A tornado warning has been issued for Savant Lake and Sturgeon Lake in northwestern Ontario. Here's the latest from Environment and Climate Change Canada on how to stay safe.

A line of severe thunderstorms crossed the border and made a mess in southwestern Ontario on Saturday, blocking streets with downed trees and knocking out power to thousands. The storms pushed through Windsor around 1:30 to 2:00 p.m. local time, arriving with strong wind gusts and heavy rainfall.

The EF2 tornado that hit Phelps on Monday was the strongest in New York this year, according to the National Weather Service. Winds reached 115 mph, damaging homes and a barn, but the storm went undetected by radar due to a coverage blind spot.

The Sudbury area is under a severe thunderstorm watch that could produce severe wind gusts, a tornado and heavy rain. Environment Canada said Saturday that wind gusts up to 110 km/hr, heavy downpours, and an isolated tornado are all possible this afternoon and into this evening.

Environment Canada's tornado warning for eastern Ontario has ended. From about 3:20 until 4 p.m. the agency said a severe thunderstorm could possibly produce a tornado in communities such as Kemptville and Merrickville. It's not yet known if a tornado formed.

Severe weather moves east from southern Ontario with raised instability threat throughout eastern Ontario and southern Quebec. Meteorologist Laura Power has the details.

Summer in Ontario may bring with it warm weather, but last week's tornado in Lucan is a reminder that it’s also tornado season.

Severe weather researchers say a weak tornado touched down in a community north of London, Ont., on Monday afternoon.

PHELPS, N.Y. – The National Weather Service confirmed that an EF2 tornado touched down in the Town of Phelps in Ontario County on Monday.

Phelps, N.Y. (WHAM) — A probable tornado ripped through the area of Phelps in Ontario County Monday evening, causing damage across the region. One home on Fort Hill Road that's been around since the 1800s had its roof ripped off during the storm. The owner of the historic house said she moved here in the 1980s and has never seen a storm like this.