BLACKS FORK NEAR ROBERTSON, WY
USGS 09217900 · Utah · reports discharge (live), gauge height
USGS 09217900 · Utah · reports discharge (live), gauge height
What the agencies suggest
During periods of high water, fish move towards the banks to find calmer water and lower velocitiesPennsylvania Fish and Boat Commission
Wading and boating should be avoided if waters are running high and muddy and the streambed is not visiblePennsylvania Fish and Boat Commission
If stream conditions are not favorable, consider fishing at a lakePennsylvania Fish and Boat Commission
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 6:00 PM MST · provisional USGS data
Highest for this date on record for Nov 5 Rising · 24 h Below NWS action stage
Discharge, last 7 days: 169 readings from Oct 29, 7:00 PM MDT to Nov 5, 6:00 PM MST; ranging 69.7 to 140 ft³/s; latest 117 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, 6:00 PM MST | 117 | 2.45 | 33–52 |
| Nov 5, 5:00 PM MST | 112 | 2.42 | 33–52 |
| Nov 5, 4:00 PM MST | 99.7 | 2.35 | 33–52 |
| Nov 5, 3:00 PM MST | 93.2 | 2.31 | 33–52 |
| Nov 5, 2:00 PM MST | 87 | 2.27 | 33–52 |
| Nov 5, 1:00 PM MST | 81.1 | 2.23 | 33–52 |
| Nov 5, 12:00 PM MST | 88.6 | 2.28 | 33–52 |
| Nov 5, 11:00 AM MST | 69.7 | 2.15 | 33–52 |
| Nov 5, 10:00 AM MST | 69.7 | 2.15 | 33–52 |
| Nov 5, 9:00 AM MST | 69.7 | 2.15 | 33–52 |
| Nov 5, 8:00 AM MST | 75.3 | 2.19 | 33–52 |
| Nov 5, 7:00 AM MST | 81.1 | 2.23 | 33–52 |
| Nov 5, 6:00 AM MST | 84 | 2.25 | 33–52 |
| Nov 5, 5:00 AM MST | 91.7 | 2.3 | 33–52 |
| Nov 5, 4:00 AM MST | 96.4 | 2.33 | 33–52 |
| Nov 5, 3:00 AM MST | 98 | 2.34 | 33–52 |
| Nov 5, 2:00 AM MST | 98 | 2.34 | 33–52 |
| Nov 5, 1:00 AM MST | 99.7 | 2.35 | 33–52 |
| Nov 5, 12:00 AM MST | 99.7 | 2.35 | 33–52 |
| Nov 4, 11:00 PM MST | 99.7 | 2.35 | 35–52 |
| Nov 4, 10:00 PM MST | 101 | 2.36 | 35–52 |
| Nov 4, 9:00 PM MST | 101 | 2.36 | 35–52 |
| Nov 4, 8:00 PM MST | 103 | 2.37 | 35–52 |
| Nov 4, 7:00 PM MST | 105 | 2.38 | 35–52 |
| Nov 4, 6:00 PM MST | 106 | 2.39 | 35–52 |
| Nov 4, 5:00 PM MST | 108 | 2.4 | 35–52 |
| Nov 4, 4:00 PM MST | 108 | 2.4 | 35–52 |
| Nov 4, 3:00 PM MST | 106 | 2.39 | 35–52 |
| Nov 4, 2:00 PM MST | 105 | 2.38 | 35–52 |
| Nov 4, 1:00 PM MST | 105 | 2.38 | 35–52 |
| Nov 4, 12:00 PM MST | 105 | 2.38 | 35–52 |
| Nov 4, 11:00 AM MST | 103 | 2.37 | 35–52 |
| Nov 4, 10:00 AM MST | 103 | 2.37 | 35–52 |
| Nov 4, 9:00 AM MST | 101 | 2.36 | 35–52 |
| Nov 4, 8:00 AM MST | 101 | 2.36 | 35–52 |
| Nov 4, 7:00 AM MST | 94.8 | 2.32 | 35–52 |
| Nov 4, 6:00 AM MST | 93.2 | 2.31 | 35–52 |
| Nov 4, 5:00 AM MST | 93.2 | 2.31 | 35–52 |
| Nov 4, 4:00 AM MST | 94.8 | 2.32 | 35–52 |
| Nov 4, 3:00 AM MST | 96.4 | 2.33 | 35–52 |
