Atchafalaya River at Simmesport, LA
USGS 07381490 · Louisiana · reports discharge (live), gauge height
Reading Atchafalaya River at Simmesport, LA…
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USGS 07381490 · Louisiana · 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, 8:30 PM CST · provisional USGS data
Normal for Nov 5 Steady · 24 h Below NWS action stage
Discharge, last 7 days: 160 readings from Oct 29, 9:30 PM CDT to Nov 5, 8:30 PM CST; ranging 97,700 to 119,000 ft³/s; latest 100,000 ft³/s; 3 gaps in the record; 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, 8:30 PM CST | 100,000 | 6.39 | 92,800–140,000 |
| Nov 5, 7:30 PM CST | 99,600 | 6.35 | 92,800–140,000 |
| Nov 5, 6:30 PM CST | 99,100 | 6.31 | 92,800–140,000 |
| Nov 5, 5:30 PM CST | 98,600 | 6.27 | 92,800–140,000 |
| Nov 5, 4:30 PM CST | 98,300 | 6.24 | 92,800–140,000 |
| Nov 5, 3:30 PM CST | 98,300 | 6.24 | 92,800–140,000 |
| Nov 5, 2:30 PM CST | 98,100 | 6.23 | 92,800–140,000 |
| Nov 5, 1:30 PM CST | 98,300 | 6.24 | 92,800–140,000 |
| Nov 5, 12:30 PM CST | 97,800 | 6.2 | 92,800–140,000 |
| Nov 5, 11:30 AM CST | 97,700 | 6.19 | 92,800–140,000 |
| Nov 5, 10:30 AM CST | 98,100 | 6.23 | 92,800–140,000 |
| Nov 5, 9:30 AM CST | 98,100 | 6.23 | 92,800–140,000 |
| Nov 5, 8:30 AM CST | 98,600 | 6.27 | 92,800–140,000 |
| Nov 5, 7:30 AM CST | 98,500 | 6.26 | 92,800–140,000 |
| Nov 5, 6:30 AM CST | 98,800 | 6.28 | 92,800–140,000 |
| Nov 5, 5:30 AM CST | 98,800 | 6.28 | 92,800–140,000 |
| Nov 5, 4:30 AM CST | 98,900 | 6.29 | 92,800–140,000 |
| Nov 5, 3:30 AM CST | 99,100 | 6.31 | 92,800–140,000 |
| Nov 5, 2:30 AM CST | 99,200 | 6.32 | 92,800–140,000 |
| Nov 5, 1:30 AM CST | 99,600 | 6.35 | 92,800–140,000 |
| Nov 5, 12:30 AM CST | 99,700 | 6.36 | 92,800–140,000 |
| Nov 4, 11:30 PM CST | 101,000 | 6.47 | 98,300–136,000 |
| Nov 4, 10:30 PM CST | 100,000 | 6.42 | 98,300–136,000 |
| Nov 4, 9:30 PM CST | 101,000 | 6.44 | 98,300–136,000 |
| Nov 4, 8:30 PM CST | 101,000 | 6.45 | 98,300–136,000 |
| Nov 4, 7:30 PM CST | 101,000 | 6.46 | 98,300–136,000 |
| Nov 4, 6:30 PM CST | 101,000 | 6.49 | 98,300–136,000 |
| Nov 4, 5:30 PM CST | 102,000 | 6.51 | 98,300–136,000 |
| Nov 4, 4:30 PM CST | 102,000 | 6.53 | 98,300–136,000 |
| Nov 4, 3:30 PM CST | 102,000 | 6.55 | 98,300–136,000 |
| Nov 4, 2:30 PM CST | 103,000 | 6.61 | 98,300–136,000 |
| Nov 4, 1:30 PM CST | 103,000 | 6.62 | 98,300–136,000 |
| Nov 4, 12:30 PM CST | 103,000 | 6.64 | 98,300–136,000 |
| Nov 4, 11:30 AM CST | 104,000 | 6.7 | 98,300–136,000 |
| Nov 4, 10:30 AM CST | 104,000 | 6.7 | 98,300–136,000 |
| Nov 4, 9:30 AM CST | 104,000 | 6.71 | 98,300–136,000 |
| Nov 4, 8:30 AM CST | 104,000 | 6.73 | 98,300–136,000 |
| Nov 4, 7:30 AM CST | 105,000 | 6.76 | 98,300–136,000 |
| Nov 4, 6:30 AM CST | 105,000 | 6.81 | 98,300–136,000 |
| Nov 4, 5:30 AM CST | 105,000 | 6.82 | 98,300–136,000 |
| Nov 4, 4:30 AM CST | 105,000 | 6.82 | 98,300–136,000 |
