GREYS RIVER ABOVE RESERVOIR, NEAR ALPINE, WY
USGS 13023000 · Wyoming · reports discharge (live), gauge height
USGS 13023000 · Wyoming · reports discharge (live), gauge height
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 6:30 PM MST · provisional USGS data
Below normal for Nov 5 Steady · 24 h
Discharge, last 7 days: 164 readings from Oct 29, 7:30 PM MDT to Nov 5, 6:30 PM MST; ranging 233 to 259 ft³/s; latest 233 ft³/s; 1 gap 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, 6:30 PM MST | 233 | 1.33 | 243–325 |
| Nov 5, 5:30 PM MST | 237 | 1.34 | 243–325 |
| Nov 5, 4:30 PM MST | 237 | 1.34 | 243–325 |
| Nov 5, 3:30 PM MST | 237 | 1.34 | 243–325 |
| Nov 5, 2:30 PM MST | 241 | 1.35 | 243–325 |
| Nov 5, 1:30 PM MST | 237 | 1.34 | 243–325 |
| Nov 5, 12:30 PM MST | 241 | 1.35 | 243–325 |
| Nov 5, 11:30 AM MST | 237 | 1.34 | 243–325 |
| Nov 5, 10:30 AM MST | 237 | 1.34 | 243–325 |
| Nov 5, 8:30 AM MST | 233 | 1.33 | 243–325 |
| Nov 5, 7:30 AM MST | 241 | 1.35 | 243–325 |
| Nov 5, 6:30 AM MST | 233 | 1.33 | 243–325 |
| Nov 5, 5:30 AM MST | 241 | 1.35 | 243–325 |
| Nov 5, 4:30 AM MST | 241 | 1.35 | 243–325 |
| Nov 5, 3:30 AM MST | 237 | 1.34 | 243–325 |
| Nov 5, 2:30 AM MST | 237 | 1.34 | 243–325 |
| Nov 5, 1:30 AM MST | 241 | 1.35 | 243–325 |
| Nov 5, 12:30 AM MST | 241 | 1.35 | 243–325 |
| Nov 4, 11:30 PM MST | 241 | 1.35 | 243–322 |
| Nov 4, 10:30 PM MST | 241 | 1.35 | 243–322 |
| Nov 4, 9:30 PM MST | 241 | 1.35 | 243–322 |
| Nov 4, 8:30 PM MST | 241 | 1.35 | 243–322 |
| Nov 4, 7:30 PM MST | 241 | 1.35 | 243–322 |
| Nov 4, 6:30 PM MST | 237 | 1.34 | 243–322 |
| Nov 4, 5:30 PM MST | 241 | 1.35 | 243–322 |
| Nov 4, 4:30 PM MST | 237 | 1.34 | 243–322 |
| Nov 4, 3:30 PM MST | 246 | 1.36 | 243–322 |
| Nov 4, 2:30 PM MST | 237 | 1.34 | 243–322 |
| Nov 4, 1:30 PM MST | 241 | 1.35 | 243–322 |
| Nov 4, 12:30 PM MST | 246 | 1.36 | 243–322 |
| Nov 4, 11:30 AM MST | 237 | 1.34 | 243–322 |
| Nov 4, 10:30 AM MST | 241 | 1.35 | 243–322 |
| Nov 4, 9:30 AM MST | 241 | 1.35 | 243–322 |
| Nov 4, 8:30 AM MST | 241 | 1.35 | 243–322 |
| Nov 4, 7:30 AM MST | 246 | 1.36 | 243–322 |
| Nov 4, 6:30 AM MST | 241 | 1.35 | 243–322 |
| Nov 4, 5:30 AM MST | 241 | 1.35 | 243–322 |
| Nov 4, 4:30 AM MST | 246 | 1.36 | 243–322 |
| Nov 4, 3:30 AM MST | 237 | 1.34 | 243–322 |
| Nov 4, 2:30 AM MST | 241 | 1.35 | 243–322 |
| Nov 4, 1:30 AM MST | 241 | 1.35 | 243–322 |
| Nov 4, 12:30 AM MST | 246 | 1.36 | 243–322 |
| Nov 3, 11:30 PM MST | 241 | 1.35 | 241–322 |
