Warmth dominates southern Ontario as winter fights back in the north

Digital Writers
·3 min read
Warmth dominates southern Ontario as winter fights back in the north
Warmth dominates southern Ontario as winter fights back in the north

The exceptionally dry March pattern in southern Ontario will continue this week, but its luck of missing the late-season storms looks to be coming to an end during this time. The gorgeous weather, with mid-late April-like temperatures, will persist in the days ahead, but the sunshine will eventually be replaced by some unsettled weather.

Meanwhile, northern Ontario will be a completely different story. Winter will attempt to come back into the region with multiple rounds of snow from two Texas lows through Friday. As much as 20-25 cm of snow could fall in parts of the region

Beyond those two lows, very mild temperatures will continue in southern Ontario into next weekend with more unsettled possible by Sunday.

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THROUGH MID-WEEK: SUNSHINE, WARMTH IN SOUTH, WINTER FIGHTS BACK IN NORTH

While the beginning of the week will be goregous in the south, the ridge of high pressure providing the warmth and sunshine will migrate from the Great Lakes to the Atlantic coast over the coming days.

ONTempWed
ONTempWed

In the meantime, well-above seasonal temperatures will dominate all of next week in the south, reaching into the mid-teens most days in areas away from the shores of the Great Lakes. This will be accompanied by abundant sunshine through mid-week.

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A couple of Texas lows will take advantage of the ridge's shift and will target the Great Lakes later this week. The first system will form over the Texas Panhandle and track toward Lake Superior by Wednesday.

This track will continue to support a mild, southerly flow across the south, while a swath of heavy snow will sweep across northern Ontario. Then, a second Texas low will draw another round of snow into the Nickel Belt for Friday.

ONSnow
ONSnow

Some fairly hefty amounts of accumulative snowfall are possible through Friday for northern Ontario. Some areas could see 20-25 cm after the two systems march through.

LOOK AHEAD: DRY STREAK ENDS WITH BOUT OF HEAVIER RAIN LATE WEEK

The next threat for rain will come from a weakening Texas low that will track into northern Ontario on Wednesday, but at this point it does not look like we will see substantial amounts. More significant rain is possible late Thursday and Friday.

This will be from the second Texas low that will form in central Texas and head straight for Lake Huron. This more southerly track will draw the snow into the Nickel Belt and bring a heavier bout of rain for the lower Great Lakes.

OntarioLR (Sunday AM)
OntarioLR (Sunday AM)

Very mild temperatures will continue into the weekend with another system possible Sunday. Temperatures should then trend back to near seasonal for a few days for the final days of March.

Stay tuned to The Weather Network for the latest forecast updates.