| Nov 4, 3:30 AM CST | 106,000 | 6.85 | 98,300–136,000 |
| Nov 4, 2:30 AM CST | 105,000 | 6.83 | 98,300–136,000 |
| Nov 3, 10:00 PM CST | 106,000 | 6.9 | 107,000–145,000 |
| Nov 3, 9:00 PM CST | 107,000 | 6.96 | 107,000–145,000 |
| Nov 3, 8:00 PM CST | 108,000 | 7.01 | 107,000–145,000 |
| Nov 3, 7:00 PM CST | 108,000 | 7.05 | 107,000–145,000 |
| Nov 3, 3:00 PM CST | 108,000 | 7.03 | 107,000–145,000 |
| Nov 3, 2:00 PM CST | 107,000 | 7 | 107,000–145,000 |
| Nov 3, 1:00 PM CST | 108,000 | 7.06 | 107,000–145,000 |
| Nov 3, 12:00 PM CST | 108,000 | 7.07 | 107,000–145,000 |
| Nov 3, 11:00 AM CST | 109,000 | 7.11 | 107,000–145,000 |
| Nov 3, 10:00 AM CST | 108,000 | 7.07 | 107,000–145,000 |
| Nov 3, 9:00 AM CST | 108,000 | 7.08 | 107,000–145,000 |
| Nov 3, 8:00 AM CST | 108,000 | 7.08 | 107,000–145,000 |
| Nov 3, 7:00 AM CST | 108,000 | 7.06 | 107,000–145,000 |
| Nov 3, 6:00 AM CST | 108,000 | 7.04 | 107,000–145,000 |
| Nov 3, 5:00 AM CST | 107,000 | 7 | 107,000–145,000 |
| Nov 3, 4:00 AM CST | 107,000 | 6.97 | 107,000–145,000 |
| Nov 3, 3:00 AM CST | 107,000 | 6.94 | 107,000–145,000 |
| Nov 3, 2:00 AM CST | 107,000 | 6.93 | 107,000–145,000 |
| Nov 3, 1:00 AM CST | 107,000 | 6.93 | 107,000–145,000 |
| Nov 3, 12:00 AM CST | 107,000 | 6.93 | 107,000–145,000 |
| Nov 2, 11:00 PM CST | 106,000 | 6.92 | 104,000–153,000 |
| Nov 2, 10:00 PM CST | 107,000 | 6.94 | 104,000–153,000 |
| Nov 2, 9:00 PM CST | 107,000 | 6.95 | 104,000–153,000 |
| Nov 2, 8:00 PM CST | 107,000 | 6.95 | 104,000–153,000 |
| Nov 2, 7:00 PM CST | 107,000 | 6.98 | 104,000–153,000 |
| Nov 2, 6:00 PM CST | 107,000 | 6.97 | 104,000–153,000 |
| Nov 2, 5:00 PM CST | 107,000 | 6.96 | 104,000–153,000 |
| Nov 2, 4:00 PM CST | 106,000 | 6.89 | 104,000–153,000 |
| Nov 2, 3:00 PM CST | 107,000 | 6.96 | 104,000–153,000 |
| Nov 2, 2:00 PM CST | 106,000 | 6.9 | 104,000–153,000 |
| Nov 2, 1:00 PM CST | 106,000 | 6.9 | 104,000–153,000 |
| Nov 2, 12:00 PM CST | 106,000 | 6.85 | 104,000–153,000 |
| Nov 2, 11:00 AM CST | 106,000 | 6.9 | 104,000–153,000 |
| Nov 2, 10:00 AM CST | 106,000 | 6.92 | 104,000–153,000 |
| Nov 2, 9:00 AM CST | 106,000 | 6.86 | 104,000–153,000 |
| Nov 2, 8:00 AM CST | 106,000 | 6.87 | 104,000–153,000 |
| Nov 2, 7:00 AM CST | 106,000 | 6.9 | 104,000–153,000 |
| Nov 2, 6:00 AM CST | 106,000 | 6.89 | 104,000–153,000 |
| Nov 2, 5:00 AM CST | 106,000 | 6.9 | 104,000–153,000 |
| Nov 2, 4:00 AM CST | 106,000 | 6.89 | 104,000–153,000 |
| Nov 2, 3:00 AM CST | 106,000 | 6.89 | 104,000–153,000 |
| Nov 2, 2:00 AM CST | 106,000 | 6.92 | 104,000–153,000 |
| Nov 2, 1:00 AM CST | 106,000 | 6.92 | 104,000–153,000 |
| Nov 2, 12:00 AM CST | 107,000 | 6.93 | 104,000–153,000 |
| Nov 1, 11:00 PM CST | 107,000 | 6.97 | 105,000–164,000 |
| Nov 1, 10:00 PM CST | 107,000 | 6.99 | 105,000–164,000 |
| Nov 1, 9:00 PM CST | 108,000 | 7.05 | 105,000–164,000 |
| Nov 1, 5:00 PM CST | 110,000 | 7.2 | 105,000–164,000 |
