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 4:05 AM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 3:10 AM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 2:15 AM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 1:20 AM EST | 67.7 | 0.82 | 91–197 |
| Nov 3, 12:25 AM EST | 67.7 | 0.82 | 91–197 |
| Nov 2, 11:30 PM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 10:35 PM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 9:40 PM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 8:45 PM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 7:50 PM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 6:55 PM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 6:00 PM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 5:05 PM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 4:10 PM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 3:15 PM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 2:20 PM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 1:25 PM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 12:30 PM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 11:35 AM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 10:40 AM EST | 66.4 | 0.81 | 88–197 |
| Nov 2, 9:45 AM EST | 66.4 | 0.81 | 88–197 |
| Nov 2, 8:50 AM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 7:55 AM EST | 66.4 | 0.81 | 88–197 |
| Nov 2, 7:00 AM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 6:05 AM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 5:10 AM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 4:15 AM EST | 66.4 | 0.81 | 88–197 |
| Nov 2, 3:20 AM EST | 66.4 | 0.81 | 88–197 |
| Nov 2, 2:25 AM EST | 66.4 | 0.81 | 88–197 |
| Nov 2, 1:30 AM EST | 67.7 | 0.82 | 88–197 |
| Nov 2, 12:35 AM EST | 67.7 | 0.82 | 88–197 |
| Nov 1, 11:40 PM EST | 67.7 | 0.82 | 83–203 |
| Nov 1, 10:45 PM EST | 67.7 | 0.82 | 83–203 |
| Nov 1, 9:50 PM EST | 67.7 | 0.82 | 83–203 |
| Nov 1, 8:55 PM EST | 67.7 | 0.82 | 83–203 |
| Nov 1, 8:00 PM EST | 67.7 | 0.82 | 83–203 |
| Nov 1, 7:05 PM EST | 67.7 | 0.82 | 83–203 |
| Nov 1, 6:10 PM EST | 67.7 | 0.82 | 83–203 |
| Nov 1, 5:15 PM EST | 67.7 | 0.82 | 83–203 |
| Nov 1, 4:20 PM EST | 67.7 | 0.82 | 83–203 |
| Nov 1, 3:25 PM EST | 67.7 | 0.82 | 83–203 |
| Nov 1, 2:30 PM EST | 67.7 | 0.82 | 83–203 |
| Nov 1, 1:35 PM EST | 67.7 | 0.82 | 83–203 |
| Nov 1, 12:40 PM EST | 67.7 | 0.82 | 83–203 |
| Nov 1, 11:45 AM EST | 67.7 | 0.82 | 83–203 |
| Nov 1, 10:50 AM EST | 67.7 | 0.82 | 83–203 |
| Nov 1, 9:55 AM EST | 66.4 | 0.81 | 83–203 |
| Nov 1, 9:00 AM EST | 66.4 | 0.81 | 83–203 |
| Nov 1, 8:05 AM EST | 66.4 | 0.81 | 83–203 |
| Nov 1, 7:10 AM EST | 66.4 | 0.81 | 83–203 |
| Nov 1, 6:15 AM EST | 66.4 | 0.81 | 83–203 |
| Nov 1, 5:20 AM EST | 66.4 | 0.81 | 83–203 |
| Nov 1, 4:25 AM EST | 66.4 | 0.81 | 83–203 |
| Nov 1, 3:30 AM EST | 67.7 | 0.82 | 83–203 |
| Nov 1, 2:35 AM EST | 66.4 | 0.81 | 83–203 |
| Nov 1, 1:40 AM EST | 67.7 | 0.82 | 83–203 |
| Nov 1, 1:45 AM EDT | 66.4 | 0.81 | 83–203 |
| Nov 1, 12:50 AM EDT | 67.7 | 0.82 | 83–203 |
| Oct 31, 11:55 PM EDT | 67.7 | 0.82 | 85–191 |
| Oct 31, 11:00 PM EDT | 66.4 | 0.81 | 85–191 |
| Oct 31, 10:05 PM EDT | 67.7 | 0.82 | 85–191 |
| Oct 31, 9:10 PM EDT | 67.7 | 0.82 | 85–191 |
| Oct 31, 8:15 PM EDT | 67.7 | 0.82 | 85–191 |
| Oct 31, 7:20 PM EDT | 67.7 | 0.82 | 85–191 |
| Oct 31, 6:25 PM EDT | 67.7 | 0.82 | 85–191 |
| Oct 31, 5:30 PM EDT | 66.4 | 0.81 | 85–191 |
| Oct 31, 4:35 PM EDT | 67.7 | 0.82 | 85–191 |
| Oct 31, 3:40 PM EDT | 67.7 | 0.82 | 85–191 |
| Oct 31, 2:45 PM EDT | 67.7 | 0.82 | 85–191 |
| Oct 31, 1:50 PM EDT | 67.7 | 0.82 | 85–191 |
| Oct 31, 12:55 PM EDT | 66.4 | 0.81 | 85–191 |
| Oct 31, 12:00 PM EDT | 66.4 | 0.81 | 85–191 |
| Oct 31, 11:05 AM EDT | 67.7 | 0.82 | 85–191 |
| Oct 31, 10:10 AM EDT | 66.4 | 0.81 | 85–191 |
| Oct 31, 9:15 AM EDT | 66.4 | 0.81 | 85–191 |
| Oct 31, 8:20 AM EDT | 66.4 | 0.81 | 85–191 |
| Oct 31, 7:25 AM EDT | 66.4 | 0.81 | 85–191 |
