SNAKE RIVER NR IRWIN ID
USGS 13032500 · Idaho · reports discharge (live), gauge height
Reading SNAKE RIVER NR IRWIN ID…
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USGS 13032500 · Idaho · 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 MST · provisional USGS data
Below normal for Nov 5 Steady · 24 h Below NWS action stage
Discharge, last 7 days: 169 readings from Oct 29, 9:30 PM MDT to Nov 5, 8:30 PM MST; ranging 874 to 1,490 ft³/s; latest 925 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, 8:30 PM MST | 925 | 4.45 | 1,060–2,570 |
| Nov 5, 7:30 PM MST | 925 | 4.45 | 1,060–2,570 |
| Nov 5, 6:30 PM MST | 938 | 4.46 | 1,060–2,570 |
| Nov 5, 5:30 PM MST | 938 | 4.46 | 1,060–2,570 |
| Nov 5, 4:30 PM MST | 938 | 4.46 | 1,060–2,570 |
| Nov 5, 3:30 PM MST | 925 | 4.45 | 1,060–2,570 |
| Nov 5, 2:30 PM MST | 938 | 4.46 | 1,060–2,570 |
| Nov 5, 1:30 PM MST | 925 | 4.45 | 1,060–2,570 |
| Nov 5, 12:30 PM MST | 938 | 4.46 | 1,060–2,570 |
| Nov 5, 11:30 AM MST | 938 | 4.46 | 1,060–2,570 |
| Nov 5, 10:30 AM MST | 938 | 4.46 | 1,060–2,570 |
| Nov 5, 9:30 AM MST | 912 | 4.44 | 1,060–2,570 |
| Nov 5, 8:30 AM MST | 912 | 4.44 | 1,060–2,570 |
| Nov 5, 7:30 AM MST | 951 | 4.47 | 1,060–2,570 |
| Nov 5, 6:30 AM MST | 925 | 4.45 | 1,060–2,570 |
| Nov 5, 5:30 AM MST | 925 | 4.45 | 1,060–2,570 |
| Nov 5, 4:30 AM MST | 925 | 4.45 | 1,060–2,570 |
| Nov 5, 3:30 AM MST | 925 | 4.45 | 1,060–2,570 |
| Nov 5, 2:30 AM MST | 925 | 4.45 | 1,060–2,570 |
| Nov 5, 1:30 AM MST | 925 | 4.45 | 1,060–2,570 |
| Nov 5, 12:30 AM MST | 925 | 4.45 | 1,060–2,570 |
| Nov 4, 11:30 PM MST | 925 | 4.45 | 1,080–2,600 |
| Nov 4, 10:30 PM MST | 925 | 4.45 | 1,080–2,600 |
| Nov 4, 9:30 PM MST | 912 | 4.44 | 1,080–2,600 |
| Nov 4, 8:30 PM MST | 912 | 4.44 | 1,080–2,600 |
| Nov 4, 7:30 PM MST | 925 | 4.45 | 1,080–2,600 |
| Nov 4, 6:30 PM MST | 925 | 4.45 | 1,080–2,600 |
| Nov 4, 5:30 PM MST | 938 | 4.46 | 1,080–2,600 |
| Nov 4, 4:30 PM MST | 925 | 4.45 | 1,080–2,600 |
| Nov 4, 3:30 PM MST | 925 | 4.45 | 1,080–2,600 |
| Nov 4, 2:30 PM MST | 925 | 4.45 | 1,080–2,600 |
| Nov 4, 1:30 PM MST | 925 | 4.45 | 1,080–2,600 |
| Nov 4, 12:30 PM MST | 912 | 4.44 | 1,080–2,600 |
| Nov 4, 11:30 AM MST | 912 | 4.44 | 1,080–2,600 |
