Ice storm warning issued for southern Ontario

People across southern and central Ontario are beingtold tobrace for another frosty blast of winter, with Environment Canada forecasting an early Friday morning mix of rain, freezing rain and ice pellets.

Ina warning issued Thursday night, the agency said a "major ice storm" was "likely"overnight for parts of Southern Ontario.

The icy mix "may fall heavy at times and be accompanied by a few rumbles of thunder," the agency warned.

The weather could also trigger power outages overnight "from downed tree limbs and power lines due to significant ice accumulation combined with northeast winds gusting to 60 km/h," Environment Canada said.

Toronto Hydro officials said they would beon alert for possible overnight trouble as a result of any icy accumulation.

"Sometimes the weight of it will cause wires to sag or cause them to fall, and that's obviously a public safety concern for us," Christina Basil of Toronto Hydro told CBC News.

The result could well be headaches for many people as they begin the day on Friday.

"Its going to be mess," the CBC's Claire Martin said.

'Icy, slow, dangerous'

"It'sgoing tobe an icy, slow, dangerous morning commute for thousands right across southern and central Ontario," Martin said.

"If you could draw a line from Sarnia to St. Catharines, everything north of that is looking at freezing rain," she said.

On Thursday, icy, snowy, wet weather caused dozens of flights to be cancelled at Pearson, although airlines hadwarned customers to check the status of departures before proceeding to the airport.

Toronto even sent out salt trucks on Thursday, just over a week after its winter contracts expired.

Peter Noehammer, the citys director of transportation services, said the trucks had already gone out on the roads twice by the late morning.

Salt trucksin April

"To augment our own 40 to 50 salt trucks and operators, we called back some of our contractors whose term ended at the end of March, the first week of April," he told CBC News.

"So weve got actually a fair number of trucks at our disposal today, upwards of about 140, 150 trucks."

Noehammer said the city would continue to salt the roads as necessary to make them safe for drivers.