St. Mary River at International Boundary
USGS 05020500 · Alabama · reports discharge (live), gauge height
Reading St. Mary River at International Boundary…
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USGS 05020500 · Alabama · 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, 6:10 PM MST · provisional USGS data
Below normal for Nov 5 Steady · 24 h Below NWS action stage
Discharge, last 7 days: 185 readings from Oct 29, 7:10 PM MDT to Nov 5, 6:10 PM MST; ranging 128 to 151 ft³/s; latest 138 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, 6:10 PM MST | 138 | 3.52 | 181–456 |
| Nov 5, 5:15 PM MST | 138 | 3.52 | 181–456 |
| Nov 5, 4:20 PM MST | 138 | 3.52 | 181–456 |
| Nov 5, 3:25 PM MST | 138 | 3.52 | 181–456 |
| Nov 5, 2:30 PM MST | 138 | 3.52 | 181–456 |
| Nov 5, 1:35 PM MST | 135 | 3.51 | 181–456 |
| Nov 5, 12:40 PM MST | 133 | 3.5 | 181–456 |
| Nov 5, 11:45 AM MST | 133 | 3.5 | 181–456 |
| Nov 5, 10:50 AM MST | 133 | 3.5 | 181–456 |
| Nov 5, 9:55 AM MST | 133 | 3.5 | 181–456 |
| Nov 5, 9:00 AM MST | 133 | 3.5 | 181–456 |
| Nov 5, 8:05 AM MST | 133 | 3.5 | 181–456 |
| Nov 5, 7:10 AM MST | 133 | 3.5 | 181–456 |
| Nov 5, 6:15 AM MST | 133 | 3.5 | 181–456 |
| Nov 5, 5:20 AM MST | 135 | 3.51 | 181–456 |
| Nov 5, 4:25 AM MST | 135 | 3.51 | 181–456 |
| Nov 5, 3:30 AM MST | 135 | 3.51 | 181–456 |
| Nov 5, 2:35 AM MST | 135 | 3.51 | 181–456 |
| Nov 5, 1:40 AM MST | 135 | 3.51 | 181–456 |
| Nov 5, 12:45 AM MST | 135 | 3.51 | 181–456 |
| Nov 4, 11:50 PM MST | 138 | 3.52 | 175–454 |
| Nov 4, 10:55 PM MST | 135 | 3.51 | 175–454 |
| Nov 4, 10:00 PM MST | 135 | 3.51 | 175–454 |
| Nov 4, 9:05 PM MST | 135 | 3.51 | 175–454 |
| Nov 4, 8:10 PM MST | 135 | 3.51 | 175–454 |
| Nov 4, 7:15 PM MST | 135 | 3.51 | 175–454 |
| Nov 4, 6:20 PM MST | 135 | 3.51 | 175–454 |
| Nov 4, 5:25 PM MST | 138 | 3.52 | 175–454 |
| Nov 4, 4:30 PM MST | 135 | 3.51 | 175–454 |
| Nov 4, 3:35 PM MST | 133 | 3.5 | 175–454 |
| Nov 4, 2:40 PM MST | 130 | 3.49 | 175–454 |
| Nov 4, 1:45 PM MST | 128 | 3.48 | 175–454 |
| Nov 4, 12:50 PM MST | 130 | 3.49 | 175–454 |
| Nov 4, 11:55 AM MST | 130 | 3.49 | 175–454 |
| Nov 4, 11:00 AM MST | 130 | 3.49 | 175–454 |
| Nov 4, 10:05 AM MST | 130 | 3.49 | 175–454 |
| Nov 4, 9:10 AM MST | 135 | 3.51 | 175–454 |
| Nov 4, 8:15 AM MST | 135 | 3.51 | 175–454 |
| Nov 4, 7:20 AM MST | 138 | 3.52 | 175–454 |
| Nov 4, 6:25 AM MST | 138 | 3.52 | 175–454 |
| Nov 4, 5:30 AM MST | 138 | 3.52 | 175–454 |
| Nov 4, 4:35 AM MST | 138 | 3.52 | 175–454 |
| Nov 4, 3:40 AM MST | 138 | 3.52 | 175–454 |
| Nov 4, 2:45 AM MST | 138 | 3.52 | 175–454 |
| Nov 4, 1:50 AM MST | 140 | 3.53 | 175–454 |
| Nov 4, 12:55 AM MST | 140 | 3.53 | 175–454 |
