Hydrologic Outlook 05/31/2025 10:59 for Wyoming areas

ESFRIW Temperatures are expected to reach the mid to upper 80s this weekend. Sunday will be the warmest day, with highs in the upper 80s to low 90s across many locations. Low temperatures will also remain well above freezing with low temperatures in the 40s at elevations above 9500 feet. These warm temperatures will continue to lead to an increase in the rate of mountain snowmelt. Most mountain snowpack below 9500 feet has melted out, however, high-elevation mountain snow water equivalent (SWE) above that level still remains. With the expected warm temperatures, a significant portion of that high-elevation snowpack is expected to continue to melt through Sunday night. Minor flooding of small streams and creeks fed by mountain snowmelt is thus possible through Monday. Highest stream flows and crests are expected to occur Sunday morning and Monday morning. Stay tuned for the latest river forecasts. Remember, if you encounter a flooded roadway, turn around don't drown. You never know what road conditions are hidden under the water.