| Nov 4, 10:30 AM MST | 912 | 4.44 | 1,080–2,600 |
| Nov 4, 9:30 AM MST | 900 | 4.43 | 1,080–2,600 |
| Nov 4, 8:30 AM MST | 912 | 4.44 | 1,080–2,600 |
| Nov 4, 7:30 AM MST | 925 | 4.45 | 1,080–2,600 |
| Nov 4, 6:30 AM MST | 912 | 4.44 | 1,080–2,600 |
| Nov 4, 5:30 AM MST | 925 | 4.45 | 1,080–2,600 |
| Nov 4, 4:30 AM MST | 925 | 4.45 | 1,080–2,600 |
| Nov 4, 3:30 AM MST | 912 | 4.44 | 1,080–2,600 |
| Nov 4, 2:30 AM MST | 925 | 4.45 | 1,080–2,600 |
| Nov 4, 1:30 AM MST | 900 | 4.43 | 1,080–2,600 |
| Nov 4, 12:30 AM MST | 912 | 4.44 | 1,080–2,600 |
| Nov 3, 11:30 PM MST | 925 | 4.45 | 1,130–2,600 |
| Nov 3, 10:30 PM MST | 912 | 4.44 | 1,130–2,600 |
| Nov 3, 9:30 PM MST | 925 | 4.45 | 1,130–2,600 |
| Nov 3, 8:30 PM MST | 925 | 4.45 | 1,130–2,600 |
| Nov 3, 7:30 PM MST | 925 | 4.45 | 1,130–2,600 |
| Nov 3, 6:30 PM MST | 925 | 4.45 | 1,130–2,600 |
| Nov 3, 5:30 PM MST | 938 | 4.46 | 1,130–2,600 |
| Nov 3, 4:30 PM MST | 938 | 4.46 | 1,130–2,600 |
| Nov 3, 3:30 PM MST | 925 | 4.45 | 1,130–2,600 |
| Nov 3, 2:30 PM MST | 912 | 4.44 | 1,130–2,600 |
| Nov 3, 1:30 PM MST | 900 | 4.43 | 1,130–2,600 |
| Nov 3, 12:30 PM MST | 912 | 4.44 | 1,130–2,600 |
| Nov 3, 11:30 AM MST | 900 | 4.43 | 1,130–2,600 |
| Nov 3, 10:30 AM MST | 925 | 4.45 | 1,130–2,600 |
| Nov 3, 9:30 AM MST | 912 | 4.44 | 1,130–2,600 |
| Nov 3, 8:30 AM MST | 900 | 4.43 | 1,130–2,600 |
| Nov 3, 7:30 AM MST | 912 | 4.44 | 1,130–2,600 |
| Nov 3, 6:30 AM MST | 912 | 4.44 | 1,130–2,600 |
| Nov 3, 5:30 AM MST | 900 | 4.43 | 1,130–2,600 |
| Nov 3, 4:30 AM MST | 912 | 4.44 | 1,130–2,600 |
| Nov 3, 3:30 AM MST | 912 | 4.44 | 1,130–2,600 |
| Nov 3, 2:30 AM MST | 900 | 4.43 | 1,130–2,600 |
| Nov 3, 1:30 AM MST | 912 | 4.44 | 1,130–2,600 |
| Nov 3, 12:30 AM MST | 912 | 4.44 | 1,130–2,600 |
| Nov 2, 11:30 PM MST | 912 | 4.44 | 1,190–2,690 |
| Nov 2, 10:30 PM MST | 912 | 4.44 | 1,190–2,690 |
| Nov 2, 9:30 PM MST | 912 | 4.44 | 1,190–2,690 |
| Nov 2, 8:30 PM MST | 925 | 4.45 | 1,190–2,690 |
| Nov 2, 7:30 PM MST | 912 | 4.44 | 1,190–2,690 |
| Nov 2, 6:30 PM MST | 912 | 4.44 | 1,190–2,690 |
| Nov 2, 5:30 PM MST | 925 | 4.45 | 1,190–2,690 |
| Nov 2, 4:30 PM MST | 900 | 4.43 | 1,190–2,690 |
| Nov 2, 3:30 PM MST | 900 | 4.43 | 1,190–2,690 |