| Oct 31, 6:30 AM EDT | 66.4 | 0.81 | 85–191 |
| Oct 31, 5:35 AM EDT | 66.4 | 0.81 | 85–191 |
| Oct 31, 4:40 AM EDT | 66.4 | 0.81 | 85–191 |
| Oct 31, 3:45 AM EDT | 66.4 | 0.81 | 85–191 |
| Oct 31, 2:50 AM EDT | 66.4 | 0.81 | 85–191 |
| Oct 31, 1:55 AM EDT | 66.4 | 0.81 | 85–191 |
| Oct 31, 1:00 AM EDT | 67.7 | 0.82 | 85–191 |
| Oct 31, 12:05 AM EDT | 66.4 | 0.81 | 85–191 |
| Oct 30, 11:10 PM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 10:15 PM EDT | 66.4 | 0.81 | 93–198 |
| Oct 30, 9:20 PM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 8:25 PM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 7:30 PM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 6:35 PM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 5:40 PM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 4:45 PM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 3:50 PM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 2:55 PM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 2:00 PM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 1:05 PM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 12:10 PM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 11:15 AM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 10:20 AM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 9:25 AM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 8:30 AM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 7:35 AM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 6:40 AM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 5:45 AM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 4:50 AM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 3:55 AM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 3:00 AM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 2:05 AM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 1:10 AM EDT | 67.7 | 0.82 | 93–198 |
| Oct 30, 12:15 AM EDT | 67.7 | 0.82 | 93–198 |
| Oct 29, 11:20 PM EDT | 67.7 | 0.82 | 91–209 |
| Oct 29, 10:25 PM EDT | 67.7 | 0.82 | 91–209 |
| Oct 29, 9:30 PM EDT | 67.7 | 0.82 | 91–209 |
| Oct 29, 8:35 PM EDT | 67.7 | 0.82 | 91–209 |
| Oct 29, 8:20 PM EDT | 67.7 | 0.82 | 91–209 |
Map of USGS gauge 01582500 and the river around it
Where GUNPOWDER FALLS AT GLENCOE, MD sits, with 2 other gauges on the same river and our water's map point.
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.
Species the agency lists for : brown trout, rainbow trout, brook trout.
Normal for Nov 5: 91–194 ft³/s (middle half of 46 years of record). Now: 71.6 ft³/s, below normal.
Below normal for this date. 71.6 ft³/s is between the 10th and 25th percentiles of daily mean flow for Nov 5 at this gauge over 46 years of record (1978–2026): 10th 71, 25th 91, median 131, 75th 194, 90th 259 ft³/s.
Daily means on record for Nov 5: lowest 55.2 ft³/s, highest 496 ft³/s.
Classes as USGS labels them (hyswap: flow categories (WDFN_stats schema) (U.S. Geological Survey) ); percentiles from the USGS daily statistics (U.S. Geological Survey) (approved daily means; the reading is provisional and instantaneous).
Steady over 24 hours (+5.8% discharge). 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.
From our page for Gunpowder Falls, on the same river as this gauge; the agency list is for the water, not this exact reach. Source: The Gunpowder Falls Tailwater: Assessing One of Maryland’s Coldwater Trout Fisheries (Maryland Department of Natural Resources).
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
Flood categories: action stage, minor, moderate and major flooding (National Weather Service)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.
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
NWS observed 0.85 ft stage, 71 ft³/s at Nov 5, 7:20 PM EST (NWS gauge GCEM2; its stage datum can differ from the USGS gauge height).
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, 8:17 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.