NIPAWIN — Increased water levels at Codette and Tobin lakes and increases in outflows at Nipawin and E.B. Campbell dams are expected due to ice jamming upstream significantly increasing water flows.
The Water Security Agency said in a media release it is advising the public of the potential for localized flooding due to ice jamming along the North Saskatchewan River. The advisory is from the Alberta border down to the confluence with the South Saskatchewan River downstream of Prince Albert.
The lateness of snowmelt runoff is increasing the risk of a rapid warmup and melt, resulting in the potential for higher runoff than anticipated.
Residents along the Saskatchewan Rivers are advised to be aware of this event and the potential impacts to property, like irrigation pumps and related equipment, along the river.
The public should exercise extreme caution as ice jams can be highly dynamic, resulting in rapid changes in water levels – under no circumstances should anyone venture out onto an ice jam. While spring ice jamming is not uncommon along the North Saskatchewan River, the lateness of this year’s snowmelt runoff within the basin increases the risk of a rapid melt and a simultaneous breakup of the ice cover.
A near simultaneous breakup, as opposed to a staggered event, may result in a more significant event. While the timing and magnitude of these events is difficult to predict, ice jams due tend to occur at the same locations year after year. Conditions are similar to ice jamming incidents experienced in 2013.