| Nov 1, 4:00 PM CST | 110,000 | 7.24 | 105,000–164,000 |
| Nov 1, 3:00 PM CST | 111,000 | 7.27 | 105,000–164,000 |
| Nov 1, 2:00 PM CST | 111,000 | 7.29 | 105,000–164,000 |
| Nov 1, 1:00 PM CST | 111,000 | 7.31 | 105,000–164,000 |
| Nov 1, 12:00 PM CST | 111,000 | 7.32 | 105,000–164,000 |
| Nov 1, 11:00 AM CST | 112,000 | 7.37 | 105,000–164,000 |
| Nov 1, 10:00 AM CST | 112,000 | 7.36 | 105,000–164,000 |
| Nov 1, 9:00 AM CST | 112,000 | 7.34 | 105,000–164,000 |
| Nov 1, 8:00 AM CST | 112,000 | 7.35 | 105,000–164,000 |
| Nov 1, 7:00 AM CST | 111,000 | 7.33 | 105,000–164,000 |
| Nov 1, 6:00 AM CST | 112,000 | 7.34 | 105,000–164,000 |
| Nov 1, 5:00 AM CST | 111,000 | 7.31 | 105,000–164,000 |
| Nov 1, 4:00 AM CST | 111,000 | 7.28 | 105,000–164,000 |
| Nov 1, 3:00 AM CST | 110,000 | 7.25 | 105,000–164,000 |
| Nov 1, 2:00 AM CST | 110,000 | 7.21 | 105,000–164,000 |
| Nov 1, 1:00 AM CST | 110,000 | 7.19 | 105,000–164,000 |
| Nov 1, 1:00 AM CDT | 110,000 | 7.19 | 105,000–164,000 |
| Nov 1, 12:00 AM CDT | 110,000 | 7.2 | 105,000–164,000 |
| Oct 31, 11:00 PM CDT | 110,000 | 7.2 | 88,800–175,000 |
| Oct 31, 10:00 PM CDT | 110,000 | 7.24 | 88,800–175,000 |
| Oct 31, 9:00 PM CDT | 111,000 | 7.28 | 88,800–175,000 |
| Oct 31, 8:00 PM CDT | 111,000 | 7.28 | 88,800–175,000 |
| Oct 31, 7:00 PM CDT | 111,000 | 7.29 | 88,800–175,000 |
| Oct 31, 6:00 PM CDT | 111,000 | 7.32 | 88,800–175,000 |
| Oct 31, 5:00 PM CDT | 111,000 | 7.33 | 88,800–175,000 |
| Oct 31, 4:00 PM CDT | 111,000 | 7.32 | 88,800–175,000 |
| Oct 31, 3:00 PM CDT | 112,000 | 7.37 | 88,800–175,000 |
| Oct 31, 2:00 PM CDT | 111,000 | 7.33 | 88,800–175,000 |
| Oct 31, 1:00 PM CDT | 112,000 | 7.41 | 88,800–175,000 |
| Oct 31, 12:00 PM CDT | 111,000 | 7.33 | 88,800–175,000 |
| Oct 31, 11:00 AM CDT | 110,000 | 7.24 | 88,800–175,000 |
| Oct 31, 10:00 AM CDT | 111,000 | 7.33 | 88,800–175,000 |
| Oct 31, 9:00 AM CDT | 111,000 | 7.32 | 88,800–175,000 |
| Oct 31, 8:00 AM CDT | 111,000 | 7.3 | 88,800–175,000 |
| Oct 31, 7:00 AM CDT | 111,000 | 7.28 | 88,800–175,000 |
| Oct 31, 6:00 AM CDT | 111,000 | 7.27 | 88,800–175,000 |
| Oct 31, 5:00 AM CDT | 111,000 | 7.26 | 88,800–175,000 |
| Oct 31, 4:00 AM CDT | 111,000 | 7.26 | 88,800–175,000 |
| Oct 31, 3:00 AM CDT | 110,000 | 7.25 | 88,800–175,000 |
| Oct 31, 2:00 AM CDT | 110,000 | 7.25 | 88,800–175,000 |
| Oct 31, 1:00 AM CDT | 110,000 | 7.24 | 88,800–175,000 |
| Oct 31, 12:00 AM CDT | 111,000 | 7.28 | 88,800–175,000 |
| Oct 30, 11:00 PM CDT | 111,000 | 7.3 | 85,300–194,000 |
| Oct 30, 10:00 PM CDT | 112,000 | 7.36 | 85,300–194,000 |
| Oct 30, 9:00 PM CDT | 112,000 | 7.41 | 85,300–194,000 |
| Oct 30, 8:00 PM CDT | 112,000 | 7.42 | 85,300–194,000 |
| Oct 30, 7:00 PM CDT | 114,000 | 7.53 | 85,300–194,000 |
| Oct 30, 6:00 PM CDT | 115,000 | 7.6 | 85,300–194,000 |
| Oct 30, 5:00 PM CDT | 115,000 | 7.67 | 85,300–194,000 |