| Nov 3, 10:30 PM MST | 241 | 1.35 | 241–322 |
| Nov 3, 9:30 PM MST | 241 | 1.35 | 241–322 |
| Nov 3, 8:30 PM MST | 246 | 1.36 | 241–322 |
| Nov 3, 7:30 PM MST | 246 | 1.36 | 241–322 |
| Nov 3, 6:30 PM MST | 241 | 1.35 | 241–322 |
| Nov 3, 5:30 PM MST | 246 | 1.36 | 241–322 |
| Nov 3, 4:30 PM MST | 246 | 1.36 | 241–322 |
| Nov 3, 3:30 PM MST | 237 | 1.34 | 241–322 |
| Nov 3, 2:30 PM MST | 246 | 1.36 | 241–322 |
| Nov 3, 1:30 PM MST | 250 | 1.37 | 241–322 |
| Nov 3, 12:30 PM MST | 250 | 1.37 | 241–322 |
| Nov 3, 11:30 AM MST | 246 | 1.36 | 241–322 |
| Nov 3, 10:30 AM MST | 246 | 1.36 | 241–322 |
| Nov 3, 9:30 AM MST | 246 | 1.36 | 241–322 |
| Nov 3, 8:30 AM MST | 246 | 1.36 | 241–322 |
| Nov 3, 7:30 AM MST | 250 | 1.37 | 241–322 |
| Nov 3, 6:30 AM MST | 250 | 1.37 | 241–322 |
| Nov 3, 5:30 AM MST | 250 | 1.37 | 241–322 |
| Nov 3, 4:30 AM MST | 250 | 1.37 | 241–322 |
| Nov 3, 3:30 AM MST | 255 | 1.38 | 241–322 |
| Nov 3, 2:30 AM MST | 255 | 1.38 | 241–322 |
| Nov 3, 1:30 AM MST | 255 | 1.38 | 241–322 |
| Nov 3, 12:30 AM MST | 250 | 1.37 | 241–322 |
| Nov 2, 11:30 PM MST | 250 | 1.37 | 248–337 |
| Nov 2, 10:30 PM MST | 255 | 1.38 | 248–337 |
| Nov 2, 9:30 PM MST | 259 | 1.39 | 248–337 |
| Nov 2, 8:30 PM MST | 259 | 1.39 | 248–337 |
| Nov 2, 7:30 PM MST | 250 | 1.37 | 248–337 |
| Nov 2, 6:30 PM MST | 259 | 1.39 | 248–337 |
| Nov 2, 5:30 PM MST | 255 | 1.38 | 248–337 |
| Nov 2, 4:30 PM MST | 255 | 1.38 | 248–337 |
| Nov 2, 3:30 PM MST | 259 | 1.39 | 248–337 |
| Nov 2, 2:30 PM MST | 255 | 1.38 | 248–337 |
| Nov 2, 1:30 PM MST | 255 | 1.38 | 248–337 |
| Nov 2, 12:30 PM MST | 255 | 1.38 | 248–337 |
| Nov 2, 11:30 AM MST | 255 | 1.38 | 248–337 |
| Nov 2, 10:30 AM MST | 255 | 1.38 | 248–337 |
| Nov 2, 9:30 AM MST | 255 | 1.38 | 248–337 |
| Nov 2, 8:30 AM MST | 259 | 1.39 | 248–337 |
| Nov 2, 7:30 AM MST | 255 | 1.38 | 248–337 |
| Nov 2, 6:30 AM MST | 255 | 1.38 | 248–337 |
| Nov 2, 5:30 AM MST | 259 | 1.39 | 248–337 |
| Nov 2, 4:30 AM MST | 259 | 1.39 | 248–337 |
| Nov 2, 3:30 AM MST | 255 | 1.38 | 248–337 |
| Nov 2, 2:30 AM MST | 259 | 1.39 | 248–337 |
| Nov 2, 1:30 AM MST | 246 | 1.36 | 248–337 |
| Nov 2, 12:30 AM MST | 259 | 1.39 | 248–337 |
| Nov 1, 11:30 PM MST | 259 | 1.39 | 245–339 |
| Nov 1, 10:30 PM MST | 259 | 1.39 | 245–339 |
| Nov 1, 9:30 PM MST | 255 | 1.38 | 245–339 |
| Nov 1, 8:30 PM MST | 255 | 1.38 | 245–339 |
| Nov 1, 7:30 PM MST | 255 | 1.38 | 245–339 |
| Nov 1, 6:30 PM MST | 255 | 1.38 | 245–339 |