| Nov 4, 12:00 AM MST | 140 | 3.53 | 175–454 |
| Nov 3, 11:05 PM MST | 143 | 3.54 | 180–438 |
| Nov 3, 10:10 PM MST | 143 | 3.54 | 180–438 |
| Nov 3, 9:15 PM MST | 143 | 3.54 | 180–438 |
| Nov 3, 8:20 PM MST | 140 | 3.53 | 180–438 |
| Nov 3, 7:25 PM MST | 140 | 3.53 | 180–438 |
| Nov 3, 6:30 PM MST | 138 | 3.52 | 180–438 |
| Nov 3, 5:35 PM MST | 138 | 3.52 | 180–438 |
| Nov 3, 4:40 PM MST | 138 | 3.52 | 180–438 |
| Nov 3, 3:45 PM MST | 140 | 3.53 | 180–438 |
| Nov 3, 2:50 PM MST | 135 | 3.51 | 180–438 |
| Nov 3, 1:55 PM MST | 133 | 3.5 | 180–438 |
| Nov 3, 1:00 PM MST | 133 | 3.5 | 180–438 |
| Nov 3, 12:05 PM MST | 135 | 3.51 | 180–438 |
| Nov 3, 11:10 AM MST | 135 | 3.51 | 180–438 |
| Nov 3, 10:15 AM MST | 135 | 3.51 | 180–438 |
| Nov 3, 9:20 AM MST | 138 | 3.52 | 180–438 |
| Nov 3, 8:25 AM MST | 138 | 3.52 | 180–438 |
| Nov 3, 7:30 AM MST | 140 | 3.53 | 180–438 |
| Nov 3, 6:35 AM MST | 140 | 3.53 | 180–438 |
| Nov 3, 5:40 AM MST | 140 | 3.53 | 180–438 |
| Nov 3, 4:45 AM MST | 143 | 3.54 | 180–438 |
| Nov 3, 3:50 AM MST | 143 | 3.54 | 180–438 |
| Nov 3, 2:55 AM MST | 143 | 3.54 | 180–438 |
| Nov 3, 2:00 AM MST | 143 | 3.54 | 180–438 |
| Nov 3, 1:05 AM MST | 145 | 3.55 | 180–438 |
| Nov 3, 12:10 AM MST | 145 | 3.55 | 180–438 |
| Nov 2, 11:15 PM MST | 148 | 3.56 | 181–438 |
| Nov 2, 10:20 PM MST | 151 | 3.57 | 181–438 |
| Nov 2, 9:25 PM MST | 148 | 3.56 | 181–438 |
| Nov 2, 8:30 PM MST | 145 | 3.55 | 181–438 |
| Nov 2, 7:35 PM MST | 143 | 3.54 | 181–438 |
| Nov 2, 6:40 PM MST | 138 | 3.52 | 181–438 |
| Nov 2, 5:45 PM MST | 135 | 3.51 | 181–438 |
| Nov 2, 4:50 PM MST | 135 | 3.51 | 181–438 |
| Nov 2, 3:55 PM MST | 138 | 3.52 | 181–438 |
| Nov 2, 3:00 PM MST | 138 | 3.52 | 181–438 |
| Nov 2, 2:05 PM MST | 135 | 3.51 | 181–438 |
| Nov 2, 1:10 PM MST | 135 | 3.51 | 181–438 |
| Nov 2, 12:15 PM MST | 138 | 3.52 | 181–438 |
| Nov 2, 11:20 AM MST | 140 | 3.53 | 181–438 |
| Nov 2, 10:25 AM MST | 143 | 3.54 | 181–438 |
| Nov 2, 9:30 AM MST | 143 | 3.54 | 181–438 |
| Nov 2, 8:35 AM MST | 143 | 3.54 | 181–438 |
| Nov 2, 7:40 AM MST | 145 | 3.55 | 181–438 |
| Nov 2, 6:45 AM MST | 145 | 3.55 | 181–438 |
| Nov 2, 5:50 AM MST | 145 | 3.55 | 181–438 |
| Nov 2, 4:55 AM MST | 145 | 3.55 | 181–438 |
| Nov 2, 4:00 AM MST | 145 | 3.55 | 181–438 |
| Nov 2, 3:05 AM MST | 145 | 3.55 | 181–438 |
| Nov 2, 2:10 AM MST | 145 | 3.55 | 181–438 |
| Nov 2, 1:15 AM MST | 143 | 3.54 | 181–438 |
| Nov 2, 12:20 AM MST | 145 | 3.55 | 181–438 |
| Nov 1, 11:25 PM MST | 145 | 3.55 | 181–444 |
| Nov 1, 10:30 PM MST | 145 | 3.55 | 181–444 |
| Nov 1, 9:35 PM MST | 145 | 3.55 | 181–444 |
| Nov 1, 8:40 PM MST | 145 | 3.55 | 181–444 |
| Nov 1, 7:45 PM MST | 145 | 3.55 | 181–444 |