| Nov 4, 2:00 AM MST | 103 | 2.37 | 35–52 |
| Nov 4, 1:00 AM MST | 108 | 2.4 | 35–52 |
| Nov 4, 12:00 AM MST | 114 | 2.43 | 35–52 |
| Nov 3, 11:00 PM MST | 117 | 2.45 | 34–54 |
| Nov 3, 10:00 PM MST | 121 | 2.47 | 34–54 |
| Nov 3, 9:00 PM MST | 125 | 2.49 | 34–54 |
| Nov 3, 8:00 PM MST | 129 | 2.51 | 34–54 |
| Nov 3, 7:00 PM MST | 137 | 2.55 | 34–54 |
| Nov 3, 6:00 PM MST | 140 | 2.56 | 34–54 |
| Nov 3, 5:00 PM MST | 129 | 2.51 | 34–54 |
| Nov 3, 4:00 PM MST | 121 | 2.47 | 34–54 |
| Nov 3, 3:00 PM MST | 119 | 2.46 | 34–54 |
| Nov 3, 2:00 PM MST | 117 | 2.45 | 34–54 |
| Nov 3, 1:00 PM MST | 110 | 2.41 | 34–54 |
| Nov 3, 12:00 PM MST | 103 | 2.37 | 34–54 |
| Nov 3, 11:00 AM MST | 81.1 | 2.23 | 34–54 |
| Nov 3, 10:00 AM MST | 73.9 | 2.18 | 34–54 |
| Nov 3, 9:00 AM MST | 72.5 | 2.17 | 34–54 |
| Nov 3, 8:00 AM MST | 73.9 | 2.18 | 34–54 |
| Nov 3, 7:00 AM MST | 75.3 | 2.19 | 34–54 |
| Nov 3, 6:00 AM MST | 79.6 | 2.22 | 34–54 |
| Nov 3, 5:00 AM MST | 84 | 2.25 | 34–54 |
| Nov 3, 4:00 AM MST | 88.6 | 2.28 | 34–54 |
| Nov 3, 3:00 AM MST | 94.8 | 2.32 | 34–54 |
| Nov 3, 2:00 AM MST | 99.7 | 2.35 | 34–54 |
| Nov 3, 1:00 AM MST | 108 | 2.4 | 34–54 |
| Nov 3, 12:00 AM MST | 110 | 2.41 | 34–54 |
| Nov 2, 11:00 PM MST | 112 | 2.42 | 35–56 |
| Nov 2, 10:00 PM MST | 112 | 2.42 | 35–56 |
| Nov 2, 9:00 PM MST | 112 | 2.42 | 35–56 |
| Nov 2, 8:00 PM MST | 114 | 2.43 | 35–56 |
| Nov 2, 7:00 PM MST | 114 | 2.43 | 35–56 |
| Nov 2, 6:00 PM MST | 114 | 2.43 | 35–56 |
| Nov 2, 5:00 PM MST | 114 | 2.43 | 35–56 |
| Nov 2, 4:00 PM MST | 112 | 2.42 | 35–56 |
| Nov 2, 3:00 PM MST | 112 | 2.42 | 35–56 |
| Nov 2, 2:00 PM MST | 114 | 2.43 | 35–56 |
| Nov 2, 1:00 PM MST | 115 | 2.44 | 35–56 |
| Nov 2, 12:00 PM MST | 117 | 2.45 | 35–56 |
| Nov 2, 11:00 AM MST | 121 | 2.47 | 35–56 |
| Nov 2, 10:00 AM MST | 123 | 2.48 | 35–56 |
| Nov 2, 9:00 AM MST | 123 | 2.48 | 35–56 |
| Nov 2, 8:00 AM MST | 125 | 2.49 | 35–56 |
| Nov 2, 7:00 AM MST | 127 | 2.5 | 35–56 |
| Nov 2, 6:00 AM MST | 127 | 2.5 | 35–56 |
| Nov 2, 5:00 AM MST | 129 | 2.51 | 35–56 |
| Nov 2, 4:00 AM MST | 129 | 2.51 | 35–56 |
| Nov 2, 3:00 AM MST | 131 | 2.52 | 35–56 |
| Nov 2, 2:00 AM MST | 133 | 2.53 | 35–56 |
| Nov 2, 1:00 AM MST | 135 | 2.54 | 35–56 |
| Nov 2, 12:00 AM MST | 135 | 2.54 | 35–56 |
| Nov 1, 11:00 PM MST | 137 | 2.55 | 34–57 |
| Nov 1, 10:00 PM MST | 137 | 2.55 | 34–57 |
| Nov 1, 9:00 PM MST | 137 | 2.55 | 34–57 |
| Nov 1, 8:00 PM MST | 137 | 2.55 | 34–57 |
| Nov 1, 7:00 PM MST | 135 | 2.54 | 34–57 |
| Nov 1, 6:00 PM MST | 131 | 2.52 | 34–57 |
| Nov 1, 5:00 PM MST | 125 | 2.49 | 34–57 |
| Nov 1, 4:00 PM MST | 121 | 2.47 | 34–57 |
| Nov 1, 3:00 PM MST | 117 | 2.45 | 34–57 |
| Nov 1, 2:00 PM MST | 114 | 2.43 | 34–57 |