| Nov 1, 5:30 PM MST | 259 | 1.39 | 245–339 |
| Nov 1, 4:30 PM MST | 250 | 1.37 | 245–339 |
| Nov 1, 3:30 PM MST | 250 | 1.37 | 245–339 |
| Nov 1, 2:30 PM MST | 255 | 1.38 | 245–339 |
| Nov 1, 1:30 PM MST | 259 | 1.39 | 245–339 |
| Nov 1, 12:30 PM MST | 255 | 1.38 | 245–339 |
| Nov 1, 11:30 AM MST | 255 | 1.38 | 245–339 |
| Nov 1, 10:30 AM MST | 255 | 1.38 | 245–339 |
| Nov 1, 9:30 AM MST | 255 | 1.38 | 245–339 |
| Nov 1, 8:30 AM MST | 255 | 1.38 | 245–339 |
| Nov 1, 7:30 AM MST | 246 | 1.36 | 245–339 |
| Nov 1, 6:30 AM MST | 250 | 1.37 | 245–339 |
| Nov 1, 5:30 AM MST | 246 | 1.36 | 245–339 |
| Nov 1, 4:30 AM MST | 255 | 1.38 | 245–339 |
| Nov 1, 3:30 AM MST | 246 | 1.36 | 245–339 |
| Nov 1, 2:30 AM MST | 250 | 1.37 | 245–339 |
| Nov 1, 1:30 AM MST | 250 | 1.37 | 245–339 |
| Nov 1, 1:30 AM MDT | 255 | 1.38 | 245–339 |
| Nov 1, 12:30 AM MDT | 250 | 1.37 | 245–339 |
| Oct 31, 11:30 PM MDT | 255 | 1.38 | 244–323 |
| Oct 31, 10:30 PM MDT | 246 | 1.36 | 244–323 |
| Oct 31, 9:30 PM MDT | 255 | 1.38 | 244–323 |
| Oct 31, 8:30 PM MDT | 255 | 1.38 | 244–323 |
| Oct 31, 7:30 PM MDT | 255 | 1.38 | 244–323 |
| Oct 31, 6:30 PM MDT | 255 | 1.38 | 244–323 |
| Oct 31, 5:30 PM MDT | 255 | 1.38 | 244–323 |
| Oct 31, 4:30 PM MDT | 250 | 1.37 | 244–323 |
| Oct 31, 3:30 PM MDT | 250 | 1.37 | 244–323 |
| Oct 31, 2:30 PM MDT | 246 | 1.36 | 244–323 |
| Oct 31, 1:30 PM MDT | 250 | 1.37 | 244–323 |
| Oct 31, 12:30 PM MDT | 250 | 1.37 | 244–323 |
| Oct 31, 11:30 AM MDT | 250 | 1.37 | 244–323 |
| Oct 31, 10:30 AM MDT | 237 | 1.34 | 244–323 |
| Oct 31, 9:30 AM MDT | 241 | 1.35 | 244–323 |
| Oct 31, 8:30 AM MDT | 246 | 1.36 | 244–323 |
| Oct 31, 7:30 AM MDT | 246 | 1.36 | 244–323 |
| Oct 31, 6:30 AM MDT | 246 | 1.36 | 244–323 |
| Oct 31, 1:30 AM MDT | 246 | 1.36 | 244–323 |
| Oct 31, 12:30 AM MDT | 246 | 1.36 | 244–323 |
| Oct 30, 11:30 PM MDT | 246 | 1.36 | 243–322 |
| Oct 30, 10:30 PM MDT | 241 | 1.35 | 243–322 |
| Oct 30, 9:30 PM MDT | 241 | 1.35 | 243–322 |
| Oct 30, 8:30 PM MDT | 237 | 1.34 | 243–322 |
| Oct 30, 7:30 PM MDT | 255 | 1.38 | 243–322 |
| Oct 30, 6:30 PM MDT | 255 | 1.38 | 243–322 |
| Oct 30, 5:30 PM MDT | 250 | 1.37 | 243–322 |
| Oct 30, 4:30 PM MDT | 255 | 1.38 | 243–322 |
| Oct 30, 3:30 PM MDT | 255 | 1.38 | 243–322 |
| Oct 30, 2:30 PM MDT | 255 | 1.38 | 243–322 |
| Oct 30, 1:30 PM MDT | 250 | 1.37 | 243–322 |
| Oct 30, 12:30 PM MDT | 255 | 1.38 | 243–322 |
| Oct 30, 11:30 AM MDT | 250 | 1.37 | 243–322 |
| Oct 30, 10:30 AM MDT | 255 | 1.38 | 243–322 |
