Winter hits back at southern Ontario with snow and chill before warm-up
A winter-like start to the work week in southern Ontario with bursts of snow, cold wind chills and blustery winds. However, the seesaw pattern of spring will make way for mild temperatures again late week.
Southern Ontario has taken a step back into winter this week as temperatures plummeted into the single digits, with the another chance for snow to spread across into Tuesday morning. Brace for slippery roads and tricky travel.
Weather Highlights
Sharp cooldown as Arctic air sends temperatures plummeting
Snow bursts expected Monday overnight into Tuesday morning
Warmth returns on Thursday
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April chill, snow returns to southern Ontario this week
A deepening trough across southern Ontario is siphoning in Arctic air from Nunavut. This air mass exchange is having a drastic impact on temperature and the weather pattern to kick off the week.
Bursts of snow are expected through Tuesday morning as a trough sweeps across southern Ontario.
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An upper-level trough may help enhance snow totals in parts of eastern Ontario and eastern regions of the Greater Toronto Area (GTA).
Generally, totals of less than 3 cm are expected, but locally 5+ cm is possible for eastern regions. Blustery winds can also be expected with gusts 40-60 km/h, making for tricky travel amid reduced visibility in the snow bursts.
Morning wind chills on Tuesday will be in the minus double digits expected. Daytime highs expected to be five to 10 degrees below normal.
Snow departs early for the GTA, but eastern Ontario may see snow linger through the morning and early afternoon.
Daytime highs are forecast to stay below freezing across most of southern and eastern Ontario, with temperatures 7°C to 9°C below normal.
Southern Ontario to see a warm up later this week
The temperature roller-coaster continues as southern Ontario temperatures once again ramps up by Thursday. A new low tracks well north to Hudson Bay, putting southern Ontario comfortably in the warm sector by Thursday.
Highs in the mid-to-upper teens are possible along the 401 corridor.
Showers sweep across southern Ontario Thursday along the system’s cold front. There is uncertainty in Friday’s forecast in southern Ontario, but another round of active weather is likely.
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Stay tuned to The Weather Network for the latest forecast updates across southern Ontario.