| Nov 2, 2:30 PM MST | 912 | 4.44 | 1,190–2,690 |
| Nov 2, 1:30 PM MST | 874 | 4.41 | 1,190–2,690 |
| Nov 2, 12:30 PM MST | 1,180 | 4.64 | 1,190–2,690 |
| Nov 2, 11:30 AM MST | 1,480 | 4.84 | 1,190–2,690 |
| Nov 2, 10:30 AM MST | 1,450 | 4.82 | 1,190–2,690 |
| Nov 2, 9:30 AM MST | 1,430 | 4.81 | 1,190–2,690 |
| Nov 2, 8:30 AM MST | 1,430 | 4.81 | 1,190–2,690 |
| Nov 2, 7:30 AM MST | 1,480 | 4.84 | 1,190–2,690 |
| Nov 2, 6:30 AM MST | 1,460 | 4.83 | 1,190–2,690 |
| Nov 2, 5:30 AM MST | 1,450 | 4.82 | 1,190–2,690 |
| Nov 2, 4:30 AM MST | 1,460 | 4.83 | 1,190–2,690 |
| Nov 2, 3:30 AM MST | 1,430 | 4.81 | 1,190–2,690 |
| Nov 2, 2:30 AM MST | 1,450 | 4.82 | 1,190–2,690 |
| Nov 2, 1:30 AM MST | 1,420 | 4.8 | 1,190–2,690 |
| Nov 2, 12:30 AM MST | 1,430 | 4.81 | 1,190–2,690 |
| Nov 1, 11:30 PM MST | 1,450 | 4.82 | 1,370–2,810 |
| Nov 1, 10:30 PM MST | 1,430 | 4.81 | 1,370–2,810 |
| Nov 1, 9:30 PM MST | 1,430 | 4.81 | 1,370–2,810 |
| Nov 1, 8:30 PM MST | 1,430 | 4.81 | 1,370–2,810 |
| Nov 1, 7:30 PM MST | 1,450 | 4.82 | 1,370–2,810 |
| Nov 1, 6:30 PM MST | 1,480 | 4.84 | 1,370–2,810 |
| Nov 1, 5:30 PM MST | 1,460 | 4.83 | 1,370–2,810 |
| Nov 1, 4:30 PM MST | 1,450 | 4.82 | 1,370–2,810 |
| Nov 1, 3:30 PM MST | 1,460 | 4.83 | 1,370–2,810 |
| Nov 1, 2:30 PM MST | 1,430 | 4.81 | 1,370–2,810 |
| Nov 1, 1:30 PM MST | 1,450 | 4.82 | 1,370–2,810 |
| Nov 1, 12:30 PM MST | 1,450 | 4.82 | 1,370–2,810 |
| Nov 1, 11:30 AM MST | 1,460 | 4.83 | 1,370–2,810 |
| Nov 1, 10:30 AM MST | 1,450 | 4.82 | 1,370–2,810 |
| Nov 1, 9:30 AM MST | 1,420 | 4.8 | 1,370–2,810 |
| Nov 1, 8:30 AM MST | 1,460 | 4.83 | 1,370–2,810 |
| Nov 1, 7:30 AM MST | 1,460 | 4.83 | 1,370–2,810 |
| Nov 1, 6:30 AM MST | 1,450 | 4.82 | 1,370–2,810 |
| Nov 1, 5:30 AM MST | 1,430 | 4.81 | 1,370–2,810 |
| Nov 1, 4:30 AM MST | 1,450 | 4.82 | 1,370–2,810 |
| Nov 1, 3:30 AM MST | 1,430 | 4.81 | 1,370–2,810 |
| Nov 1, 2:30 AM MST | 1,430 | 4.81 | 1,370–2,810 |
| Nov 1, 1:30 AM MST | 1,430 | 4.81 | 1,370–2,810 |
| Nov 1, 1:30 AM MDT | 1,430 | 4.81 | 1,370–2,810 |
| Nov 1, 12:30 AM MDT | 1,450 | 4.82 | 1,370–2,810 |
| Oct 31, 11:30 PM MDT | 1,430 | 4.81 | 1,440–2,750 |
| Oct 31, 10:30 PM MDT | 1,430 | 4.81 | 1,440–2,750 |
