Hydrologic Outlook issued June 1 at 1:06PM MDT by NWS Riverton WY

ESFRIW

Temperatures are expected to reach the upper 80s to low 90s across
many locations Sunday. 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
morning. Highest stream flows and crests are expected to occur
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.