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Ontario: Rain pushes out but strong winds blow in

Saturday, October 26th 2019, 7:54 pm - While the heavy rain is expected to taper off, high wind gusts are expected for parts of Ontario.

The remnants of tropical storm Olga are making for a rainy Sunday for most of Southern Ontario, including the Greater Toronto Area.

A flood warning was issued for the GTA early Sunday morning, after 24 to 44 mm of rain fell through the region overnight. Heavy rain can be expected to continue through Sunday morning, but is expected to taper off in the afternoon.

For timing and details on the forthcoming soggy weather, as well as a look at the tricky Halloween forecast that could bring snow, read below.

Visit our Complete Guide to Fall 2019 for an in-depth look at the Fall Forecast, tips to plan for it and a sneak peek at the winter ahead


WEATHER HIGHLIGHTS:

  • Soaking rain continues into Sunday morning; an additional 15 mm expected
  • Gusty winds pick up into Sunday, strongest in Lake Erie and Niagara region
  • Halloween forecast still up in the air
  • Flood warning in effect for Southern Ontario; stay on top of the ALERTS in your area

Southern and Eastern Ontario saw between 24 to 44 mm of rainfall overnight and an additional 15 mm is expected to fall throughout Sunday morning in some parts of the region.

Icons OntarioGTA1 ThisAfternoon The Toronto and Region Conservation Authority (TCRA) issued a flood warning early Sunday morning, warning residents to expect high water levels and slippery banks along all area rivers through till Monday.

Rivers within the GTA will be continuing to experience higher flows and water levels, resulting in hazardous conditions, according to the TRCA.

WATCH BELOW: ONTARIO FUTURE RADAR

The good news is Sunday won’t be a complete washout, with clearing expected for the southwest in the morning and through the afternoon hours in southern areas. Temperatures will remain on the mild side Sunday, with many areas hitting the mid-teens.

However, those milder temperatures will be accompanied in part by strong winds, peaking Sunday.

Environment Canada issued a wind warning associated with a low-pressure system for Southern Ontario early Sunday morning.

Gusts of 80 k/h are likely for some areas, while gusts of up to 90 km/h are possible for the Niagara region. The severe winds are expected to end by Sunday evening.

WATCH BELOW: EBB AND FLOW OF STRONG WINDS

TRICK OR TREAT FORECAST FOR HALLOWEEN?

After Sunday's soaking, a return to gorgeous fall conditions is expected for early next week. However, October's temperamental weather isn't quite finished with Ontario and a potentially potent system will be on Ontario's doorsteps as Arctic air attempts to charge in for Halloween.

By the mid-week, Arctic air will attempt to move into the Great Lakes region, but the milder air will resist.

"Meanwhile, a classic fall storm will track along the boundary between the cold versus warm air. However, there is a lot of uncertainty as to where that boundary will be," says The Weather Network's Dr. Doug Gillham. "There are models (that) keep the boundary to our north and west, allowing temperatures to climb into the upper teens across the Golden Horseshoe on Halloween."

EuroWarm

However, other models suggest the front will push through the region, putting the province on the cold side of the boundary for Wednesday and Halloween, which would drop flurries and bands of lake-effect snow on the snow belt areas.

Regardless of how Halloween ends up playing out, the cold air will inevitably win out as we head into November.

EarlyNovember

Be sure to check back as we continue to track these fall storms and potential snow.

WATCH BELOW: SURE-FIRE WAYS TO WEATHERPROOF YOUR KIDS FOR HALLOWEEN

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