| Oct 30, 9:30 AM MDT | 250 | 1.37 | 243–322 |
| Oct 30, 8:30 AM MDT | 250 | 1.37 | 243–322 |
| Oct 30, 7:30 AM MDT | 246 | 1.36 | 243–322 |
| Oct 30, 6:30 AM MDT | 250 | 1.37 | 243–322 |
| Oct 30, 5:30 AM MDT | 250 | 1.37 | 243–322 |
| Oct 30, 4:30 AM MDT | 259 | 1.39 | 243–322 |
| Oct 30, 3:30 AM MDT | 246 | 1.36 | 243–322 |
| Oct 30, 2:30 AM MDT | 255 | 1.38 | 243–322 |
| Oct 30, 1:30 AM MDT | 250 | 1.37 | 243–322 |
| Oct 30, 12:30 AM MDT | 255 | 1.38 | 243–322 |
| Oct 29, 11:30 PM MDT | 250 | 1.37 | 243–328 |
| Oct 29, 10:30 PM MDT | 246 | 1.36 | 243–328 |
| Oct 29, 9:30 PM MDT | 246 | 1.36 | 243–328 |
| Oct 29, 8:30 PM MDT | 255 | 1.38 | 243–328 |
| Oct 29, 7:30 PM MDT | 250 | 1.37 | 243–328 |
Normal for Nov 5: 243–325 ft³/s (middle half of 75 years of record). Now: 233 ft³/s, below normal.
Below normal for this date. 233 ft³/s is between the 10th and 25th percentiles of daily mean flow for Nov 5 at this gauge over 75 years of record (1938–2026): 10th 209, 25th 243, median 280, 75th 325, 90th 377 ft³/s.
Daily means on record for Nov 5: lowest 150 ft³/s, highest 472 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 (−1.7% 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.
Map of USGS gauge 13023000 and the river around it
Where GREYS RIVER ABOVE RESERVOIR, NEAR ALPINE, WY sits 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 Wyoming Game and Fish uses are 65°F, 68°F and 70°F.
Species the agency lists for Greys River: Snake River Cutthroat.
Source: Yellow streams (WGFD stream classification: Yellow, 50-299 lbs trout/mile) (Wyoming Game and Fish Department).
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.
NWS observed 1.33 ft stage, 250 ft³/s at Nov 5, 6:30 PM MST (NWS gauge GREW4; its stage datum can differ from the USGS gauge height).
NWS has not set flood categories for this gauge.
NWS river forecast forecast issued Nov 5, 8:14 AM MST. Highest point: 1.34 ft, 255 ft³/s on Nov 5, 11:00 AM MST.
| Day | Stage | Flow |
|---|---|---|
| Thu, Nov 5 | 1.34 ft | 255 ft³/s |
| Fri, Nov 6 | 1.31 ft | 242 ft³/s |
| Sat, Nov 7 | 1.31 ft | 242 ft³/s |
| Sun, Nov 8 | 1.31 ft | 242 ft³/s |
| Mon, Nov 9 | 1.31 ft | 242 ft³/s |
| Tue, Nov 10 | 1.31 ft | 242 ft³/s |
| Wed, Nov 11 | 1.3 ft | 237 ft³/s |
| Thu, Nov 12 | 1.3 ft | 237 ft³/s |
| Fri, Nov 13 | 1.3 ft | 237 ft³/s |
| Sat, Nov 14 | 1.29 ft | 233 ft³/s |
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 7:08 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.