| Oct 31, 9:30 PM MDT | 1,430 | 4.81 | 1,440–2,750 |
| Oct 31, 8:30 PM MDT | 1,450 | 4.82 | 1,440–2,750 |
| Oct 31, 7:30 PM MDT | 1,450 | 4.82 | 1,440–2,750 |
| Oct 31, 6:30 PM MDT | 1,420 | 4.8 | 1,440–2,750 |
| Oct 31, 5:30 PM MDT | 1,450 | 4.82 | 1,440–2,750 |
| Oct 31, 4:30 PM MDT | 1,450 | 4.82 | 1,440–2,750 |
| Oct 31, 3:30 PM MDT | 1,450 | 4.82 | 1,440–2,750 |
| Oct 31, 2:30 PM MDT | 1,420 | 4.8 | 1,440–2,750 |
| Oct 31, 1:30 PM MDT | 1,400 | 4.79 | 1,440–2,750 |
| Oct 31, 12:30 PM MDT | 1,450 | 4.82 | 1,440–2,750 |
| Oct 31, 11:30 AM MDT | 1,490 | 4.85 | 1,440–2,750 |
| Oct 31, 10:30 AM MDT | 1,430 | 4.81 | 1,440–2,750 |
| Oct 31, 9:30 AM MDT | 1,450 | 4.82 | 1,440–2,750 |
| Oct 31, 8:30 AM MDT | 1,460 | 4.83 | 1,440–2,750 |
| Oct 31, 7:30 AM MDT | 1,460 | 4.83 | 1,440–2,750 |
| Oct 31, 6:30 AM MDT | 1,460 | 4.83 | 1,440–2,750 |
| Oct 31, 5:30 AM MDT | 1,450 | 4.82 | 1,440–2,750 |
| Oct 31, 4:30 AM MDT | 1,450 | 4.82 | 1,440–2,750 |
| Oct 31, 3:30 AM MDT | 1,430 | 4.81 | 1,440–2,750 |
| Oct 31, 2:30 AM MDT | 1,430 | 4.81 | 1,440–2,750 |
| Oct 31, 1:30 AM MDT | 1,450 | 4.82 | 1,440–2,750 |
| Oct 31, 12:30 AM MDT | 1,450 | 4.82 | 1,440–2,750 |
| Oct 30, 11:30 PM MDT | 1,450 | 4.82 | 1,710–2,900 |
| Oct 30, 10:30 PM MDT | 1,420 | 4.8 | 1,710–2,900 |
| Oct 30, 9:30 PM MDT | 1,450 | 4.82 | 1,710–2,900 |
| Oct 30, 8:30 PM MDT | 1,420 | 4.8 | 1,710–2,900 |
| Oct 30, 7:30 PM MDT | 1,430 | 4.81 | 1,710–2,900 |
| Oct 30, 6:30 PM MDT | 1,430 | 4.81 | 1,710–2,900 |
| Oct 30, 5:30 PM MDT | 1,430 | 4.81 | 1,710–2,900 |
| Oct 30, 4:30 PM MDT | 1,430 | 4.81 | 1,710–2,900 |
| Oct 30, 3:30 PM MDT | 1,430 | 4.81 | 1,710–2,900 |
| Oct 30, 2:30 PM MDT | 1,430 | 4.81 | 1,710–2,900 |
| Oct 30, 1:30 PM MDT | 1,430 | 4.81 | 1,710–2,900 |
| Oct 30, 12:30 PM MDT | 1,430 | 4.81 | 1,710–2,900 |
| Oct 30, 11:30 AM MDT | 1,430 | 4.81 | 1,710–2,900 |
| Oct 30, 10:30 AM MDT | 1,450 | 4.82 | 1,710–2,900 |
| Oct 30, 9:30 AM MDT | 1,450 | 4.82 | 1,710–2,900 |
| Oct 30, 8:30 AM MDT | 1,450 | 4.82 | 1,710–2,900 |
| Oct 30, 7:30 AM MDT | 1,430 | 4.81 | 1,710–2,900 |
| Oct 30, 6:30 AM MDT | 1,430 | 4.81 | 1,710–2,900 |
| Oct 30, 5:30 AM MDT | 1,450 | 4.82 | 1,710–2,900 |