| Nov 1, 1:00 PM MST | 112 | 2.42 | 34–57 |
| Nov 1, 12:00 PM MST | 112 | 2.42 | 34–57 |
| Nov 1, 11:00 AM MST | 110 | 2.41 | 34–57 |
| Nov 1, 10:00 AM MST | 110 | 2.41 | 34–57 |
| Nov 1, 9:00 AM MST | 108 | 2.4 | 34–57 |
| Nov 1, 8:00 AM MST | 108 | 2.4 | 34–57 |
| Nov 1, 7:00 AM MST | 108 | 2.4 | 34–57 |
| Nov 1, 6:00 AM MST | 110 | 2.41 | 34–57 |
| Nov 1, 5:00 AM MST | 108 | 2.4 | 34–57 |
| Nov 1, 4:00 AM MST | 106 | 2.39 | 34–57 |
| Nov 1, 3:00 AM MST | 106 | 2.39 | 34–57 |
| Nov 1, 2:00 AM MST | 108 | 2.4 | 34–57 |
| Nov 1, 1:00 AM MST | 108 | 2.4 | 34–57 |
| Nov 1, 1:00 AM MDT | 110 | 2.41 | 34–57 |
| Nov 1, 12:00 AM MDT | 110 | 2.41 | 34–57 |
| Oct 31, 11:00 PM MDT | 110 | 2.41 | 35–57 |
| Oct 31, 10:00 PM MDT | 110 | 2.41 | 35–57 |
| Oct 31, 9:00 PM MDT | 110 | 2.41 | 35–57 |
| Oct 31, 8:00 PM MDT | 108 | 2.4 | 35–57 |
| Oct 31, 7:00 PM MDT | 108 | 2.4 | 35–57 |
| Oct 31, 6:00 PM MDT | 108 | 2.4 | 35–57 |
| Oct 31, 5:00 PM MDT | 108 | 2.4 | 35–57 |
| Oct 31, 4:00 PM MDT | 108 | 2.4 | 35–57 |
| Oct 31, 3:00 PM MDT | 108 | 2.4 | 35–57 |
| Oct 31, 2:00 PM MDT | 110 | 2.41 | 35–57 |
| Oct 31, 1:00 PM MDT | 112 | 2.42 | 35–57 |
| Oct 31, 12:00 PM MDT | 112 | 2.42 | 35–57 |
| Oct 31, 11:00 AM MDT | 112 | 2.42 | 35–57 |
| Oct 31, 10:00 AM MDT | 112 | 2.42 | 35–57 |
| Oct 31, 9:00 AM MDT | 114 | 2.43 | 35–57 |
| Oct 31, 8:00 AM MDT | 114 | 2.43 | 35–57 |
| Oct 31, 7:00 AM MDT | 115 | 2.44 | 35–57 |
| Oct 31, 6:00 AM MDT | 117 | 2.45 | 35–57 |
| Oct 31, 5:00 AM MDT | 117 | 2.45 | 35–57 |
| Oct 31, 4:00 AM MDT | 117 | 2.45 | 35–57 |
| Oct 31, 3:00 AM MDT | 117 | 2.45 | 35–57 |
| Oct 31, 2:00 AM MDT | 115 | 2.44 | 35–57 |
| Oct 31, 1:00 AM MDT | 112 | 2.42 | 35–57 |
| Oct 31, 12:00 AM MDT | 108 | 2.4 | 35–57 |
| Oct 30, 11:00 PM MDT | 106 | 2.39 | 34–60 |
| Oct 30, 10:00 PM MDT | 105 | 2.38 | 34–60 |
| Oct 30, 9:00 PM MDT | 103 | 2.37 | 34–60 |
| Oct 30, 8:00 PM MDT | 101 | 2.36 | 34–60 |
| Oct 30, 7:00 PM MDT | 101 | 2.36 | 34–60 |
| Oct 30, 6:00 PM MDT | 99.7 | 2.35 | 34–60 |
| Oct 30, 5:00 PM MDT | 99.7 | 2.35 | 34–60 |
| Oct 30, 4:00 PM MDT | 98 | 2.34 | 34–60 |
| Oct 30, 3:00 PM MDT | 98 | 2.34 | 34–60 |
| Oct 30, 2:00 PM MDT | 98 | 2.34 | 34–60 |
| Oct 30, 1:00 PM MDT | 98 | 2.34 | 34–60 |
| Oct 30, 12:00 PM MDT | 101 | 2.36 | 34–60 |
| Oct 30, 11:00 AM MDT | 93.2 | 2.31 | 34–60 |
| Oct 30, 10:00 AM MDT | 94.8 | 2.32 | 34–60 |
| Oct 30, 9:00 AM MDT | 96.4 | 2.33 | 34–60 |
| Oct 30, 8:00 AM MDT | 98 | 2.34 | 34–60 |
| Oct 30, 7:00 AM MDT | 99.7 | 2.35 | 34–60 |
| Oct 30, 6:00 AM MDT | 99.7 | 2.35 | 34–60 |
| Oct 30, 5:00 AM MDT | 101 | 2.36 | 34–60 |
| Oct 30, 4:00 AM MDT | 101 | 2.36 | 34–60 |
| Oct 30, 3:00 AM MDT | 103 | 2.37 | 34–60 |
