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Hydrologic Outlook

Hydrologic Outlook

Hydrologic Outlook
National Weather Service Billings MT
951 AM MDT Sun May 31 2020

...Rising river and stream levels will continue into early this

Hot temperatures are expected today. Although temperatures will be
cooler to begin the week, readings will remain above normal. This
will result in continued melting of the existing snow pack (above
8000 feet) in the mountains into early this week. The snow melt will
cause increased flows along rivers and streams emerging from the
mountains. This includes the Yellowstone, Clarks Fork of the
Yellowstone, Shields, Boulder, Stillwater, Little Bighorn and Tongue
Rivers, as well as numerous other smaller streams.

Afternoon temperatures at 8000 feet will reach the 60s and 70s, and
overnight temperatures will stay above freezing through much of the
night. Flooding resulting in significant impacts is not expected at
this time. However, some minor flooding is possible especially on
the Clarks Fork of the Yellowstone near Belfry. Many rivers will
reach the highest levels we have seen this spring.

Recreationists near the foothills should be prepared for changing
conditions and use extra caution when in and near the water. Flows
will be fast, and the water is cold. Those with interests near
waterways should move equipment and livestock away from low lying

The latest stages and forecasts for rivers and streams can be found
at our web page:


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