In our post on June 12th, we speculated that Shuswap Lake might remain stable near the annual peak over the following 10 days, possibly increasing by as much as 0.22 m (0.7 ft) to a peak on June 20th. Well, with the variable weather over the past week we were right that the lake should remain stable near elevation 349.0 m but it did not rise as predicted. SWOA has been monitoring the daily river discharge predictions released from the Provincial River Forecast Centre over the past week (each of which look 10 days into the future) and a clearer picture is starting to emerge. The most recent predictions are indicating that the level of the lake will remain near the current level over the next week and then start to slowly decrease at the end of June. This prediction is consistent with observed decreases in the high elevation snowpack across the watershed and the decreases in river discharge being observed in both the Salmon Arm and Shuswap Rivers. As well, the generally drier weather forecasts for the next week will contribute to this trend.
SWOA will continue to monitor the predictions from the River Forecast Centre as they are released until the end of June to make sure that the expected trend continues.
Lake levels can be viewed by clicking here.