Your weather when it really mattersTM

Country

Please choose your default site

Americas

Asia - Pacific

Europe

Ontario: Halloween storm risk haunts forecast after windy Wednesday

Tuesday, October 22nd 2019, 7:50 pm - Tracking a potential Halloween storm for Ontario.

A soggy Tuesday is giving way to clearer skies but while the heaviest band pushes out of southern Ontario Tuesday night, that won't be the end of the rain. Gusty winds were already picking up Tuesday evening up across the southwest, and those winds will persist into Wednesday, spurring lake-effect showers -- and stripping a lot of the remaining leaves off of trees -- through the day. We take a look at what you can expect for the days ahead, and an early look at a significant system shaping up for Halloween next week, 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:

  • Lake-effect showers likely Wednesday
  • Strong wind gusts expected through Wednesday evening
  • Potential for late month snow as a colder pattern locks in over the Great Lakes
  • Stay on top of the ALERTS in your area

GUSTY WINDS SPUR LAKE-EFFECT SHOWERS ON WEDNESDAY

The low pressure centre from Tuesday's soggy system will linger over northern Ontario on Wednesday, driving gusty west winds across much of southern Ontario, and strong northerly winds across the northwest.

Temperatures across the south will benefit from the wind direction, keeping afternoon highs on the warm side for the time of year. But those milder temperatures come at the cost of scattered lake-effect showers, mainly across cottage country and Niagara.

WATCH BELOW: TRACKING LINGERING SHOWERS FOR ONTARIO

Even those who don't see showers on Wednesday can expect to feel the impact of the winds, however, as gusts top 60 km/h through the afternoon. Higher gusts are likely along the lake shores.

ongusts

FIRST LOOK: TRACKING A SIGNIFICANT STORM FOR HALLOWEEN

"We have been discussing the transition to a more consistently chilly pattern that would begin during the final week of October and continue well into early November. It now appears that the transition to a colder pattern will be delayed until Halloween," says meteorologist Dr. Doug Gillham. "The initial shots of frigid weather will take aim at the Prairies instead of the Great Lakes, and this will allow us to see some milder weather early next week as well."

The chilly weather is still set to arrive in time for Halloween, with forecasters now watching the potential for significant fall storm as the region transitions to the colder fall weather.

"It is too early to have confidence in the track and timing of this storm, but this could have a significant impact on Halloween," Gillham says.

Early nov pattern

Early November looks to bring a more definite colder pattern, and this will likely lead to some significant lake-effect snow in the traditional snowbelt regions.

Be sure to check back as we continue to track this first potential snow event.

FROM THE MET DESK: THE WORLD'S LAKE-EFFECT SNOW HOT SPOTS MIGHT SURPRISE YOU

Default saved
Close

Search Location

Close

Sign In

Please sign in to use this feature.