| Oct 30, 4:30 AM MDT | 1,450 | 4.82 | 1,710–2,900 |
| Oct 30, 3:30 AM MDT | 1,430 | 4.81 | 1,710–2,900 |
| Oct 30, 2:30 AM MDT | 1,430 | 4.81 | 1,710–2,900 |
| Oct 30, 1:30 AM MDT | 1,430 | 4.81 | 1,710–2,900 |
| Oct 30, 12:30 AM MDT | 1,430 | 4.81 | 1,710–2,900 |
| Oct 29, 11:30 PM MDT | 1,430 | 4.81 | 1,790–2,970 |
| Oct 29, 10:30 PM MDT | 1,430 | 4.81 | 1,790–2,970 |
| Oct 29, 9:30 PM MDT | 1,430 | 4.81 | 1,790–2,970 |
Map of USGS gauge 13032500 and the river around it
Where SNAKE RIVER NR IRWIN ID sits, with 3 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 Idaho Fish and Game uses are 66°F and 73°F.
Normal for Nov 5: 1,060–2,570 ft³/s (middle half of 79 years of record). Now: 925 ft³/s, below normal.
Below normal for this date. 925 ft³/s is between the 10th and 25th percentiles of daily mean flow for Nov 5 at this gauge over 79 years of record (1940–2026): 10th 895, 25th 1,060, median 1,770, 75th 2,570, 90th 3,370 ft³/s.
Daily means on record for Nov 5: lowest 71 ft³/s, highest 4,900 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 (+1.4% 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.
Species the agency lists for South Fork of the Snake River: Brown Trout, Cutthroat Trout, Mountain Whitefish, Rainbow Trout, Cutbow - Cutthroat x Rainbow Trout.
Source: South Fork Snake River (Snake River) | Idaho Fishing Planner (Idaho Department of Fish and Game).
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 4.45 ft stage, 925 ft³/s at Nov 5, 7:30 PM MST (NWS gauge PALI1; its stage datum can differ from the USGS gauge height).
NWS river forecast forecast issued Nov 5, 8:22 AM MST. Highest point: 4.47 ft, 951 ft³/s on Nov 15, 5:00 AM MST (Below NWS action stage).
| Day | Stage | Flow |
|---|---|---|
| Thu, Nov 5 | 4.44 ft | 912 ft³/s |
| Fri, Nov 6 | 4.44 ft | 912 ft³/s |
| Sat, Nov 7 | 4.44 ft | 912 ft³/s |
| Sun, Nov 8 | 4.44 ft | 912 ft³/s |
| Mon, Nov 9 | 4.44 ft | 912 ft³/s |
| Tue, Nov 10 | 4.44 ft | 912 ft³/s |
| Wed, Nov 11 | 4.44 ft | 912 ft³/s |
| Thu, Nov 12 | 4.45 ft | 925 ft³/s |
| Fri, Nov 13 | 4.46 ft | 938 ft³/s |
| Sat, Nov 14 | 4.46 ft | 938 ft³/s |
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 8:57 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.