| Nov 1, 6:50 PM MST | 145 | 3.55 | 181–444 |
| Nov 1, 5:55 PM MST | 143 | 3.54 | 181–444 |
| Nov 1, 5:00 PM MST | 143 | 3.54 | 181–444 |
| Nov 1, 4:05 PM MST | 143 | 3.54 | 181–444 |
| Nov 1, 3:10 PM MST | 143 | 3.54 | 181–444 |
| Nov 1, 2:15 PM MST | 140 | 3.53 | 181–444 |
| Nov 1, 1:20 PM MST | 140 | 3.53 | 181–444 |
| Nov 1, 12:25 PM MST | 140 | 3.53 | 181–444 |
| Nov 1, 11:30 AM MST | 140 | 3.53 | 181–444 |
| Nov 1, 10:35 AM MST | 138 | 3.52 | 181–444 |
| Nov 1, 9:40 AM MST | 138 | 3.52 | 181–444 |
| Nov 1, 8:45 AM MST | 138 | 3.52 | 181–444 |
| Nov 1, 7:50 AM MST | 138 | 3.52 | 181–444 |
| Nov 1, 6:55 AM MST | 140 | 3.53 | 181–444 |
| Nov 1, 6:00 AM MST | 140 | 3.53 | 181–444 |
| Nov 1, 5:05 AM MST | 140 | 3.53 | 181–444 |
| Nov 1, 4:10 AM MST | 140 | 3.53 | 181–444 |
| Nov 1, 3:15 AM MST | 140 | 3.53 | 181–444 |
| Nov 1, 2:20 AM MST | 140 | 3.53 | 181–444 |
| Nov 1, 1:25 AM MST | 137 | 3.52 | 181–444 |
| Nov 1, 1:30 AM MDT | 137 | 3.52 | 181–444 |
| Nov 1, 12:35 AM MDT | 137 | 3.52 | 181–444 |
| Oct 31, 11:40 PM MDT | 137 | 3.52 | 189–453 |
| Oct 31, 10:45 PM MDT | 137 | 3.52 | 189–453 |
| Oct 31, 9:50 PM MDT | 137 | 3.52 | 189–453 |
| Oct 31, 8:55 PM MDT | 135 | 3.51 | 189–453 |
| Oct 31, 8:00 PM MDT | 135 | 3.51 | 189–453 |
| Oct 31, 7:05 PM MDT | 135 | 3.51 | 189–453 |
| Oct 31, 6:10 PM MDT | 135 | 3.51 | 189–453 |
| Oct 31, 5:15 PM MDT | 135 | 3.51 | 189–453 |
| Oct 31, 4:20 PM MDT | 137 | 3.52 | 189–453 |
| Oct 31, 3:25 PM MDT | 137 | 3.52 | 189–453 |
| Oct 31, 2:30 PM MDT | 140 | 3.53 | 189–453 |
| Oct 31, 1:35 PM MDT | 140 | 3.53 | 189–453 |
| Oct 31, 12:40 PM MDT | 140 | 3.53 | 189–453 |
| Oct 31, 11:45 AM MDT | 140 | 3.53 | 189–453 |
| Oct 31, 10:50 AM MDT | 140 | 3.53 | 189–453 |
| Oct 31, 9:55 AM MDT | 140 | 3.53 | 189–453 |
| Oct 31, 9:00 AM MDT | 140 | 3.53 | 189–453 |
| Oct 31, 8:05 AM MDT | 140 | 3.53 | 189–453 |
| Oct 31, 7:10 AM MDT | 140 | 3.53 | 189–453 |
| Oct 31, 6:15 AM MDT | 143 | 3.54 | 189–453 |
| Oct 31, 5:20 AM MDT | 143 | 3.54 | 189–453 |
| Oct 31, 4:25 AM MDT | 143 | 3.54 | 189–453 |
| Oct 31, 3:30 AM MDT | 140 | 3.53 | 189–453 |
| Oct 31, 2:35 AM MDT | 143 | 3.54 | 189–453 |
| Oct 31, 1:40 AM MDT | 143 | 3.54 | 189–453 |
| Oct 31, 12:45 AM MDT | 140 | 3.53 | 189–453 |
| Oct 30, 11:50 PM MDT | 140 | 3.53 | 195–466 |
| Oct 30, 10:55 PM MDT | 137 | 3.52 | 195–466 |
| Oct 30, 10:00 PM MDT | 140 | 3.53 | 195–466 |
| Oct 30, 9:05 PM MDT | 140 | 3.53 | 195–466 |
| Oct 30, 8:10 PM MDT | 140 | 3.53 | 195–466 |
| Oct 30, 7:15 PM MDT | 140 | 3.53 | 195–466 |
| Oct 30, 6:20 PM MDT | 140 | 3.53 | 195–466 |
| Oct 30, 5:25 PM MDT | 140 | 3.53 | 195–466 |
| Oct 30, 4:30 PM MDT | 140 | 3.53 | 195–466 |
