Environment Canada is warning Ottawa could see a significant amount of rain starting Thursday. The agency said it expected rain would begin early Thursday morning and continue overnight and into Friday. With so much rain in the last few weeks, the ground is saturated and won't be able to absorb the rainfall, prompting Environment Canada to warn of more flooding. The Ottawa River Regulation and Planning Board has indicated that after several days in decline, water levels will begin to creep back up this week in the Ottawa region. The river is not expected to reach this spring's peak water levels again, however.

Source: CBC News May 08, 2019 20:59 UTC