Wyoming
Snowpack & runoff
Snow-water equivalent by basin and the seasonal runoff outlook for Wyoming's rivers, translated into what it means for fishing: early or late runoff, high or low summer flows, how well reservoirs fill, and which waters hold up best. Updated daily through the snow season.
Wyoming's snowpack is sitting close to average: 93% of normal statewide means a runoff window close to typical timing and summer flows that should hold up into August on most major rivers.
It's a normal-year setup: June freestones, July alpine streams, August dries on the bigger tailwaters. Watch the runoff curve in mid-May; that's still the biggest variable for timing.
| River | Region | Basin snowpack | SWE now / normal | Median melt-out |
|---|---|---|---|---|
| Gros Ventre River | Jackson Hole | 400% | 0.4" / 0.1" | ~Jun 6 |
| Upper Green River | Green River Basin | 100% | 0.1" / 0.1" | ~Jun 18 |
| Wind River | Wind River Country | 33% | 0.1" / 0.3" | ~Jun 26 |
| Shoshone River | Bighorn Basin | 25% | 0.1" / 0.4" | ~Jun 26 |
| Buffalo Fork River | Jackson Hole | 0% | 0.0" / 0.3" | ~Jun 28 |
| Snake River | Jackson Hole | 0% | 0.0" / 0.3" | ~Jun 28 |
| Greys River | Star Valley | — | 0.0" / 0.0" | ~Jun 12 |
| Hoback River | Jackson Hole | — | 0.0" / 0.0" | ~Jun 12 |
| New Fork River | Green River Basin | — | 0.0" / 0.0" | ~May 28 |
| Salt River | Star Valley | — | 0.1" / 0.0" | ~Jun 6 |