Indianapolis, Indiana – Ice jam flooding is possible along central Indiana creeks and rivers as warming temperatures break up ice formed during a recent cold wave.
According to the National Weather Service in Indianapolis, substantial ice developed on waterways from mid-January into early February. Recent warmer conditions have led to snowmelt and runoff, and above-normal temperatures are forecast to continue over the next seven days.
Forecasters warn that as river ice weakens and begins to move, it can collect downstream and form ice jams. These blockages may cause rapid fluctuations in water levels and significant rises with little to no warning. Additional rainfall combined with snowmelt could increase the flooding potential.
Ice jam flooding can be highly localized but dangerous, particularly in low-lying areas near rivers and creeks. Water levels may rise quickly behind a jam and then fall just as rapidly if the blockage suddenly releases.
Residents who live near waterways are urged to monitor conditions closely and be prepared to act if a flood warning is issued. The National Weather Service also asks the public to report observed flooding caused by ice jams.
Commuters and students traveling near rivers in central Indiana should remain alert for potential road closures or high water in flood-prone areas.