| Oct 30, 3:35 PM MDT | 142 | 3.54 | 195–466 |
| Oct 30, 2:40 PM MDT | 142 | 3.54 | 195–466 |
| Oct 30, 1:45 PM MDT | 142 | 3.54 | 195–466 |
| Oct 30, 12:50 PM MDT | 145 | 3.55 | 195–466 |
| Oct 30, 11:55 AM MDT | 142 | 3.54 | 195–466 |
| Oct 30, 11:00 AM MDT | 145 | 3.55 | 195–466 |
| Oct 30, 10:05 AM MDT | 145 | 3.55 | 195–466 |
| Oct 30, 9:10 AM MDT | 145 | 3.55 | 195–466 |
| Oct 30, 8:15 AM MDT | 145 | 3.55 | 195–466 |
| Oct 30, 7:20 AM MDT | 145 | 3.55 | 195–466 |
| Oct 30, 6:25 AM MDT | 145 | 3.55 | 195–466 |
| Oct 30, 5:30 AM MDT | 145 | 3.55 | 195–466 |
| Oct 30, 4:35 AM MDT | 142 | 3.54 | 195–466 |
| Oct 30, 3:40 AM MDT | 145 | 3.55 | 195–466 |
| Oct 30, 2:45 AM MDT | 145 | 3.55 | 195–466 |
| Oct 30, 1:50 AM MDT | 142 | 3.54 | 195–466 |
| Oct 30, 12:55 AM MDT | 142 | 3.54 | 195–466 |
| Oct 30, 12:00 AM MDT | 142 | 3.54 | 195–466 |
| Oct 29, 11:05 PM MDT | 142 | 3.54 | 189–457 |
| Oct 29, 10:10 PM MDT | 142 | 3.54 | 189–457 |
| Oct 29, 9:15 PM MDT | 142 | 3.54 | 189–457 |
| Oct 29, 8:20 PM MDT | 145 | 3.55 | 189–457 |
| Oct 29, 7:25 PM MDT | 145 | 3.55 | 189–457 |
| Oct 29, 7:10 PM MDT | 145 | 3.55 | 189–457 |
Map of USGS gauge 05020500 and the river around it
Where St. Mary River at International Boundary sits, with 1 other gauge on the same river.
No current water-temperature reading at this gauge, so no temperature guidance is given. Take a stream thermometer. Alabama Department of Conservation and Natural Resources publishes no water-temperature line for trout anglers that we found. The lines below are the National Park Service's, federal guidance, not a Alabama rule: 68°F.
Species list not on file for this gauge. Check the Alabama Department of Conservation and Natural Resources: Alabama public water fish stockings · .
Normal for Nov 5: 181–456 ft³/s (middle half of 124 years of record). Now: 138 ft³/s, below normal.
Below normal for this date. 138 ft³/s is between the 10th and 25th percentiles of daily mean flow for Nov 5 at this gauge over 124 years of record (1903–2026): 10th 128, 25th 181, median 316, 75th 456, 90th 680 ft³/s.
Daily means on record for Nov 5: lowest 28 ft³/s, highest 1,580 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 (+2.2% 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.
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 3.52 ft stage, 134 ft³/s at Nov 5, 6:10 PM MST (NWS gauge SMBM8; its stage datum can differ from the USGS gauge height).
Forecasts are issued as needed during times of high water, but are not routinely available.
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 7:03 PM MST; 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.