A flood watch has been issued For the Lower Maitland and Nine Mile Rivers.
Before the mild spell, the snowpack water equalled about 70 mm and up to 15 mm of rain fell overnight into Friday morning.
The Maitland Valley Conservation Authority says although the waterways were flowing freely Friday morning, ice and debris may continue to accumulate through Monday.
Areas along the Lower Maitland are experiencing minor ice jamming due to high water and ice breakups. Due to this ice jamming risk, a flood watch has be issued for Ashfield-Colborne-Wawanosh, Central Huron and the Town of Goderich.
Elevated flows in the Nine Mile River Watershed, combined with the rapid freeze, could lead to frazil ice at the mouth of the river. Port Albert is under a flood watch.
A water safety bulletin covers the remainder of the watershed due to the risk for flooding in low lying flood plains.
In the meantime, the Saugeen Valley Watershed could see flooding in low lying areas Friday.
The conservation authority says rain and melting snow have caused watercourse levels to rise, and river ice to shift.
Most watercourses will see levels peak today. People should avoid rivers and streams.
The Grand River Conservation Authority is issuing flood warnings for New Hamburg, Drayton, and St. Jacobs.
In a release this morning the conservation authority says flooding is expected in the Level 1 flood zone in the Town of New Hamburg. The water is expected to peak Friday evening.
In Drayton, flooding is expected to affect primarily the fairgrounds area starting this morning and peaking Friday afternoon.
The low-level bridge upstream of St. Jacobs remains closed because of flooding.
The rest of the watershed remains under a flood watch with the continued risk of flooding in low-lying areas.