Flood Potential Outlook
Issued by NWS Billings, MT

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FGUS75 KBYZ 031748

1048 AM MST Wed Jan 3 2018

With the recent cold snap, rivers and streams have rapidly
accumulated ice. Normally this process is gradual and results in
little, if any, impacts. However, with such a rapid pace of ice
development over the last week, the risk of ice jams and low land
flooding due to ice jams, has increased. Even larger rivers, such
as the Yellowstone, has quickly developed ice.

Until the waterways have a chance to stabilize to this newly
formed ice, the threat of ice jam flooding will persist along area
rivers and streams. The stabilization process may take a week or
two. Those with interests near rivers and streams should take
precautions to move equipment and livestock to higher ground, and
monitor waterways for flooding.

Ice jams can cause a rapid rise in water levels with little
warning. If you live in an area that is prone to ice jams, be
alert over the next week or two. Please report any flooding to
local law enforcement, and have them relay the report to the
National Weather Service.


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