While the weekend weather has been calm and quiet for the most part, a system is set to track through southern Ontario on Sunday and will bring widespread snow. Snowfall will begin during the afternoon hours and will continue through Monday morning with most regions likely seeing around 5 cm of accumulation. However, there is the potential for some areas to see greater amounts due to enhancement from winds around the Great Lakes. Details and timing, below.
- Cold through Sunday with very cold wind chill values
- Next round of snow moves in late Sunday through early Monday
- Variable temperatures through to Family Day
- Stay up-to-date on the ALERTS in your area
SUNDAY: SNOWY SYSTEM TRACKS THROUGH
Winds from the south will help bring some warmth to southern Ontario on Saturday and will send temperatures climbing towards or slightly above the freezing mark. Much of the region will see dry conditions before the latest system begins tracking into the region during the afternoon and evening hours, though some scattered snow showers are making their way through ahead of the main system.
The first flakes will be flying in the western GTA by midnight and will then spread across southern Ontario during the overnight hours. Regions along Lake Erie's northern shores may see some mixing with rain during the overnight hours, limiting snowfall accumulation there.
MONDAY: TEMPERATURES REBOUND SLIGHTLY
The good news for the Monday morning drive is that the worst of the snow moves through before dawn, except for around the Ottawa Valley, where some additional accumulations are still expected after sun-up.
All told, accumulations will be on the light side -- around 5 cm -- across most of the region. Slightly higher amounts are likely where the still-open Great Lakes enhance snowfall rates, mainly around the shores of Lake Huron and Georgian Bay.
Snow will have tapered off for everyone by the mid-to-late afternoon. On another positive note, a change in the winds will also bump temperatures back up to seasonal for Monday afternoon, with highs in the low single digits for most.
LOOK AHEAD: TEMPERATURE SWINGS WITH ACTIVE PATTERN INTO MID-FEBRUARY
While next week will start mild (at least by early February standards), temperatures will drop, and conditions will change as it progresses. A cold front is expected to cross the region late Tuesday, bring daytime highs to near seasonal temperatures. As well, forecasters are keeping a close eye on a potentially significant late-week system that could bring more snow to the region, but there is some uncertainty in its track at this time.
"Below seasonal temperatures are expected as we head into the Family Day weekend, but temperatures should rebound as we head into the following week with an active pattern expected," says Weather Network meteorologist Dr. Doug Gillham.