| Oct 30, 2:00 AM MDT | 103 | 2.37 | 34–60 |
| Oct 30, 1:00 AM MDT | 105 | 2.38 | 34–60 |
| Oct 30, 12:00 AM MDT | 105 | 2.38 | 34–60 |
| Oct 29, 11:00 PM MDT | 106 | 2.39 | 34–57 |
| Oct 29, 10:00 PM MDT | 106 | 2.39 | 34–57 |
| Oct 29, 9:00 PM MDT | 106 | 2.39 | 34–57 |
| Oct 29, 8:00 PM MDT | 106 | 2.39 | 34–57 |
| Oct 29, 7:00 PM MDT | 108 | 2.4 | 34–57 |
Map of USGS gauge 09217900 and the river around it
Where BLACKS FORK NEAR ROBERTSON, WY 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. Utah Division of Wildlife 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 Utah rule: 68°F.
Normal for Nov 5: 33–52 ft³/s (middle half of 54 years of record). Now: 117 ft³/s, highest for this date on record.
Highest for this date on record for this date. 117 ft³/s is above the highest daily mean recorded on this date of daily mean flow for Nov 5 at this gauge over 54 years of record (1967–2026): 10th 22, 25th 33, median 44, 75th 52, 90th 63 ft³/s.
Daily means on record for Nov 5: lowest 19.5 ft³/s, highest 83.5 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).
Rising over 24 hours: discharge up 10.4%, from 106 to 117 ft³/s. 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 Blacks Fork: Brook Trout, Cutthroat Trout/Colorado River.
Source: Blue Ribbon Fisheries (Utah Division of Wildlife 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)Rising water. Rising over the last 24 hours (discharge up 10.4%). Keep your way back to the bank in sight and watch the level while you fish. “Rising” is our rule of thumb: more than 10% in discharge or 0.2 ft of gauge height in 24 hours, not a USGS or NWS class.
Flow above the record for this date. Higher than any daily mean USGS has recorded on this date at this gauge. Expect much higher, faster water than usual for the season.
hyswap: flow categories (WDFN_stats schema) (U.S. Geological Survey) Statistics documentation (percentiles of daily mean discharge) (U.S. Geological Survey)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 2.42 ft stage, 112 ft³/s at Nov 5, 5:00 PM MST (NWS gauge BNRU1; its stage datum can differ from the USGS gauge height).
NWS river forecast forecast issued Nov 5, 9:27 AM MST. Highest point: 2.47 ft, 121 ft³/s on Nov 9, 11:00 PM MST (Below NWS action stage).
| Day | Stage | Flow |
|---|---|---|
| Thu, Nov 5 | 2.33 ft | 97 ft³/s |
| Fri, Nov 6 | 2.32 ft | 95 ft³/s |
| Sat, Nov 7 | 2.3 ft | 92 ft³/s |
| Sun, Nov 8 | 2.38 ft | 105 ft³/s |
| Mon, Nov 9 | 2.47 ft | 121 ft³/s |
| Tue, Nov 10 | 2.46 ft | 119 ft³/s |
| Wed, Nov 11 | 2.39 ft | 107 ft³/s |
| Thu, Nov 12 | 2.36 ft | 101 ft³/s |
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 6:16 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.