| Oct 30, 4:00 PM CDT | 116,000 | 7.74 | 85,300–194,000 |
| Oct 30, 3:00 PM CDT | 117,000 | 7.8 | 85,300–194,000 |
| Oct 30, 2:00 PM CDT | 117,000 | 7.82 | 85,300–194,000 |
| Oct 30, 1:00 PM CDT | 118,000 | 7.88 | 85,300–194,000 |
| Oct 30, 12:00 PM CDT | 119,000 | 7.95 | 85,300–194,000 |
| Oct 30, 11:00 AM CDT | 119,000 | 7.93 | 85,300–194,000 |
| Oct 30, 10:00 AM CDT | 119,000 | 7.96 | 85,300–194,000 |
| Oct 30, 9:00 AM CDT | 118,000 | 7.92 | 85,300–194,000 |
| Oct 30, 8:00 AM CDT | 118,000 | 7.92 | 85,300–194,000 |
| Oct 30, 7:00 AM CDT | 119,000 | 7.96 | 85,300–194,000 |
| Oct 30, 6:00 AM CDT | 119,000 | 7.93 | 85,300–194,000 |
| Oct 30, 5:00 AM CDT | 118,000 | 7.9 | 85,300–194,000 |
| Oct 30, 4:00 AM CDT | 118,000 | 7.87 | 85,300–194,000 |
| Oct 30, 3:00 AM CDT | 117,000 | 7.84 | 85,300–194,000 |
| Oct 30, 2:00 AM CDT | 117,000 | 7.8 | 85,300–194,000 |
| Oct 30, 1:00 AM CDT | 116,000 | 7.75 | 85,300–194,000 |
| Oct 30, 12:00 AM CDT | 116,000 | 7.73 | 85,300–194,000 |
| Oct 29, 11:00 PM CDT | 116,000 | 7.72 | 90,100–206,000 |
| Oct 29, 10:00 PM CDT | 116,000 | 7.72 | 90,100–206,000 |
| Oct 29, 9:30 PM CDT | 116,000 | 7.73 | 90,100–206,000 |
Map of USGS gauge 07381490 and the river around it
Where Atchafalaya River at Simmesport, LA sits.
No current water-temperature reading at this gauge, so no temperature guidance is given. Take a stream thermometer. We found no Louisiana agency water-temperature line for trout anglers. The lines below are the National Park Service's, federal guidance, not a Louisiana rule: 68°F.
Species list not on file for this gauge. Check the Louisiana Department of Wildlife and Fisheries: Louisiana fishing regulations (official eRegulations edition).
Normal for Nov 5: 92,800–140,000 ft³/s (middle half of 11 years of record). Now: 100,000 ft³/s, normal.
Normal for this date. 100,000 ft³/s is between the 25th and 75th percentiles of daily mean flow for Nov 5 at this gauge over 11 years of record (2011–2021): 10th 68,900, 25th 92,800, median 111,000, 75th 140,000, 90th 280,000 ft³/s.
Daily means on record for Nov 5: lowest 63,700 ft³/s, highest 280,000 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 (−1% 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 6.39 ft stage, 99,900 ft³/s at Nov 5, 8:30 PM CST (NWS gauge SMML1; its stage datum can differ from the USGS gauge height).
NWS river forecast forecast issued Nov 5, 9:19 AM CST. Highest point: 7.7 ft on Nov 19, 6:00 AM CST (Below NWS action stage).
| Day | Stage | Flow |
|---|---|---|
| Thu, Nov 5 | 6.2 ft | – |
| Fri, Nov 6 | 6 ft | – |
| Sat, Nov 7 | 6.1 ft | – |
| Sun, Nov 8 | 6.1 ft | – |
| Mon, Nov 9 | 6.3 ft | – |
| Tue, Nov 10 | 6.4 ft | – |
| Wed, Nov 11 | 6.6 ft | – |
| Thu, Nov 12 | 6.7 ft | – |
| Fri, Nov 13 | 6.9 ft | – |
| Sat, Nov 14 | 7.1 ft | – |
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 9:21 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.