Flood Watch issued April 26 at 3:09PM MDT until April 29 at 12:00AM MDT by NWS Billings MT

Runoff from a combination of heavy rain and some mid elevation snow
melt may cause minor flooding of streams and low lying areas near
the foothills.

* WHAT…Flooding caused by rain and snowmelt is possible.

* WHERE…Portions of south central Montana, including the following
areas, Bighorn Canyon, Pryor/Northern Bighorn Mountains and
Southern Big Horn and north central Wyoming, including the
following areas, Northeast Bighorn Mountains and Sheridan
Foothills.

* WHEN…From Sunday evening through Monday evening.

* IMPACTS…Excessive runoff may result in minor flooding of streams
and other low-lying and flood-prone locations close to the
foothills. Some roads may become impassable. Now is the time to
move equipment and livestock to higher ground away from waterways.
Recent burn scars may be more susceptible to produce flooding,
including the Elk west of Dayton and Sheridan.

* ADDITIONAL DETAILS…
– Rain and high elevation snow is expected to develop Sunday
night and continue into Monday afternoon. Rainfall amounts
are expected to range from 1 to 2 inches, while elevations
above 6000 feet see heavy snow. There remains uncertainty
regarding exact snow levels and how much snowmelt occurs with
this system. Snow levels may fall enough to produce some wet
snow at Story and Aberdeen Hill.
– http://www.weather.gov/safety/flood