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Heavy rain to slow Monday's evening commute in southern Ontario, 10 cm of snow possible in the north

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Andrea Bagley
Digital Reporter

Monday, April 7, 2014, 9:34 AM -

Southern Ontarians finally enjoyed the first real taste of spring weather as temperatures soared into the double digits on Sunday.

The milder temperatures were accompanied by sunny skies across the region and the city of Hamilton was the hot spot of the entire province at 12.9°C.

Residents however, will be trading the sunglasses for an umbrella as a "moisture-laden" Gulf low pushes in Monday afternoon.


RELATED: Ontario sunshine to give way to April showers


"Moderate rainfall will advance across southern Ontario through Monday, beginning in the southwest in the morning, reaching the Greater Toronto Area around 4-6 pm, and Ottawa-Montreal in the evening hours and overnight hours," says Gina Ressler, a meteorologist at The Weather Network.

The system will likely impact and slow down Monday's evening commute before the rain tapers to showers by Tuesday morning.

Rainfall amounts of 15-30 mm are expected (south of a line from Barrie to Pembroke).

"Local amounts over 30 mm are possible near the lakes and along the U.S. border," Ressler adds.

Predicted rain for Monday combined with snowmelt could cause water levels to raise and cause some minor flooding. The Nottawasaga Valley Conservation Authority and the Kawartha Conservation have issued a flood watch for the area.

Wet snow is also possible Monday overnight through Tuesday morning in the Dundalk Highlands (2-5 cm) and from the Kawartha Highlands to Algonquin (up to 10 cm).

"Locally higher amounts are possible, especially over Bancroft through Algonquin park area, as well as the higher ground southwest of Collingwood including Flesherton, Singhampton and Shelburne," says Environment Canada in a special weather statement early Monday. "Snowfall warnings may be required."


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The temperature roller-coaster is also expected to continue with cooler temperatures on Wednesday, followed by a significant warm-up on Thursday.

"The warmest weather of the season is likely on Thursday to the south of Georgian Bay, quickly erasing any memory of the snow on Monday night," EC adds. "Temperatures are expected to climb into the mid to upper teens, but will likely be more muted east of Georgian Bay."


THE TRUTH ABOUT SPRING: Think spring, think volatile season


Heavy rain could disrupt Monday evening commute in southern Ontario
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